Military Equipment & Hardware Acronyms

The Bechtel/Bettis-designed pressurized-water naval reactor plant installed in Ford-class aircraft carriers (CVN-78 onward) — two A1B reactors per ship — designed with significantly greater electrical output than the A4W in Nimitz-class to support the Electromagnetic Aircraft Launch System (EMALS), Advanced Arresting Gear (AAG), and future directed-energy weapon and sensor loads on Ford-class.

"A1B — the Ford-class CVN reactor plant, more electrical output than A4W for EMALS / AAG."

A1B is the A4W successor — the reactor plant in Ford-class CVNs, designed specifically to produce significantly more electrical power than A4W did. The Ford-class electrical demand from EMALS (electromagnetic catapults), AAG (advanced arresting gear), the larger AESA radar suite, and the future directed-energy weapons the carriers are designed to grow into all required more electrical generation than the Nimitz-class plant could produce. A1B is a Bettis-designed plant (the design lab on Nautilus and on most submarine plants, expanding into carrier work for Ford-class). The plant inherits the design philosophy of A4W — long core life, high reliability, very tight operating margins — and adds the electrical capacity. Lead-ship USS Gerald R. Ford completed its first combat deployment in 2022-2023; the plant itself has performed well, distinct from the EMALS / AAG reliability issues that drew more of the program's political attention.

A four-engine turboprop military transport aircraft developed by Airbus Defence and Space, operated by the Luftwaffe and other European partner nations — designed to provide a strategic-tactical transport capability between the C-130 tactical and C-17 strategic categories — German deliveries began in 2014, replacing the legacy Transall C-160 in Luftwaffe service — capable of paradrop operations, austere-airfield operations, aeromedical evacuation, and aerial refueling in the tanker-configured variants.

"A400M Atlas — Airbus four-turboprop transport, replaces C-160 Transall in Luftwaffe service since 2014."

The A400M Atlas is the Luftwaffe's strategic-tactical transport — a four-engine turboprop aircraft from Airbus Defence and Space that sits operationally between the US C-130 Hercules tactical transport and the C-17 Globemaster III strategic transport. German deliveries began in 2014, gradually replacing the legacy C-160 Transall (the workhorse that had carried the Luftwaffe air-mobility load since the 1960s). The aircraft has had a turbulent development history (the program slipped significantly during the 2000s and capabilities were delivered in tranches rather than all at once), but the operational capability is now genuinely mature in Luftwaffe service. For a US Air Force air-mobility partner, the A400M is the closest European-built counterpart to a C-130J — turboprop tactical airlift with strategic-range capability, paradrop operations, austere-airfield operations, and aeromedical evacuation as the standard mission set, with aerial-refueling capability available in tanker-configured variants.

The Westinghouse-designed pressurized-water naval reactor plant installed in Nimitz-class aircraft carriers (CVN-68 through CVN-77) — two A4W reactors per ship, each driving two of the four propeller shafts — designed for the Nimitz-class service life with mid-life Refueling and Complex Overhaul (RCOH) at Newport News Shipbuilding refueling each reactor once during the ship's approximately 50-year service life.

"A4W — the Westinghouse PWR plant in Nimitz-class CVNs, 2 reactors per ship."

A4W is the reactor plant that has powered the Nimitz-class CVN for five decades — Westinghouse-designed pressurized-water reactor (PWR), two per ship driving the four-shaft propulsion, with each reactor refueled once during the carrier's service life at the mid-life RCOH (Refueling and Complex Overhaul) at Newport News. The A4W produces essentially unlimited steaming endurance plus the electrical and steam power the carrier needs for catapults, weapons elevators, hotel loads, and aviation operations. The plant runs hot and runs all the time — at-sea, a Nimitz-class CVN has both reactors critical and on the load. The A1B reactor in Ford-class is the next-generation successor; A4W is what the operating Fleet still runs on through the 2030s.

Amphibious Assault Fuel System (AAFS) — a Marine Corps expeditionary bulk-fuel system used to receive, store, and distribute bulk petroleum products ashore during amphibious operations, consisting of collapsible fabric tanks, pumping assemblies, fuel hoses, and dispensing equipment that can be rapidly emplaced in support of forces ashore from supply ships or beach interface points.

"The Marine Corps' shore-side bulk fuel system for amphibious operations."

AAFS is the kit a Marine bulk fuel specialist (MOS 1391) drags ashore to keep the tanks, vehicles, and aircraft running once the landing force is established — collapsible fabric bladders, pump assemblies, and hose runs that turn a beach into a fuel point. It's heavy, finicky, prone to leaks at every fitting, and absolutely essential — without AAFS the maneuver elements ashore run dry inside 48-72 hours of disconnecting from ship-supplied fuel. The acronym shows up alongside ABFDS (aerial bulk fuel delivery) and ABLTS (amphibious bulk liquid transfer) as the three legs of the expeditionary fuel architecture; together they are how the Marine Corps puts fuel on a beach when there is no port and no pipeline. If you're ever a 1391, AAFS is your daily life and your performance evaluation rolled into one.

The legacy US Marine Corps tracked amphibious assault vehicle (AAV-7, originally designated LVTP-7), fielded since 1972 with multiple modernization variants (AAV-7A1) — capable of ship-to-shore amphibious assault and overland operations as a tracked APC — being replaced by the ACV Amphibious Combat Vehicle through the early 2020s, with operational use suspended after the July 2020 sinking incident.

"The legacy AAV — LVTP-7/AAV-7, replaced by ACV."

AAV (Amphibious Assault Vehicle, formally LVTP-7 in original designation, AAV-7 and AAV-7A1 in service) is the tracked amphibious assault vehicle that has been the Marine Corps's ship-to-shore vehicle since 1972 — tracked, armored, capable of swimming from ship to shore and operating overland as a tracked APC. A fatal training incident off San Clemente Island in July 2020 (an AAV sank with the loss of 8 Marines and 1 Navy corpsman) led to a Marine Corps suspension of AAV waterborne operations and accelerated divestment of the platform in favor of the ACV. The AAV is being progressively retired through the 2020s as ACV fielding completes; the legacy fleet is being divested or transferred to allied operators with continuing operations in non-waterborne roles.

Advanced Base Functional Component (ABFC) — a Navy and Marine Corps logistics planning concept consisting of a pre-packaged, modular set of personnel, equipment, supplies, and facilities designed to provide a specific functional capability (e.g., expeditionary airfield, port operations, hospital, fuel point) at an advanced base, allowing expeditionary forces to rapidly establish required capability ashore.

"A pre-packaged modular capability set used to build out an expeditionary advanced base."

ABFC is the Navy's way of saying "here is a pre-planned kit that builds a specific capability at an advanced base — drop it in and you have the capability" — an expeditionary airfield ABFC, a port-operations ABFC, a medical-treatment ABFC. The concept is decades old but lives on in modern expeditionary advanced base operations (EABO) planning, where the Marine Corps is rebuilding around the idea of small, dispersed, lethal advanced bases in the Pacific. To a Seabee battalion (NMCB) or a Marine combat engineer, ABFC is the planning vocabulary that explains why their construction set is organized the way it is. To everyone else, it's a planning artifact buried in JP 4-0.

Aerial Bulk Fuel Delivery System (ABFDS) — a roll-on/roll-off bulk fuel delivery system installed in transport aircraft (primarily C-17 and C-130) consisting of fuel tanks, pumps, and dispensing equipment that enable an airlifter to deliver bulk fuel directly to austere airfields or forward arming and refueling points (FARPs) without permanent fuel infrastructure.

"The roll-on aircraft fuel system that turns a C-17 or C-130 into a flying fuel truck."

ABFDS is the kit that turns a cargo aircraft into a flying fuel truck — collapsible tanks, pumps, and dispensing gear rolled onto a C-17 or C-130 to deliver Jet-A directly to an austere airfield, a FARP, or a beach where the ground-based fuel system isn't yet established. It's how the Air Force keeps Marine aviation and Army aviation fueled in the first 24-72 hours of an expeditionary operation, before AAFS, ABLTS, or fixed pipelines come online. To an aerial port airman or a fuels specialist (MOS 2F0), ABFDS is real, physical equipment they sign for and operate; to a maneuver commander, it's the reason their helicopters didn't time out waiting for fuel. ABFDS pairs with FARP doctrine and shows up in any joint logistics rehearsal for an opposed entry.

Amphibious Bulk Liquid Transfer System (ABLTS) — a Navy and Marine Corps ship-to-shore bulk fuel and water transfer system consisting of flexible pipelines, pumps, and connectors that move bulk liquids from an amphibious or auxiliary ship offshore to a fuel or water reception point on the beach or shore-based storage system (AAFS), enabling sustainment of forces ashore from ship-supplied bulk product.

"The ship-to-shore flexible pipeline that moves bulk fuel and water from gators to the beach."

ABLTS is the floating pipeline that connects an amphibious ship offshore to a fuel or water reception point on the beach — the maritime side of the expeditionary fuel architecture that AAFS terminates on land. Setting up ABLTS is a Beachmaster and Seabee operation in heavy weather and contested water — the kind of evolution that goes well on a slide and rarely goes cleanly in real life. To a Marine bulk fuel specialist (MOS 1391) or a Navy expeditionary logistics group sailor, ABLTS is the system that has to work before AAFS matters; to a maneuver commander, it's the supply line that lets Marines keep maneuvering ashore. Together AAFS, ABFDS, and ABLTS are the three legs of how the Marine Corps and Navy put bulk fuel where forces actually fight.

The US Army and Marine Corps main battle tank (M1 family, current production M1A2 SEPv3 and the planned M1E3 modernization), 120mm smoothbore main gun, composite and depleted-uranium armor packages, gas turbine engine, in service since the early 1980s with continuous modernization — the heavy combat vehicle of US armored brigade combat teams and partner armed forces.

"The Army main battle tank — M1A2 SEPv3 current, M1E3 next."

Abrams is the Army's (and historically Marine Corps') main battle tank — gas turbine power, 120mm smoothbore, composite armor with depleted-uranium inserts, and the heavy combat vehicle of armored brigade combat teams. The M1A2 SEPv3 is the current production variant with significant upgrades to fire control, ammunition, and survivability; the planned M1E3 modernization is intended to address weight, power, and lethality limits of the current chassis. The Marine Corps divested its Abrams in the 2020-2022 timeframe as part of Force Design 2030. Allied operators include Egypt, Saudi Arabia, Kuwait, Iraq, Australia, Poland, and (recently) Ukraine. Abrams in Ukraine has been a major operational and political development.

The US Army and Marine Corps combat-engineer breaching vehicle (M1150 ABV), based on the M1 Abrams chassis with a full-width mine plow, line charges (M58 MICLIC), and other breaching equipment — designed to defeat minefields, obstacle belts, and complex obstacles under armor protection — fielded across heavy formation combat engineer units to provide the leading-edge breaching capability for ABCT operations.

"The ABV — Abrams-based breaching vehicle, mine plow, MICLIC line charges."

ABV is the armored breaching vehicle for heavy formations — M1 Abrams-derived chassis with a full-width mine plow, M58 Mine Clearing Line Charge launchers (the rocket-projected line charge that detonates and clears a path through a minefield), and the broader breaching equipment that combat engineers use to defeat obstacle belts under fire. The vehicle gives ABCT combat engineers the leading-edge breaching capability that ordinary engineer dismounts cannot provide under heavy fire. Fielding has been across ABCT engineer formations; both Army and Marine Corps operate ABVs. The vehicle is one of the principal manifestations of the broader joint emphasis on combined-arms breaching operations against peer-adversary obstacle defenses.

The US Air Force Special Operations Command side-firing aerial gunfire platform (AC-130 variants including the current AC-130J Ghostrider, with legacy AC-130U Spooky and AC-130W Stinger II variants retired or transitioning), derived from the C-130 Hercules airframe with 30mm and 105mm side-firing cannons, AGM-114 Hellfire missiles, GBU-39 Small Diameter Bombs, and AGM-176 Griffin missiles — providing precision close-air-support, armed reconnaissance, and air interdiction for SOF and conventional forces.

"The AFSOC gunship — side-firing cannons and missiles on a C-130 airframe."

AC-130 Gunship is the side-firing aerial gunfire platform AFSOC operates from C-130 airframes — 30mm Bushmaster cannon and 105mm howitzer on side mounts, plus Hellfire missiles, Griffin missiles, and Small Diameter Bombs on follow-on mounts. The current production variant is the AC-130J Ghostrider; legacy AC-130U Spooky II and AC-130W Stinger II variants have been retired or are transitioning out. The aircraft provides extended-duration close-air-support and armed reconnaissance from medium altitude, with sensors and weapons that work in conditions where other platforms struggle. AFSOC operates the type from Cannon AFB (NM) and Hurlburt Field (FL). The aircraft has flown extensively across SOF operations and supported conventional forces in many engagements.

Army Container Asset Management System (ACAMS) — the Army's information system used to track, account for, and manage the global inventory of Army-owned and Army-controlled intermodal containers (CONEX, TRICON, QUADCON, ISO containers), including their location, condition, current contents, and movement history through the defense transportation system.

"The Army's inventory and tracking system for shipping containers (CONEX, TRICON, ISO)."

ACAMS is the system the Army uses to keep track of where every CONEX, TRICON, QUADCON, and ISO container is — because losing track of a container that has somebody's sensitive items, ammunition, or unit equipment inside it is a career-defining event for whoever owns the property book. To a unit movement officer or a transportation NCO, ACAMS is the screen they touch every time a container moves on or off the installation, every time they prep for a deployment, every time CIF or PBO does a containers-on-hand check. The system isn't loved — its UX is dated and its workflows are slow — but it's the system of record, and a missing container creates a paperwork crisis that only ACAMS can solve.

The US Marine Corps wheeled 8x8 amphibious combat vehicle (ACV), BAE Systems/IVECO prime, designed to replace the legacy AAV Amphibious Assault Vehicle — provides ship-to-shore lift of Marine infantry, with greater open-water swim capability than initial expectations though with operational constraints in heavy sea states — fielded since 2020 with multiple variants (Personnel ACV-P, Command ACV-C, Recovery ACV-R, planned 30mm gun-equipped ACV-30).

"The ACV — wheeled 8x8 amphibious combat vehicle, replaces legacy AAV."

ACV is the wheeled amphibious combat vehicle replacing the legacy tracked AAV Amphibious Assault Vehicle — BAE Systems/IVECO prime, 8x8 wheeled, with significant open-water swim capability though with operational constraints in heavy sea states (the AAV community had legitimate technical concerns about the wheeled platform's open-water performance compared to the tracked AAV). Fielding has been across Marine Corps amphibious assault battalions since 2020, with multiple variants (Personnel ACV-P troop carrier, Command ACV-C, Recovery ACV-R, planned 30mm gun-equipped ACV-30). The vehicle had a fatal training incident in July 2020 (a separate AAV incident, not ACV) that led to a Marine Corps suspension of waterborne operations and an extensive safety review. ACV represents the post-AAV future of Marine amphibious assault.

Automated Explosive Ordnance Disposal Publication (AEODPS) — the digital and automated publication system used to disseminate explosive ordnance disposal technical data, render-safe procedures, ordnance recognition information, and incident reporting formats to deployed EOD units, replacing legacy paper-based EOD reference libraries with searchable, updatable digital references on hardened tablets and laptops.

"The digital EOD reference library that replaced the old paper technical manual binders."

AEODPS is the digital successor to the binder-of-EOD-publications that older EOD techs hauled around — a searchable digital library of ordnance recognition photos, render-safe procedures, fuze data, and incident reporting formats loaded onto a ruggedized tablet that lives in the EOD truck and the deployment kit. The acronym shows up in every EOD school program of instruction (the Naval School EOD at Eglin teaches the AEODPS workflow) and in any joint EOD doctrine document. To a 3E8X1 or a 2336 in the field, AEODPS is the screen they consult before they walk down to the device; to anyone outside EOD, it's an invisible piece of infrastructure that means the operator does not have to remember 4,000 ordnance signatures from memory.

Advanced Field Artillery Tactical Data System (AFATDS) — the joint and Army automated fire support command-and-control system that processes calls for fire, executes fire mission tactical and technical processing, manages fire support coordination measures, and links fires sensors (radars, observers), fires effectors (artillery, mortars, naval surface fires, joint fires), and the joint targeting cycle across echelons from forward observer to corps fires cell.

"The Army's digital fire control system that turns a call for fire into an artillery mission."

AFATDS is the green-screen software that runs Army and joint fires — the system on the FDC laptop that takes a call for fire from a forward observer, processes it against the current fire support coordination measures and the unit's gun status, and pushes the technical fire-direction solution to the firing battery. Every 13F observer, every 13D fire-direction NCO, and every 13A officer above platoon level lives in AFATDS; it talks to JADOCS, to the radar feeds (Q-50, Q-53), to AFATDS instances at the next echelon up, and out to the joint world via VMF and Link 16 gateways. The system is famously not loved (the UI is dated, the workflows are unforgiving, the network requirements are brutal) but it is the system of record, and a brigade fires cell that cannot work AFATDS fluently cannot deliver fires fluently.

The US Air Force air-launched cruise missile family (AGM-86, multiple variants including the nuclear AGM-86B with W80-1 warhead and the conventional AGM-86C/D Conventional Air Launched Cruise Missile CALCM), fielded on B-52H bombers since the 1980s — the nuclear AGM-86B remains the current air-launched leg of the nuclear triad pending LRSO fielding; the conventional CALCM variants were retired in 2019.

"The legacy nuclear ALCM — B-52H carries, W80-1 warhead, LRSO is the successor."

AGM-86 ALCM is the nuclear-armed air-launched cruise missile that has been the air leg of the nuclear triad's standoff capability for four decades — fielded on B-52H, carrying the W80-1 warhead, with significant inventory in the active stockpile. The missile is aging and will be replaced by LRSO (AGM-181) when that program fields beginning in the late 2020s. The conventional CALCM variants (AGM-86C and D) provided long-range conventional strike from B-52H and were used in Iraq, Bosnia/Kosovo, and Afghanistan operations before being retired in 2019. The historical and current role of ALCM is one of the principal questions of bomber-leg credibility against modern air defenses.

A NATO commonly-funded and commonly-owned wide-area ground surveillance capability, comprising a fleet of RQ-4D Phoenix unmanned aircraft (NATO-modified Northrop Grumman RQ-4 Global Hawk variants) operated from Naval Air Station Sigonella in Sicily, Italy — provides ground-moving-target indication and synthetic aperture radar imagery to Alliance commanders, with operations and analysis performed by a multinational AGS Force.

"NATO's commonly-owned ground surveillance UAV fleet — RQ-4D Phoenix at Sigonella IT."

AGS is the Alliance's commonly-funded and commonly-owned ground-surveillance UAV fleet — RQ-4D Phoenix aircraft (NATO-specific variants of the Northrop Grumman RQ-4 Global Hawk) operated from NAS Sigonella in Sicily, with a multinational AGS Force conducting operations and analysis. The capability provides wide-area ground-moving-target indication and synthetic aperture radar imagery to Alliance commanders. AGS is one of the few NATO-commonly-owned hardware capabilities (most equipment in the Alliance is nationally owned with contributions to Alliance missions); the commonly-owned model also applies to NAEW&CF (E-3A AWACS) and a handful of other capabilities. For US Air Force officers working in NATO ISR billets, AGS is one of the principal Alliance-owned ISR feeds in the operational picture.

The US Marine Corps twin-engine attack helicopter (AH-1Z Viper), Bell prime, derived from the AH-1W Super Cobra airframe with four-blade composite rotors, modernized sensors and weapons systems, and the H-1 program four-blade rotor system shared with the UH-1Y Venom — fielded since 2011 as part of the H-1 program upgrade, providing Marine air-ground task force (MAGTF) attack-helicopter capability.

"The Marine Corps attack helicopter — AH-1Z Viper, H-1 program four-blade upgrade."

AH-1Z Viper is the Marine Corps attack helicopter — Bell-built (different lineage than the Army's Sikorsky-Boeing AH-64), twin-engine, four-blade composite rotors (shared with UH-1Y Venom under the H-1 program), and a weapons load including the 20mm three-barrel rotary cannon, Hellfire missiles, and 70mm Hydra rockets. The H-1 program upgraded the legacy AH-1W Super Cobra to the AH-1Z standard with the four-blade rotor system, modernized cockpit, and improved sensors. The aircraft pairs with the UH-1Y Venom for the Marine aviation light-attack and utility-helicopter missions; the two aircraft share approximately 85% of components, which is a significant maintenance and logistics advantage.

The US Army two-seat attack helicopter (AH-64 Apache, current production AH-64E Version 6 / Guardian), Boeing prime, fielded since 1986 with multiple variants (AH-64A legacy, AH-64D Longbow, AH-64E Guardian current) — armed with the 30mm M230 chain gun, Hellfire (and emerging JAGM) missiles, and 70mm Hydra-70 rockets — the principal US Army attack helicopter and broadly operated across allied air forces (UK, Netherlands, Egypt, Israel, Japan, Korea, Saudi Arabia, India among others).

"The Army attack helicopter — AH-64E Guardian current, 30mm chain gun and Hellfire/JAGM."

AH-64 Apache is the Army attack helicopter — two pilots in tandem, 30mm M230 chain gun in the chin turret, Hellfire missiles (transitioning to JAGM) on the stub wings, 70mm Hydra-70 rockets, and the AH-64E Version 6 / Guardian modernization providing improved sensors, networking, weapons integration, and engine performance. The aircraft has flown intensively across Iraq, Afghanistan, Syria, and other operations across decades. The Apache battalions provide the attack-aviation contribution to combined-arms maneuver and the deep-strike capability against armor and other hard targets. The export footprint is large and ongoing; the UK, Netherlands, Israel, Japan, Korea, Egypt, Saudi Arabia, India, and other allies all operate Apache.

The US Navy amphibious assault ship class (LHA-6 USS America onward), designed for embarked-Marine-aviation-focused operations with extensive flight deck and hangar space, capable of operating F-35B Lightning II STOVL fighters, V-22 Osprey tiltrotors, CH-53K heavy lift, and other aircraft types — the lead ship and second hull omitted the well deck (Flight 0), with Flight I hulls (LHA-8 onward) restoring the well deck for LCAC operations alongside the aviation capability.

"The LHA-6 amphib class — F-35B/V-22 aviation focus, Flight I added well deck back."

America-class is the LHA class designed for Marine aviation — large flight deck capable of operating F-35B STOVL fighters as well as V-22 Osprey, CH-53K King Stallion, and MV-22B operations, with extensive hangar space and aviation maintenance capability. The lead ship USS America (LHA-6) and USS Tripoli (LHA-7) were built as Flight 0 — no well deck, all aviation focus — but the Marine Corps and Navy then decided to restore well deck capability for LCAC operations on Flight I (LHA-8 USS Bougainville onward). The class operates as the centerpiece of an Amphibious Ready Group / Expeditionary Strike Group, embarking a Marine Expeditionary Unit (MEU) with its associated air, ground, and logistics elements.

The US Army's replacement for the legacy M113 armored personnel carrier family — the AMPV family (BAE Systems prime, based on a turretless Bradley hull) comprises five mission-specific variants (M1283 General Purpose, M1284 Medical Evacuation, M1285 Medical Treatment, M1286 Mission Command, M1287 Mortar Carrier) — fielded across ABCTs replacing the M113 fleet that had been the legacy APC family since the 1960s.

"The AMPV — M113 replacement, Bradley-derived hull, five mission variants."

AMPV is the replacement for the M113 family that has been the workhorse APC of the Army since the early 1960s — BAE Systems-built, derived from a turretless Bradley hull, in five mission-specific variants covering general purpose troop carriage, medical evacuation, medical treatment, mission command, and mortar carriage. The fielding plan is across the ABCTs where M113 has been the principal supporting APC. The vehicle has tracked mobility comparable to Bradley and Abrams (so it can move with the heavy formations), enhanced protection over the legacy aluminum M113, and modernized mission systems. AMPV fielding is one of the major Army ground-vehicle modernization programs of the 2020s, alongside the XM30 MICV Bradley successor and the M10 Booker MPF.

The US Navy guided-missile destroyer class, the workhorse of the modern surface fleet — built across multiple "Flights" (Flight I/II are the legacy variants with limited differences, Flight IIA introduced in the late 1990s with a flight deck and helicopter hangar, Flight III introduced in the 2020s with the AN/SPY-6 AESA radar and enhanced AEGIS Baseline 10) — over 70 ships in service with continuing production at Bath Iron Works (Maine) and Huntington Ingalls Industries (Mississippi).

"The DDG-51 class — 70+ destroyers, Flight III with SPY-6 the modern production."

Arleigh Burke-class is the destroyer class that has become the entire modern Navy surface fleet — over 70 ships in service, continuing production at Bath Iron Works and HII Ingalls. The Flights matter operationally: Flight I (DDG-51 through DDG-78, the original 1990s production), Flight II (DDG-79 through DDG-84, minor improvements), Flight IIA (DDG-85 onward, added a flight deck and helicopter hangar for organic helicopter operations), and Flight III (DDG-125 USS Jack H. Lucas onward, the AN/SPY-6 AESA radar and AEGIS Baseline 10 providing dramatically improved BMD and air-defense capability). The class will continue in production through the 2030s while the DDG(X) future surface combatant is developed and brought into production. Every CSG and ESG has multiple Burkes.

A two-tier Israeli exo-atmospheric and upper-endo-atmospheric ballistic missile defense system — Arrow 2 (operational since 2000, upper-endo-atmospheric) and Arrow 3 (operational since 2017, exo-atmospheric) — developed by Israel Aerospace Industries (IAI) with Boeing as the US industrial partner, under US-Israel cooperative development — provides the upper layer of the Israeli integrated air and missile defense architecture, above David's Sling and Iron Dome — intended to intercept medium-range and longer-range ballistic missiles.

"Arrow — Israeli exo-atmospheric BMD, upper layer above David's Sling and Iron Dome."

Arrow 2 and Arrow 3 are the upper layer of the Israeli air and missile defense architecture — Arrow 2 (operational since 2000) handles upper-endo-atmospheric intercepts, Arrow 3 (operational since 2017) handles exo-atmospheric intercepts of longer-range ballistic missiles. The system was developed by Israel Aerospace Industries (IAI) with Boeing as the US industrial partner, under the US-Israel cooperative development framework that has been a fixture of US-Israel defense cooperation across multiple administrations. The combined Iron Dome / David's Sling / Arrow 2 / Arrow 3 architecture provides layered defense from short-range rocket and artillery threats up through medium- and longer-range ballistic missiles. For US Missile Defense Agency counterparts, Arrow is one of the deepest technical-cooperation relationships in the broader US BMD enterprise, with the cooperative funding and joint operational concept development a recurring element across administrations.

Air-to-surface missile (ASM) — a missile launched from an aircraft against a surface target (ground or naval), distinguished from air-to-air missiles by its intended target set and from cruise missiles by its tactical employment profile. Army Spectrum Manager (ASM) — the staff position responsible for electromagnetic spectrum management at echelons above brigade, coordinating frequency assignments, deconfliction, and spectrum-use requests through the Army Spectrum Management Office (ASMO).

"Either an air-to-surface missile, or the Army staff officer who runs spectrum management."

ASM has two meanings depending on the room you're in. To an aviator, ASM means air-to-surface missile — the AGM-114 Hellfire, AGM-65 Maverick, AGM-88 HARM/AARGM family, and the Joint Air-to-Surface Standoff Missile (JASSM) that hangs off F-15s, F-16s, F-35s, AH-64s, and MQ-9s. To a signal officer at corps or theater army, ASM is the Army Spectrum Manager — the staff position responsible for electromagnetic spectrum management in a complex theater where Patriots, SINCGARS, civilian cell networks, allied radios, and adversary jammers all share the spectrum. Context tells you which: "the ASM hit the target" is the missile; "the ASM is publishing the frequency plan" is the spectrum manager. Both meanings are in current joint doctrine.

A US joint-service shoulder-fired 84mm disposable single-shot anti-armor rocket launcher (Saab Bofors Dynamics AT4, designated AT-4 in US service), fielded across Army, Marine Corps, and SOF formations as the primary single-shot anti-armor system at the squad and platoon level — the launcher tube is disposed of after the single shot, distinguishing it from the reloadable M3 MAAWS.

"The 84mm disposable anti-tank rocket — every infantry soldier shoots one in training."

AT-4 is the disposable anti-armor rocket every infantry soldier shoots once in training and carries on combat patrols — single-shot, 84mm warhead, the launcher tube is dropped after the shot. The Swedish Saab AT4 origin shows in the controls and the manual of arms. In a rifle squad, the AT-4 is the squad's anti-armor option for the situation where the M3 MAAWS isn't available — lighter, simpler, single-shot. The CS variant (Confined Space) is designed for firing from inside buildings (the back-blast is reduced enough to make indoor firing survivable). Every Army and Marine infantry soldier has live-fired an AT-4 at some point in their training; the experience is memorable — the back-blast is significant, the report is loud, and the rocket leaves the tube very fast. In Ukraine, AT-4 has been one of the broadly transferred anti-armor weapons and has seen extensive operational use.

Articulated tug barge (ATB) — a maritime cargo configuration consisting of a tugboat mechanically coupled to a specially designed barge through a notched stern, operating as a single integrated unit for the transport of bulk liquids (petroleum, water) or dry cargo, used in some military sealift and prepositioning roles for coastal and intra-theater distribution.

"A tug-and-barge unit coupled to operate like a single ship — used in military sealift and intra-theater logistics."

ATB is a maritime configuration that pairs a powerful tugboat with a notch-stern barge in a way that lets them operate together as effectively one ship, with the crew on the tug providing propulsion and the barge providing the cargo hold. In commercial use, ATBs move petroleum and bulk along the US coast more cheaply than full ships; in military use, ATBs occasionally appear in Military Sealift Command intra-theater distribution, prepositioning support, and littoral logistics roles. To a mariner in MSC or a port operations officer planning sealift, ATBs are one option in a quiver that includes RO/RO ships, LMSRs, container ships, and dedicated tankers. The Dictionary lists the term because it appears in joint distribution doctrine; most service members will never encounter one in person.

The US Army HMMWV-mounted short-range air defense system (Avenger), fielded since 1990, carrying eight FIM-92 Stinger missiles and an M3P .50-caliber machine gun — designed to provide short-range air defense against helicopters, low-flying aircraft, cruise missiles, and (increasingly) UAS — being supplemented and replaced by the M-SHORAD Stryker-based system, with the Avenger fleet continuing in service across the Army National Guard.

"The legacy HMMWV-mounted Stinger SHORAD — Avenger, M-SHORAD is supplementing it."

Avenger is the legacy short-range air defense system the Army has operated since 1990 — HMMWV-mounted turret carrying eight FIM-92 Stinger missiles and an M3P .50-caliber machine gun. The vehicle gives air defense battalions mobile short-range air defense capability against helicopters, low-flying aircraft, cruise missiles, and (increasingly) the UAS threat that emerged operationally. Avenger is being supplemented and replaced by the Stryker-based M-SHORAD (covered in v42) in active-duty formations; Avenger continues in service across the Army National Guard air defense battalions and in some legacy roles. The platform has been continuously modernized to address evolving threats and remains operationally relevant.

Anti-Vehicle Land Mine (AVL) — a land mine designed to disable or destroy vehicles, typically armored fighting vehicles, trucks, and other tactical vehicles, distinguished from anti-personnel mines by larger explosive charge, higher activation pressure thresholds, and employment doctrine that focuses on mobility denial rather than personnel attrition; subject to international humanitarian law constraints on use, marking, and post-conflict clearance.

"A land mine designed to disable vehicles — bigger charge, higher pressure than an anti-personnel mine."

AVL is the doctrinal name for what an engineer or combat-arms soldier means when they say "AT mine" or "tank mine" — the bigger, heavier, vehicle-killing mines used for mobility denial, channelization, and force protection. Modern doctrine emphasizes scatterable mines (Volcano, RAAMS) and command-detonated systems over hand-emplaced fields, and US policy on anti-personnel mines has shifted significantly while AVLs remain a more permitted category under international humanitarian law. To a 12B combat engineer doing a turn-in at the ASP or laying a hasty obstacle, AVLs are the rounds and the systems that fill the breaching kit. To an EOD tech (89D), AVLs are part of the UXO and abandoned-ordnance threat picture downstream of any conflict.

The US Air Force airborne early warning and control system (E-3 Sentry, the Boeing 707-derived airframe with the distinctive rotodome housing the AN/APY-1/2 radar), fielded since 1977 with continuous modernization — providing long-range airborne surveillance, command and control, and battle management for joint and combined air operations — operated by the US Air Force (with E-3G Block 40/45 modernization), NATO (NAEW&C Force), UK, France, and Saudi Arabia.

"The AWACS — E-3 Sentry with the rotodome on top, airborne C2 platform."

E-3 Sentry AWACS is the airborne early warning and control aircraft the Air Force has operated since 1977 — Boeing 707 derivative with the distinctive 30-foot rotodome on top housing the AN/APY-series surveillance radar. The aircraft provides long-range air picture (tracking aircraft and cruise missiles at ranges beyond what ground radars cover), command and control of joint and combined air operations, and battle management functions across multi-aircraft engagement scenarios. The E-3G Block 40/45 modernization has improved the aircraft's capabilities but the airframe is aging; the E-7 Wedgetail is the planned successor (next entry). NATO operates a multinational AWACS force, the UK retired its E-3D in 2021 transitioning to E-7, and France and Saudi Arabia operate national AWACS fleets.

The US Air Force long-range heavy bomber (B-1B Lancer), fielded 1986, with approximately 45 operational airframes (declining as legacy hulls retire under congressional authorization) based at Ellsworth AFB (South Dakota) and Dyess AFB (Texas) — formerly nuclear-capable, de-nuclearized in 2007 under New START commitments and now exclusively conventional, providing heavy precision-strike payload capability — being replaced by B-21 beginning in the late 2020s.

"The B-1B — denuclearized 2007, heavy conventional bomber, being replaced by B-21."

B-1B is the heavy conventional bomber the Air Force has flown across the past four decades — variable-geometry wings, supersonic-capable at high altitude (rarely used operationally), large payload capacity, and a complex maintenance burden. The aircraft was originally nuclear-capable but was de-nuclearized in 2007 as part of New START treaty preparation and force-structure decisions; the B-1B has flown conventional strike across Iraq, Afghanistan, Syria, and other theaters since. The fleet is drawing down as B-21 enters service. Ellsworth AFB and Dyess AFB are the operating bases. The aircraft's operational tempo has been heavy enough to drive significant fatigue-life issues across the fleet.

The US Air Force long-range stealth strategic bomber (B-2 Spirit), Northrop Grumman prime, fielded 1997 — 21 aircraft built (20 operational after the 2008 loss of B-2 Spirit of Kansas) — operated from Whiteman AFB, Missouri, providing both conventional precision strike and nuclear delivery roles — being supplemented and eventually replaced by the B-21 Raider beginning in the late 2020s.

"The B-2 stealth bomber — Whiteman AFB, 20 aircraft, dual-capable."

B-2 Spirit is the stealth bomber that joined the Air Force inventory in the mid-1990s after one of the most expensive aircraft acquisition programs in history — 21 built (20 surviving after the 2008 loss of Spirit of Kansas), based at Whiteman AFB, providing both conventional precision strike (including bunker-buster GBU-57 MOP) and nuclear delivery. The B-2 has been a workhorse for global strike operations across multiple wars; the stealth characteristics give it credibility against modern air defenses that the older B-1B and B-52H cannot match. As B-21 enters service in the late 2020s, the B-2 fleet will be drawn down with the retirements completing through the 2030s.

The US Air Force next-generation long-range strike bomber (designated B-21 Raider), Northrop Grumman prime, designed to replace the B-1B Lancer and B-2 Spirit fleets and provide both conventional and nuclear delivery roles — first public rollout December 2022, first flight November 2023, with initial operational capability targeted for the mid-2020s and a planned production run of at least 100 aircraft.

"The next strategic bomber — B-1/B-2 successor, Northrop Grumman, first flight 2023."

B-21 is the bomber the Air Force is building to replace the B-1B Lancer and the B-2 Spirit — Northrop Grumman the prime (same lineage as B-2), with public rollout in December 2022 at Plant 42 in Palmdale, first flight in November 2023, and a planned production run of at least 100 aircraft. The program has been notably more disciplined than recent major Air Force acquisitions: under-budget (so far), on a credible schedule, and with a deliberate plan to introduce capability without overpromising. B-21 will be dual-capable (conventional and nuclear), inherit much of B-2's low-observable engineering, and be operationally deployed from Ellsworth AFB (South Dakota) and Whiteman AFB (Missouri) as B-1B and B-2 retire in the late 2020s and 2030s.

The US Air Force long-serving subsonic heavy bomber (B-52H Stratofortress), fielded 1961 and continuously modernized, with 76 operational airframes based at Barksdale AFB (Louisiana) and Minot AFB (North Dakota) — dual-capable (conventional and nuclear), the principal cruise-missile-carrying bomber (AGM-86 ALCM legacy, LRSO future) — undergoing the Commercial Engine Replacement Program (CERP) to re-engine the fleet with modern engines, with planned service life through the 2050s.

"The B-52 — 76 aircraft, dual-capable, re-engine program extending to the 2050s."

B-52H is the bomber that has outlived every successor program — fielded in 1961, continuously modernized, and now scheduled to serve through the 2050s with the Commercial Engine Replacement Program installing modern engines on the surviving 76 airframes. The B-52 is the principal cruise-missile carrier for the bomber leg of the nuclear triad (AGM-86 ALCM today, LRSO in the future) and provides massive conventional payload capability for non-stealth strike. Bases are Barksdale AFB and Minot AFB. The structural and electronic refresh has been continuous; the aircraft inheriting the airframe number is essentially a much-modernized 60-year-old design with the structural integrity to keep going. Crews refer to themselves as "BUFFs" (Big Ugly Fat Fellow, polite version) and the aircraft has its own substantial culture.

The US Air Force nuclear gravity bomb family (B61, multiple modifications Mod 3, Mod 4, Mod 7, Mod 11, with the consolidating B61-12 Life Extension Program variant), fielded across tactical fighter bombers (F-15E, F-35A in dual-capable role, allied DCA aircraft) and strategic bombers (B-2 Spirit, eventually B-21 Raider) — the B61-12 LEP completed first production unit in 2021 and consolidates the legacy variants under one design with variable yield and tail-kit precision guidance.

"The B61 gravity bomb family — B61-12 LEP modernization with variable yield."

B61 is the gravity-bomb side of the US nuclear arsenal — fielded across decades in multiple modifications (Mod 3, 4, 7, 11), now being consolidated under the B61-12 Life Extension Program (first production unit 2021) with variable yield (selectable, in the low-kiloton to higher-kiloton range) and tail-kit guidance for improved accuracy. The bomb is delivered by dual-capable aircraft in NATO sharing roles (Belgium, Germany, Italy, Netherlands, Türkiye historically host B61s on NATO bases under nuclear-sharing arrangements) and by US tactical and strategic bombers (F-15E, F-35A, B-2 Spirit, eventually B-21). The B61-12 modernization has been one of the more politically debated nuclear-warhead programs but the program has continued across administrations.

BeiDou Navigation Satellite System (BDS) — the People's Republic of China-operated global navigation satellite system (GNSS), declared globally operational in 2020, providing positioning, navigation, and timing services with global coverage and a regional short-message communication service over the Asia-Pacific, considered one of the four operational global GNSS constellations alongside GPS (US), GLONASS (Russia), and Galileo (EU).

"China's global navigation satellite system — the GPS-equivalent operated by the PRC."

BDS is the GNSS constellation US PNT planners watch closely — China's globally-operational competitor to GPS, fielded incrementally from the late 1990s and declared fully global in 2020 with a regional short-message text capability that GPS does not have. The military significance is twofold: BDS gives the PLA an independent PNT source that does not depend on US-controlled GPS signals (a strategic vulnerability the PRC explicitly addressed by building BDS), and it provides PNT to PRC partner states and proxies. To a US space operations officer at Space Force Delta 8 or a navigation warfare planner, BDS is a constant feature of the operational environment; to a soldier carrying a DAGR, BDS is the system the GPS constellation has to out-perform to stay the global standard. M-code, anti-jam antennas, and alternative PNT (APNT) work all live in the response space.

Base Expeditionary Airfield Resources (BEAR) — a US Air Force prepositioned set of modular shelters, power generation, water treatment, latrine and hygiene, kitchen, and supporting infrastructure designed to rapidly establish or expand an expeditionary airbase, sized in incremental capability packages (BEAR Base, BEAR Expand, etc.) to support different population and mission sets at austere airfields.

"The Air Force's modular expeditionary airbase kit — shelters, power, water, kitchens."

BEAR is the Air Force's kit that turns a runway and ramp into a livable, workable airbase — the prepositioned set of tents, generators, water purification, kitchens, latrines, and supporting infrastructure that a Contingency Response or Prime BEEF team unrolls when they open an airfield under ABO doctrine. The kit comes in incremental sizes (BEAR Base for the initial 550-person slice, BEAR Expand for follow-on capacity), and what makes it BEAR rather than just "tents" is the integrated power, water, and life-support architecture. To a Prime BEEF airman (engineering, civil engineer career fields), BEAR is the equipment they train on and unrolling it is the job; to the aviator landing at the field, BEAR is the reason there's a place to sleep and eat that night. Pairs naturally with ABO, ABFDS, and CR forces.

A FLIR/Teledyne nano-scale unmanned aircraft system weighing approximately 33 grams (with the Black Hornet 3 generation; newer variants are larger but still very small), providing electro-optical and infrared imaging to the individual soldier at ranges to ~2 km — the smallest UAS in widespread military service, fielded for squad and individual reconnaissance roles.

"The pocket-size soldier-carried nano UAS."

Black Hornet is the UAS small enough that an individual soldier carries it — a system that fits in a pocket-size case, weighs less than a candy bar, and flies a stabilized helicopter platform with EO and IR sensors. The use case is the immediate organic look — what's around the corner of this building, what's on the other side of this hedge, who's in this window. Range and endurance are limited by the form factor (around 2 km, 25 minutes), but the immediacy and the trivial training burden make it valuable at the lowest tactical level. The PRS (Personal Reconnaissance System) program of record fielded Black Hornet broadly across the joint force.

An 8x8 wheeled multi-role armoured vehicle developed jointly by Germany and the Netherlands through the ARTEC consortium (Rheinmetall and KNDS Deutschland) — modular design with mission-module variants including APC, command, ambulance, repair, recovery, and combat configurations — in service with the Heer, the Royal Netherlands Army, the British Army (Mechanised Infantry Vehicle program), the Australian Army (CRV / IFV programs), Lithuania, and other export customers.

"Boxer 8x8 — German-Dutch multi-role wheeled APC (ARTEC), modular mission modules, multiple NATO operators."

The Boxer is the Heer's 8x8 wheeled multi-role armoured vehicle — a German-Dutch joint development through the ARTEC consortium (Rheinmetall and KNDS Deutschland) with a distinctive modular design that allows mission-module swaps on the same drive-module base. Mission modules include APC, command, ambulance, repair, recovery, and combat variants. For a US Army partner, the Boxer is the closest European counterpart to the Stryker in the 8x8 wheeled APC role, with the modular-design feature giving the platform a different operational philosophy than the Stryker's single-configuration approach. The export footprint is substantial: the Boxer is in service with the Heer, the Royal Netherlands Army, the British Army (as the Mechanised Infantry Vehicle), the Australian Army (CRV / IFV programs), Lithuania, and other customers — making it one of the most widely-fielded Western wheeled platforms of the post-2010 generation.

The US Army infantry and cavalry fighting vehicle family — the M2 Bradley (infantry fighting vehicle, carrying a six-soldier dismount team) and the M3 Bradley (cavalry fighting vehicle, carrying scouts), 25mm Bushmaster cannon, TOW missile launcher, in service since the 1980s with multiple modernization programs (M2A2 ODS, M2A3, M2A4) and a planned successor (XM30 Mechanized Infantry Combat Vehicle).

"The Army IFV — infantry dismounts plus 25mm cannon and TOW."

Bradley is the Army's infantry fighting vehicle (M2) and cavalry fighting vehicle (M3) — tracked, armored, carrying a dismount team or scouts plus the 25mm Bushmaster chain gun and a TOW missile launcher. Modernization variants (A2, A3, A4) have continuously updated the platform; the XM30 Mechanized Infantry Combat Vehicle program is the planned successor (the program restart followed the cancellation of the earlier OMFV program). Bradley is the workhorse of Armored Brigade Combat Teams alongside Abrams; the combination of dismounted infantry plus armored mobility plus credible firepower defines the ABCT formation. Bradley transfers to Ukraine have been significant in the war.

The US Air Force, allied air force, and FMS four-engine turboprop tactical airlifter family (C-130 Hercules, current production C-130J Super Hercules), Lockheed Martin prime, fielded since 1956 across more than 70 nations with multiple variants including basic airlift (C-130J/H/E), special operations (MC-130 Combat Talon and Combat Shadow), gunship (AC-130W/J Ghostrider), refueling (KC-130J for Marine Corps), search and rescue (HC-130J), weather reconnaissance (WC-130J), and specialty roles — the most produced military transport in history.

"The C-130 family — tactical airlifter, gunship variants, search/rescue, more."

C-130 Hercules is the most produced military transport in history and the family with the most operational variants in joint and allied service — basic airlift (C-130J Super Hercules current production, plus extensive H-model and earlier variants still in service), MC-130 special operations variants for the SOF community, AC-130 gunship variants (the J-model Ghostrider current), KC-130J Marine Corps refueling tankers, HC-130J combat search and rescue, WC-130J weather reconnaissance, and many specialty variants. The aircraft is operated by more than 70 nations. The production line has been running for nearly seven decades with continuous modernization; the C-130J Super Hercules is the current production variant and represents a significantly modernized aircraft over the legacy H-models.

The US Air Force four-engine strategic-tactical heavy airlifter (C-17 Globemaster III), McDonnell Douglas/Boeing prime, fielded since 1995 with 223 US Air Force aircraft plus FMS deliveries (UK, Australia, Canada, India, Qatar, Kuwait, UAE, NATO HAW pool) — production line closed in 2015 — the principal joint heavy airlift platform, capable of strategic intercontinental missions and tactical short-field operations.

"The Globemaster III — heavy airlift, production closed, 223 USAF aircraft."

C-17 Globemaster III is the joint force's heavy airlifter — strategic intercontinental range (the aircraft can move 170,000+ pounds of cargo across the Pacific without refueling), tactical short-field capability (operates from improvised airfields rather than requiring full commercial runways), and the cargo volume to carry M1 Abrams tanks, helicopters, and large palletized loads. The fleet of 223 US Air Force aircraft plus the international operators (UK, Australia, Canada, India, NATO Heavy Airlift Wing pool, others) was finalized when Boeing closed the production line in 2015; the fleet is now a closed strategic asset like the F-22. The aircraft has flown intensively across decades of operations and is the principal mover of major equipment and forces.

A class of two Royal Australian Navy amphibious assault ships — HMAS Canberra (L02) and HMAS Adelaide (L01) — commissioned 2014 and 2015 respectively — derived from the Spanish Juan Carlos I design, built in partnership between Navantia (Spain) and BAE Systems Australia — displacement approximately 27,500 tonnes, providing the RAN with brigade-sized amphibious lift, helicopter operations, and well-deck capability.

"Canberra-class — RAN LHDs (HMAS Canberra + HMAS Adelaide), ~27,500 tonnes, Spanish Juan Carlos design."

The Canberra-class LHDs are the RAN's amphibious capability — two ships (HMAS Canberra and HMAS Adelaide), derived from the Spanish Juan Carlos I design and built in a Navantia-BAE Systems Australia partnership, commissioned 2014-2015. The class provides the RAN with brigade-sized amphibious lift, helicopter operations, and well-deck capability — a significant generational upgrade from the previous LPA-based amphibious force. For a US Navy partner, the Canberra-class is broadly analogous to the US Wasp-class or America-class LHDs in mission set, though smaller and without the F-35B integration the US LHA/LHD fleet provides (Australia's ramp configuration was assessed for STOVL operations but has not been pursued operationally). The ships are central to ADF amphibious doctrine and to combined US-Australian amphibious exercises in the Indo-Pacific.

The Marina Militare's STOVL (short take-off and vertical landing) aircraft carrier — commissioned 2008, modified during 2020-2021 to embark and operate the F-35B Lightning II — flagship of the Italian fleet, formally designated ITS (Italian Ship) Cavour pennant number C 550 — carries an air group of Italian F-35B Lightning II aircraft (with prior service of the AV-8B Harrier II) — based at Taranto on the Ionian coast.

"ITS Cavour (C 550) — Italian STOVL carrier (2008), F-35B-modified 2020-2021, replaced Harrier with Lightning II."

ITS Cavour (C 550) is the Marina Militare's aircraft carrier — a STOVL flat-deck design commissioned 2008, originally fielded as a Harrier-operating carrier and modified during 2020-2021 to embark and operate the F-35B Lightning II. Based at Taranto on the Ionian coast. For a US Navy partner, the closest analogue is a US amphibious assault ship (LHA / LHD) operating F-35B in the sea-control configuration — Cavour is the size and operational concept of a US amphib running fixed-wing rather than a Nimitz/Ford-class supercarrier, and the operational doctrine of the Italian carrier is built around the STOVL air wing accordingly. The transition from the AV-8B Harrier II to the F-35B was a major Marina Militare modernisation milestone and gave Italy a stealth carrier-air capability that few European partners match. Cavour conducted a 2021 deployment to the United States for F-35B sea-trial qualifications with US Marine Corps F-35Bs cross-decked.

The Royal Canadian Air Force's current combat air fighter — the Canadian designation for the F/A-18A/B Hornet acquired in the 1980s as the New Fighter Aircraft Programme — currently operated as the CF-188 in formal designation, with the CF-18 designation in common usage — operated at CFB Cold Lake in Alberta (4 Wing) and CFB Bagotville in Quebec (3 Wing) — has undergone successive Incremental Modernization Project upgrades to extend service life pending F-35A replacement.

"CF-18 — RCAF current fighter, F/A-18 Hornet, Cold Lake + Bagotville, F-35A replacement underway."

The CF-18 is the RCAF's current combat air fighter — the Canadian designation for the F/A-18A/B Hornet acquired in the 1980s under the New Fighter Aircraft Programme, formally designated CF-188 but commonly called the CF-18. The fleet is based at CFB Cold Lake in Alberta (home of 4 Wing) and CFB Bagotville in Quebec (home of 3 Wing), with detachments forward-deployed for NORAD alert commitments and NATO deployments. The aircraft has undergone successive Incremental Modernization Project upgrades to extend service life pending the F-35A replacement. For a US Air Force partner operating with RCAF Hornets — particularly through NORAD alert operations and combined exercises — the CF-18 community is one of the most operationally familiar coalition counterparts; the airframe and combat systems are derivative-compatible with the broader F/A-18 Hornet community across the US Marine Corps and the now-retired US Navy F/A-18 legacy fleet.

Causeway Ferry Power Module (CFPM) — a Navy and Marine Corps amphibious logistics-over-the-shore (LOTS) component that provides propulsion to a causeway ferry built from modular Improved Navy Lighterage System (INLS) sections; integrated into Naval Beach Group and Naval Construction Force units that conduct joint logistics-over-the-shore operations from amphibious shipping to a bare beach.

"The powered Navy lighterage module that pushes a causeway ferry from ship to bare beach."

CFPM is one of the unglamorous but absolutely-load-bearing pieces of amphibious logistics — the powered module that connects to Improved Navy Lighterage System sections to form a causeway ferry capable of moving rolling stock and cargo from an amphibious ship anchored offshore to a bare beach with no port. Naval Beach Group sailors and Seabees in the Naval Construction Force operate the systems; the broader Joint Logistics Over The Shore (JLOTS) capability depends on it. To a watch officer running a CLF or to an amphibious operation planner, the CFPM is the platform that decides how fast a ship-to-shore movement can actually happen in a no-port scenario — which, in much of the Indo-Pacific theater, is exactly the scenario that matters. The capability fell off in visibility after OIF/OEF and has come back into focus with the renewed emphasis on contested logistics.

The US Army tandem-rotor heavy-lift cargo helicopter (CH-47 Chinook, current Block II configuration with continuing modernization), Boeing prime, fielded since 1962 with extensive variant evolution through CH-47A/B/C/D/F/Block II — approximately 470 active US Army CH-47F airframes plus extensive FMS service across multiple allied operators (UK, Spain, Italy, Greece, Netherlands, Australia, Japan, Korea, Saudi Arabia among others) — the principal joint heavy-lift cargo helicopter.

"The CH-47 Chinook — tandem-rotor heavy-lift helicopter, Block II modernization ongoing."

CH-47 Chinook is the tandem-rotor helicopter that has been the principal joint heavy-lift cargo helicopter for sixty years — two large rotors (front and rear), large internal cargo volume, two side-mounted M134 miniguns and a rear ramp gun, and the lifting capacity to carry M777 howitzers, HMMWVs, troops, palletized cargo, and external sling loads of significant weight. The CH-47F is the current US Army variant; the Block II modernization expands the airframe's gross weight capacity and modernizes the drive system. Foreign Military Sales is significant; the aircraft is operated by major NATO partners and other allies worldwide. The "Hook" community in Army aviation has its own substantial culture and is the principal heavy-lift capability for air assault and broader Army aviation operations.

The US Marine Corps heavy-lift helicopter (CH-53K King Stallion), Sikorsky prime, designed to replace the legacy CH-53E Super Stallion — three-engine, capable of carrying 27,000+ pounds external lift (significantly more than CH-53E's ~16,000 pounds capability), fielded since 2021 with continuing production — provides the Marine Corps heavy-lift aviation capability and the only joint heavy-lift rotary-wing platform.

"The CH-53K King Stallion — heavy lift, 27,000+ lb external, replaces CH-53E."

CH-53K is the Marine Corps heavy-lift helicopter replacing the legacy CH-53E Super Stallion — Sikorsky-built, three-engine, with 27,000+ pound external lift capacity (significantly more than the CH-53E's ~16,000-pound capability), enabling carriage of M777 howitzer, JLTV, and other heavy loads. The aircraft entered service 2021 after a long development cycle; production is continuing across the late 2020s. The King Stallion is the only true joint heavy-lift helicopter in current US service — the Army's CH-47 Chinook is heavy-lift but with lower capacity. The aircraft is part of the Marine Corps's aviation modernization alongside F-35B and V-22, and is essential for supporting MAGTF operations including the heavy-lift requirements of Force Design 2030 distributed operations.

The Marine Nationale's nuclear-powered aircraft carrier — commissioned 2001, in continuous service since — the only nuclear-powered aircraft carrier operated by any navy other than the US Navy — carries an air wing built around Rafale Marine multi-role fighters, E-2C Hawkeye airborne early warning aircraft, and rotary-wing assets — formally designated FNS (or FS) Charles de Gaulle (R 91) — flagship of the French Naval Forces and a strategic asset of national-level significance.

"Charles de Gaulle (R 91) — French nuclear carrier (2001), Rafale Marine + E-2C, only non-US nuclear CVN."

Charles de Gaulle (R 91) is the Marine Nationale's nuclear-powered aircraft carrier — the only nuclear carrier in service outside the US Navy. Commissioned 2001, the carrier has been in continuous service since, with periodic mid-life refits including a 2017-2018 major refuel-and-overhaul. The air wing is built around Rafale Marine multi-role fighters (the carrier-capable variant of the Rafale), E-2C Hawkeye airborne early warning aircraft (French Hawkeyes, distinct from US Navy E-2D variants), and rotary-wing assets including Caïman (NH90) and Dauphin. For a US Navy partner, Charles de Gaulle is the closest international counterpart to a Nimitz/Ford-class carrier — much smaller scale (single ship, smaller air wing) but with the operational and doctrinal sophistication that comes from running carrier strike continuously. The French nuclear-carrier successor (Porte-Avions de Nouvelle Génération / PA-NG) is in development for delivery in the late 2030s.

Cargo-Handling Equipment / Container-Handling Equipment (CHE) — the family of materials-handling equipment used in joint cargo operations including forklifts (variable-reach 6K, 10K, 50K), tactical container handlers (Kalmar and similar), rough-terrain container handlers (RTCH), and stevedoring equipment; operated by Army transportation, Navy cargo-handling battalions, Air Force aerial port squadrons, and Marine landing support specialists.

"The forklifts, container handlers, and stevedore gear that move cargo at ports and APODs."

CHE is the unglamorous fleet of forklifts, container handlers, and stevedoring equipment that makes the whole joint logistics enterprise actually work — the 10K all-terrain forklift, the 50K rough-terrain forklift, the Kalmar tactical container handler, the Rough Terrain Container Handler (RTCH), the various pallet jacks and material-handling equipment. The Army's transportation companies, the Navy's Cargo-Handling Battalions, the Air Force's aerial port squadrons, and the Marine Corps' landing support specialists all operate CHE. To an 88M (Army motor transport), a Navy ABE/BM cargo handler, an Air Force 2T (port operations specialist), or a Marine 0481 (landing support specialist), CHE qualification is a long list of operator licenses; the forklift license itself is a recurring rotation through certification and currency. The forklift is the most operationally important piece of equipment most service members will never write home about.

The Royal Australian Navy's diesel-electric attack submarine force — six boats (HMAS Collins, Farncomb, Waller, Dechaineux, Sheean, and Rankin) — designed by the Swedish firm Kockums (now Saab Kockums) and built by ASC at Osborne, South Australia in the 1990s — based at HMAS Stirling near Perth, Western Australia — provides Australia's current submarine capability pending the AUKUS Pillar I transition to nuclear-powered submarines.

"Collins-class — RAN diesel-electric submarines, 6 boats, HMAS Stirling Perth, Swedish-designed."

The Collins-class are the RAN's current submarine force — six diesel-electric boats (Collins, Farncomb, Waller, Dechaineux, Sheean, Rankin), Swedish-designed by Kockums and built by ASC at Osborne in South Australia in the 1990s, based at HMAS Stirling on Garden Island near Perth. The class had a difficult early operational history (well-documented engineering and noise issues in the early years) but has matured into a capable conventional submarine force, with sustained operations across the Indo-Pacific. The AUKUS Pillar I programme is the future replacement — interim Virginia-class transfers from the US Navy followed by the longer-term SSN-AUKUS class developed with the UK. For US Navy submarine partners, HMAS Stirling has become an increasingly important working interface as the AUKUS industrial and operational integration accelerates through the 2020s.

The US Navy's next-generation ballistic-missile submarine class, designed to replace the Ohio-class SSBN as the sea-based leg of the US nuclear triad — General Dynamics Electric Boat prime, with 12 hulls planned (first hull USS District of Columbia SSBN-826 under construction), each with 16 Trident II D5LE SLBM tubes — initial operational deployment planned for the early 2030s, with first deterrent patrol targeted around 2031.

"The Ohio-class successor — 12 SSBNs, 16 missile tubes each, first patrol around 2031."

Columbia-class is the Ohio-class successor — the program of record for the next generation of SSBN that will carry the sea-based leg of the nuclear triad through the second half of the 21st century. The class is smaller in tube count (16 vs Ohio's 20 post-New START) but the overall SSBN force will maintain the same deployable SLBM count because the 12 Columbia-class hulls match the at-sea availability of the Ohio-class fleet more efficiently. General Dynamics Electric Boat is the prime; the lead hull USS District of Columbia (SSBN-826) is under construction with first patrol planned around 2031. The program has been protected from cuts across multiple budget cycles because the strategic risk of a sea-leg gap is unacceptable to any administration.

The US Navy next-generation guided-missile frigate class, FFG-62 USS Constellation as the lead ship under construction at Fincantieri Marinette Marine (Wisconsin) — derived from the Italian-French FREMM frigate design with significant US modifications — designed to fill the gap between the small Littoral Combat Ships and the larger Arleigh Burke destroyers, with 32 Mk 41 VLS cells and reduced manning compared to a Burke — initial deliveries delayed into the late 2020s due to design changes and production challenges.

"The new frigate — FFG-62 USS Constellation, FREMM-derived, Mk 41 VLS."

Constellation-class is the new frigate the Navy is building to fill the small-combatant gap that LCS didn't solve — 32 Mk 41 VLS cells, AEGIS combat system, the AN/SPY-6 radar (the same AESA used on Flight III Burkes), and reduced manning compared to a Burke. The design is derived from the Italian-French FREMM (European Multi-Mission Frigate) with significant US modifications. The lead ship FFG-62 USS Constellation is under construction at Fincantieri Marinette Marine in Wisconsin with delivery delayed several years due to design changes and production challenges. The class is intended to extend the Navy's small-combatant capacity at a lower cost than additional Burkes; whether the program achieves the cost and schedule targets that justify it is a major fleet-structure question.

Commercial off-the-shelf — products and services available in the commercial marketplace that can be procured by the Department of Defense without modification or with minor adaptation, in contrast to developmental items requiring custom design and engineering — a contracting and acquisition category emphasized in DoD acquisition policy as a means of reducing cost, schedule, and technical risk.

"COTS — commercial products procured without custom development."

COTS is the acquisition category for products and services already available in the commercial marketplace that DoD can procure without custom development — laptops, network equipment, vehicles, software, and the long list of items where commercial industry has already solved the technical problem. The COTS emphasis in DoD acquisition policy (FAR Part 12 Commercial Item Acquisition, the broader push toward Other Transaction Authorities and middle-tier acquisition pathways) is meant to reduce cost, schedule, and technical risk compared to traditional DoD developmental acquisition. The reality is more complicated: COTS items often need significant integration work to meet DoD security, ruggedization, and interoperability requirements; pure COTS without modification is rare in operationally-deployed contexts. The COTS-vs-developmental decision is one of the foundational acquisition policy debates and has played out across many programs.

A US Raytheon-developed small unmanned aircraft system, used as both a UAS-as-effector (the Coyote Block 2 and Block 3 interceptor variants for kinetic c-sUAS engagement) and as a sensor/decoy platform — the Coyote interceptor is fielded as part of M-LIDS, FS-LIDS, and emerging counter-UAS systems for kinetic engagement of threat small UAS.

"The kinetic c-sUAS interceptor — Coyote Block 2/3 in M-LIDS and FS-LIDS."

Coyote is both a UAS (the platform Raytheon developed originally as a swarm-capable expendable sensor) and a c-UAS interceptor (Block 2 and Block 3 variants designed to engage threat small UAS kinetically). In the c-sUAS architecture, Coyote is the kinetic effector that complements RF jamming and gun systems — it gets fired when the threat needs to be physically destroyed rather than disabled. M-LIDS, FS-LIDS, and several emerging c-sUAS programs integrate Coyote interceptors as part of their effector chain. The dual-use airframe history (UAS or interceptor) reflects the broader convergence of UAS and c-UAS technology.

The Royal Canadian Navy's future surface combatant programme — a derivative of the UK BAE Systems Type 26 City-class frigate design, adapted for Canadian requirements — intended as the replacement for both the Halifax-class frigates and the previously retired Iroquois-class destroyers, with up to fifteen ships planned to provide both general-purpose frigate and area-air-defence capabilities — first ship of class anticipated to enter service in the 2030s.

"CSC — RCN future surface combatant, Type 26 derivative, up to 15 ships planned for 2030s."

The Canadian Surface Combatant (CSC) is the RCN's future surface combatant programme — a Type 26 derivative (the same UK-designed parent hull as the British City-class and the Australian Hunter-class), with up to fifteen ships planned to replace the Halifax-class frigates and the previously retired Iroquois-class destroyers. The class is intended to provide both general-purpose frigate capability and area-air-defence capability, with first ship of class anticipated to enter service in the 2030s. The programme has been politically contested across administrations on cost and timeline, with the per-ship cost being a recurring topic in Parliamentary scrutiny. For a US Navy partner, the CSC will join the Type 26 family alongside UK and Australian variants — a three-nation interoperability community in the making, with common combat system architectures and tactical doctrine.

Per the DoD Dictionary, causeway section, nonpowered — a modular floating pontoon section, part of the Joint Logistics Over-the-Shore (JLOTS) Modular Causeway System, that can be linked with other sections and powered modules to form floating piers, ferries, and roll-on/roll-off discharge facilities at unimproved beach sites in the absence of a fixed port.

"A pontoon causeway section — used in JLOTS to land cargo on an undeveloped beach."

CSNP is one of the standard pontoon building blocks of the JLOTS architecture — the floating-pier system the joint force assembles to land vehicles and cargo at a beach when there's no port available. Army Transportation Corps watercraft units and Navy NBG / Naval Construction Battalion sailors do the actual assembly, working in protected anchorages and then towing the assembled causeway and roll-on/roll-off discharge facility inshore. The work is hard and weather-dependent; sea states above about 3 feet make assembly very difficult. CSNPs link with powered sections (CSPs, warping tugs) to form ferries and floating piers. The recent JLOTS operation off Gaza in 2024 was a high-visibility — and highly criticized — application of this capability.

Per the DoD Dictionary, coordinate-seeking weapons — weapons that guide to pre-programmed geographic coordinates (latitude/longitude/elevation) rather than to a sensed target signature, including GPS/INS-guided munitions such as JDAM, GBU-31/32/38, GBU-39 SDB, JSOW, and a range of cruise missiles and standoff weapons.

"CSW — weapons that fly to coordinates, not to a target signature. JDAM, SDB, JASSM."

CSW is the joint targeting term that distinguishes "we drop on these grid coordinates" weapons (JDAM, JSOW, JASSM, SDB, Tomahawk on a coordinate-only profile) from sensor-seeking weapons that track a laser spot, IR signature, or radar return. The practical difference matters in the targeting cycle: a coordinate-seeking weapon needs precise, validated, recently-confirmed coordinates and an accurate target-mensuration package, plus collateral damage estimation against a fixed point. For the weaponeer at the AOC, "CSW vs sensor-seeking" is one of the first questions in selecting the right weapon for a target. The proliferation of cheap GPS-guided munitions across the past two decades is one of the big stories in air-delivered firepower.

A floating modular pier system installed offshore to enable amphibious or expeditionary logistics over-the-shore (LOTS / JLOTS) operations, providing a temporary roll-on / roll-off and lift-on / lift-off interface between vessels offshore and the beach where no fixed port exists or where a port is denied or damaged — operated by Army Transportation watercraft units, Navy Beach Group elements, and joint LOTS organizations.

"A causeway pier — the floating temporary pier that supports JLOTS amphibious logistics."

CWP is one of the modular pier components in the JLOTS toolkit — a floating, sectional pier system installed offshore to provide a temporary interface between offload vessels and the beach when no fixed port is available. Army Transportation watercraft units (the 7th Transportation Brigade and subordinate units) and Navy Beach Group elements operate the broader JLOTS system; CWP is one of the major hardware pieces alongside the Modular Causeway System (MCS), Roll-On/Roll-Off Discharge Facility (RRDF), and Lighter, Amphibious Resupply, Cargo (LARC) family. The Gaza pier installation of 2024 was the most visible recent JLOTS execution; the operation revealed both the capability and the limits of the system in moderate sea states. JLOTS is one of the higher-skill, lower-visibility specialties in joint logistics.

An Israeli medium-range air and missile defense system — developed jointly by Rafael Advanced Defense Systems and Raytheon under US-Israel cooperative development — operational with the Israeli Air Force since 2017 — designed to intercept medium-range ballistic missiles, large-caliber rockets, cruise missiles, and aircraft at altitudes and ranges above Iron Dome and below the Arrow exo-atmospheric system — uses the Stunner interceptor with dual-mode (RF and EO) seeker.

"David's Sling — Israeli medium-range air/missile defense, Stunner interceptor."

David's Sling is the middle layer of the Israeli air and missile defense architecture — above Iron Dome (short-range rockets and artillery), below Arrow (exo-atmospheric ballistic missile defense). The system was developed jointly by Rafael Advanced Defense Systems and Raytheon under the US-Israel cooperative development arrangement, operational with the IAF since 2017. The interceptor is the Stunner, with a dual-mode (RF and EO) seeker designed for terminal-phase intercept of medium-range ballistic missiles, large rockets, cruise missiles, and aircraft. The integrated Israeli air defense picture — Iron Dome, David's Sling, Arrow 2, Arrow 3 — gives the IDF one of the more layered air and missile defense architectures in any allied military, with extensive US cooperative development and procurement funding supporting the program over multiple administrations. For US Army air and missile defense counterparts, David's Sling is a partner-system relationship with technical-exchange content.

The category of NATO member-nation tactical aircraft certified to deliver US nuclear weapons under NATO nuclear sharing arrangements — currently includes selected F-16 and Tornado fleets in host nations (Belgium, Germany, Italy, Netherlands, Turkey under varying arrangements), with the F-35A replacing legacy DCA aircraft in host nations transitioning to the fifth-generation fighter — the host-nation aircraft are flown by host-nation pilots, with US custody of the weapons themselves under bilateral arrangements.

"NATO Dual Capable Aircraft — host-nation jets certified for US nuclear weapons sharing."

DCA is the category of NATO member-nation tactical aircraft certified under NATO nuclear sharing to deliver US-provided B61 gravity bombs from forward-deployed US stockpiles in Europe — the operational embodiment of NATO nuclear sharing. Host nations historically have included Belgium, Germany, Italy, Netherlands, and Turkey under varying arrangements; the aircraft involved have been F-16 and Tornado fleets and are transitioning to F-35A as host nations modernize. The pilots are host-nation pilots; the weapons are US-custody until release authority is given. The B61-12 modernization of the gravity-bomb stockpile is the current capability baseline. NATO nuclear sharing has been politically contested at various points and remains a sensitive topic in some host nations; the political and military importance to extended deterrence is one of the Alliance's enduring features.

The US Navy future-surface-combatant program intended to replace Ticonderoga-class cruisers and supplement Arleigh Burke-class destroyers — designed to provide larger hull, greater electrical power generation for future directed-energy weapons and hypersonic launchers, increased VLS cell capacity, and modernized systems — first hull construction targeted for the late 2020s with the program structure and selection still being finalized.

"The future large surface combatant — CG-class successor, more power for DE weapons."

DDG(X) is the future-surface-combatant program that's supposed to address what the Ticonderoga-class CGs leave when they retire and what the Burke design constraints limit — larger hull capable of generating more electrical power (for directed-energy weapons, lasers, and the new hypersonic launchers the Navy is fielding), greater Mk 41 VLS cell capacity (or the larger-cell Mk 57 successor), and modernized AEGIS combat systems. The program has been in development with first hull construction targeted for the late 2020s; the design selection and production approach are still being finalized. The fleet-structure trade-off (more Burkes vs DDG(X) vs more frigates) is one of the principal Navy structure debates of the current decade.

A chemical and biological agent collection device that draws ambient air through a filter cartridge, capturing airborne particulate and aerosol agents on the filter media for subsequent laboratory analysis — used in fixed CBRN sensor architectures (Joint Biological Standoff Detection System support, BioWatch installations, base defense CBRN sensors) and in deployable CBRN collection sets to identify the presence of biological warfare agents in a sampled airspace.

"DFU — the filter-based air sampler that catches biological agents for lab analysis."

DFU is the unglamorous workhorse of biological agent detection — a fan, a filter, and a power supply that draws ambient air through a collection cartridge for hours or days, then hands the cartridge to a lab for PCR or culture-based analysis to identify whether a biological warfare agent (anthrax spores, plague bacilli, ricin particulates) is present in the sampled airspace. Compared to real-time biological detectors, DFUs are slow (you don't get an answer until the filter is collected and analyzed) but sensitive and definitive in a way that real-time detectors typically aren't. The capability lives in fixed installation CBRN sensor networks (including the interagency BioWatch program), in deployable CBRN reconnaissance sets, and in some allied architectures. For CBRN soldiers, DFUs are part of the standing collection layer that operates whether or not anyone is paying attention.

A maritime navigation digital product, produced by the National Geospatial-Intelligence Agency (NGA) and distributed to US and allied military maritime users, providing a globally-consistent vector-based chart database supporting electronic chart display and information systems (ECDIS), navigation system inputs, and mission planning for surface ships, submarines, and amphibious operations.

"DNC — NGA's digital nautical chart product feeding Navy ECDIS and mission planning."

DNC is the digital nautical chart product that the Navy's surface ships and submarines actually navigate from in the modern fleet — NGA produces it, distributes it to the fleet on a structured update cycle, and the data feeds the ECDIS-N (Electronic Chart Display and Information System – Navy) and the older Voyage Management System. The vector data lets the navigation system do things paper charts can't — automatic safety contour alerting, route-checking against shoal water, integration with AIS contact tracks. For the quartermaster or operations specialist standing watch on a bridge, DNC is the chart on the screen; for the navigator, it is also the source of truth that the Navy's electronic navigation safety certification process points at. The product is one of the foundational NGA outputs to the maritime services.

A US Battelle handheld counter-small-UAS radio-frequency jammer, one of the earlier widely-fielded handheld c-sUAS effectors, used to interrupt command, control, GPS, and video links of Group 1-3 unmanned aircraft systems — fielded across joint and federal protective contexts as part of the layered c-sUAS toolkit.

"The handheld RF jammer for small UAS — Battelle's c-sUAS effector."

Drone Defender is one of the original handheld c-sUAS jammers, fielded earlier in the c-sUAS transition than DroneBuster but in the same category — handheld, RF-emission-based, aimed at interrupting the threat UAS's control and navigation. The category is now crowded (multiple manufacturers, multiple Block variants, multiple form factors) and individual systems have specific capabilities. For c-sUAS planning, Drone Defender is part of the inventory mix; some sites and missions standardized on Drone Defender, others on DroneBuster, others on alternatives.

A US Flex Force Enterprises handheld counter-small-UAS radio-frequency jammer (multiple Block variants), used by joint and allied forces for defeating Group 1-3 unmanned aircraft systems by jamming the control link, GPS, or video downlink — fielded broadly across the joint force as one element of the layered c-sUAS defense.

"The handheld RF jammer for defeating small UAS."

DroneBuster is the handheld c-sUAS effector — a rifle-shaped jammer aimed at the threat UAS that interrupts the control link, GPS guidance, and/or video downlink, causing the UAS to lose control, return to launch, or simply fall. The system is meant to be carried and operated by individual service members at fixed sites and on patrol. Effectiveness depends on the threat UAS's autonomy and link characteristics — increasingly autonomous threat UAS are harder to jam. DroneBuster sits alongside Drone Defender and other RF-jamming options in the joint c-sUAS toolkit.

A standardized National Geospatial-Intelligence Agency raster geospatial data product representing terrain elevation as a grid of height values at fixed spacing — produced at multiple levels of resolution (Level 0 approximately 1 km post spacing, Level 1 approximately 90 m, Level 2 approximately 30 m, with higher resolutions for specific areas) — the foundational elevation layer underneath mission planning systems, flight simulators, terrain analysis, line-of-sight calculations, and weapon-system trajectory modeling across the joint force.

"DTED — the standard digital elevation data that every mission planning system runs on."

DTED is the elevation grid underneath everything — flight planning systems, terrain analysis tools, line-of-sight calculations for radio comms and direct-fire weapons, weapon-system trajectory models, simulator terrain databases. NGA produces it at multiple levels (Level 0 the coarsest at about 1 km spacing, Level 1 around 90 m, Level 2 around 30 m, with higher-resolution coverage for areas of operational interest). For most operators DTED is invisible infrastructure — the planner pulls up the route or the engagement and the elevation just works — but the analysts and intel professionals who build the underlying mission products know which DTED level they have for which area and where the gaps are. The trade-off is always coverage vs resolution: high-resolution DTED exists for places that have mattered operationally and is sparse elsewhere.

An optical disc data-storage format with approximately 4.7 GB capacity per single-layer disc, formally referenced in DoD doctrine and standards for distribution of training media, technical manuals, mission-planning data, and other multimedia content — largely obsolete in the broader technology world but retained in doctrinal references because legacy systems, archived collections, and some deployable distribution chains still depend on optical media when network distribution is not available.

"DVD — the obsolete optical disc that DoD doctrine still references because legacy systems exist."

DVD is in the DoD Dictionary mostly because doctrine has a long shelf life: the format peaked commercially in the 2000s and was replaced by streaming and USB media for civilian purposes long ago, but DoD systems, training collections, technical-manual distributions, and forward-deployed packages still reference and sometimes still use optical media. The entry is a reminder that the Dictionary captures the vocabulary the joint force actually uses, including the legacy bits. For deployers operating in low-bandwidth or air-gapped environments, optical media remains one of the few ways to move data into and out of certain systems without network connectivity — which is why the format persists in places where the commercial world has moved on. The November 2021 Dictionary release reflects that doctrinal lag.

A measure of a ship's cargo-carrying capacity, expressed in long tons (1 long ton = 2,240 lbs) or metric tons, representing the total weight of cargo, fuel, fresh water, ballast water, provisions, passengers, and crew that the vessel can safely carry — distinct from gross tonnage (a measure of internal volume) and displacement tonnage (the weight of water displaced) — the standard sizing metric for merchant ships, sealift assets, and the strategic sealift fleet that supports military deployment.

"DWT — deadweight tonnage; how much cargo and consumables a ship can carry."

DWT is the cargo-capacity measure for ships — the weight of cargo, fuel, water, stores, and people that a vessel can carry, expressed in long tons or metric tons. The merchant-marine world uses DWT routinely; the military world uses it for sealift planning. Strategic sealift assets — MSC's Large Medium-Speed Roll-on/Roll-off ships (LMSRs), the Ready Reserve Force, chartered commercial bottoms — get sized and described by DWT. For mobility planners working USTRANSCOM JOPES or JPES, DWT shows up alongside square footage (for vehicles and equipment) and TEU counts (for containers) as one of the limiting factors in moving a force-flow over water. The distinction from gross tonnage (volume) and displacement (water-displaced weight) matters when ship characteristics get debated.

The US Navy strategic communications aircraft (E-6B Mercury), Boeing 707-derived airframe carrying the Very Low Frequency (VLF) trailing-wire antenna and other communications equipment supporting the airborne command-and-control mission for US nuclear-armed submarines (TACAMO Take Charge and Move Out) and the airborne launch control system for ICBMs and bombers — operated by Strategic Communications Wing One based at Tinker AFB, Oklahoma.

"The Navy TACAMO aircraft — communicates with nuclear submarines via VLF trailing wire."

E-6B Mercury is the strategic-communications aircraft that talks to nuclear-armed submarines and supports airborne launch control — TACAMO ("Take Charge and Move Out") communications via the Very Low Frequency trailing-wire antenna (a wire reeled out from the aircraft for VLF transmission that can penetrate seawater enough to reach submerged SSBNs), plus airborne launch control system functions for ICBMs and bombers. The Navy operates the type from Strategic Communications Wing One at Tinker AFB, Oklahoma. The aircraft is essential NC3 infrastructure: in any scenario where ground-based communications might be disrupted, the airborne E-6B continues the command-and-control link to the nuclear force. The E-XX successor program is in development to replace the aging E-6B fleet.

A multinational airborne battle management aircraft (E-7 Wedgetail, derived from the Boeing 737-700 airframe with the Northrop Grumman Multirole Electronically Scanned Array MESA radar), originally fielded by Australia in 2009 — selected by the US Air Force in 2022 as the E-3 Sentry AWACS successor, by the UK as the E-3D replacement, by Turkey under the Peace Eagle program, and by Korea — fielding with the US Air Force expected through the late 2020s.

"The AWACS successor — Boeing 737 derivative, MESA radar, US/UK/Australia/Korea/Turkey."

E-7 Wedgetail is the next-generation airborne battle management aircraft replacing the legacy E-3 Sentry AWACS in multiple air forces — Australian Royal Australian Air Force the original operator (since 2009), the UK transitioning from E-3D to E-7 (with a smaller fleet than the legacy), Turkey under the Peace Eagle program, Korea, and (selected in 2022) the US Air Force. The aircraft uses the MESA (Multirole Electronically Scanned Array) radar with the distinctive top-mounted blade antenna instead of the legacy rotodome. The smaller airframe, more modern systems, and lower operating cost relative to E-3 are the driving advantages; the production schedule has had stretches across multiple operators as the aircraft transitions from a specialty fleet to a major joint and combined capability.

A US joint-service combat helmet using an ultra-high-molecular-weight polyethylene (UHMWPE) shell to provide improved small-arms fragmentation and rifle-threat protection compared to the legacy aramid-shell Advanced Combat Helmet (ACH) — adopted primarily by the US Marine Corps and selected Army units, retaining the ACH retention and pad suspension system and standard accessory rail mounting points.

"The polyethylene-shell follow-on to the ACH — better protection at similar weight."

ECH is the helmet that replaced the ACH in most Marine line units and a chunk of the Army — same general shape, same pad suspension, same rail accessory mounts, but the shell is UHMWPE polyethylene instead of aramid, which buys meaningfully better fragmentation and rifle-threat performance at roughly similar weight. The Marine on the line gets it issued at CIF (or the Marine equivalent IIF) and runs it with the same NVG mount, the same Ops-Core-style rails, and the same chinstrap they're used to. The helmet itself isn't magic — it's heavier than the bump helmets the SOF community runs, and the polyethylene shell is more sensitive to heat and solvents than aramid was. But "ACH replacement for the conventional force" is what it is, and most service members under E-5 will run an ECH-class helmet for their entire career.

An Israeli wheeled 8x8 armored personnel carrier developed and produced by the Israeli Ordnance Corps and MANTAK — entering operational service with the IDF Ground Forces from the early 2020s — designed to supplement the tracked Namer heavy IFV in roles where wheeled mobility and lower platform cost are advantageous — equipped with a remote weapon station, Iron Fist active protection system (an Elbit Systems alternative to Trophy), and a dismount capacity comparable to similar 8x8 wheeled platforms in other allied militaries.

"Eitan — Israeli wheeled 8x8 APC, supplements Namer in wheeled roles."

Eitan is the Israeli wheeled 8x8 armored personnel carrier — the newer addition to the IDF Ground Forces vehicle fleet, entering operational service in the early 2020s to supplement the tracked Namer in roles where wheeled mobility (road speed, lower sustainment burden, easier strategic mobility) outweighs the absolute protection level of the tracked heavy IFV. The vehicle carries a remote weapon station, the Iron Fist active protection system (an Elbit alternative to Rafael's Trophy, allowing the Israeli defense industry to field both APS lines on different platforms), and a dismount capacity in the same range as comparable 8x8 platforms in other allied militaries (US Army Stryker, German Boxer, Italian Freccia, Polish Rosomak family). The Namer / Eitan combination gives Israeli ground forces a tracked-and-wheeled IFV mix calibrated to the specific operational environments the IDF plans against.

A US Navy expeditionary modular pier system, deployed by Naval Construction Force (Seabees) battalions to provide a temporary elevated causeway from the beach to deeper water — used in Joint Logistics Over-the-Shore (JLOTS) operations to enable lighterage and discharge of cargo from sea-base ships to the beach without a developed port — comprises modular pier sections, piles, and a roadway deck.

"The Seabee-built temporary pier that connects ships to a bare beach for JLOTS."

ELCAS is the temporary pier the Seabees build when there's no port available — modular pier sections on driven piles, with a roadway deck, extending from the beach out to water deep enough for lighterage from sea-base ships. It's a Joint Logistics Over-the-Shore (JLOTS) capability that exists for the scenario where you need to discharge cargo in significant volume but the developed port infrastructure isn't available (because it was destroyed, denied, or never existed). Construction takes days to weeks depending on the configuration; the pier can move thousands of tons of cargo per day once operational. The 2024 Gaza humanitarian pier was a high-visibility JLOTS/ELCAS-adjacent operation that exposed the operational challenges of austere-environment pier operations in adverse sea states. Seabee NMCB units own the capability.

The ability of electronic equipment and systems to operate in their intended electromagnetic environment without causing or suffering unacceptable degradation due to electromagnetic interference — a design requirement, a test and evaluation discipline, and an operational planning factor in joint EMS operations.

"The engineering discipline that keeps electronic systems from interfering with each other."

EMC is the engineering and operational discipline that keeps your radios from killing your radar, your radar from killing your GPS, and your GPS from killing the EW pod on the wing two feet away — the design requirement and test and evaluation regime that ensures electronic systems can coexist in the same electromagnetic environment without unacceptable mutual interference. For program managers, EMC is a MIL-STD-461 / MIL-STD-464 compliance issue handled in T&E. For operators, EMC failures show up as mysterious comms outages, intermittent radar dropouts, and the kind of "system X just doesn't work when system Y is on" troubleshooting that makes maintainers crazy. EMC is closely related to EMI (electromagnetic interference) — EMC is the property of being compatible; EMI is the unwanted-energy phenomenon that EMC mitigates. Most EMC issues are designed out before fielding; the ones that aren't become legendary in the user community.

Any electromagnetic phenomenon that degrades, obstructs, or limits the effective performance of electronics or electrical equipment — can be intentional (jamming) or unintentional (poorly designed emitters, atmospheric noise, friendly fratricide on the spectrum) — the phenomenon that EMC engineering exists to mitigate.

"Unwanted EM energy that degrades electronics — the thing EMC engineering fights."

EMI is the unwanted electromagnetic energy that breaks your stuff — the radar that walks all over your radio, the cell phone that wrecks your GPS, the friendly EW pod that jams your own data link, the atmospheric noise floor that swallows your weak signal. EMI can be intentional (an adversary jammer or a friendly EW system pointed the wrong direction) or unintentional (a poorly designed power supply, a worn-out connector, a fluorescent light radiating into a receiver). The maintainer's nightmare is the intermittent EMI fault — works fine on the bench, fails in the field, can't reproduce. EMC engineering exists to design EMI out at the front end; spectrum management exists to allocate frequencies so emitters don't step on each other; EMBM exists to deconflict in operations. EMI is also the older Service shorthand for "extra military instruction" — military punishment-adjacent corrective training — which is a completely different concept; context disambiguates.

A burst of electromagnetic energy capable of damaging or disabling electronic equipment — can be nuclear (HEMP, high-altitude electromagnetic pulse from a nuclear detonation at altitude) or non-nuclear (NNEMP, generated by purpose-built directed-energy weapons or specific industrial sources) — a long-standing concern for hardening critical defense and infrastructure systems.

"A burst of EM energy that can fry electronics — nuclear (HEMP) or non-nuclear (NNEMP)."

EMP is the electromagnetic burst that fries electronics — the high-altitude nuclear EMP (HEMP) from a nuclear detonation at altitude generates a multi-stage pulse (E1, E2, E3) that can damage unhardened electronics across continent-scale areas; the non-nuclear EMP (NNEMP) is generated by purpose-built directed-energy weapons or specific industrial sources and is localized. Strategic Command and the broader nuclear-deterrence community treat HEMP as a real planning factor; civilian critical infrastructure (power grid, water, transportation, comms) is the principal concern because military systems are typically EMP-hardened where mission-essential and civilian systems generally are not. There is a long-running and sometimes politically charged debate about how serious the threat is and what the appropriate level of investment in grid hardening should be. For the service member, the practical exposure is mostly equipment hardening (TEMPEST, MIL-STD shielding) on critical systems.

A US Army next-generation soldier-worn night vision device (ENVG-B), L3Harris prime, providing binocular (two-eye) viewing, fused imagery (image-intensification plus thermal channel), and wireless interface to the squad's weapon sights for off-bore engagement — fielded across infantry formations beginning 2020 with continuing production — provides a generational improvement over the legacy ENVG-D monocular and PVS-14/15 family.

"The ENVG-B — binocular night vision with fused thermal, wireless to weapons."

ENVG-B is the generation of night vision device that gives a soldier two-eye viewing (depth perception unlike the legacy ENVG-D monocular), fused image-intensification and thermal channels (so a soldier can see both ambient-light-amplified images and heat signatures), and wireless interface to the weapon sight for shooting-from-the-hip / shooting-around-corners off-bore engagement. L3Harris is the prime. Fielding began 2020 to close-combat formations and continues across infantry and other units. The system is significantly more capable than the legacy PVS-14 monocular or PVS-7 binocular goggles; the operational implications include changes to tactics and engagement procedures that take advantage of the fused-imagery and off-bore capabilities.

A class of sensor system that combines electro-optical (visible-spectrum) and infrared (thermal-spectrum) imaging in a single integrated package — fielded on aircraft, UAS, ships, ground vehicles, and standalone tower systems to provide day, night, and through-obscurant target detection, identification, and engagement support — examples include MQ-9 Reaper MTS-B, AH-64 Apache M-TADS/PNVS, F-35 EOTS, and many ground and naval variants.

"EO-IR — the combined day/thermal sensor on Reapers, Apaches, F-35s, and most modern surveillance platforms."

EO-IR is the day/thermal sensor combination that defines modern targeting and surveillance — visible-light cameras for daylight identification, thermal infrared for night and through-obscurant detection, often with laser rangefinder and laser designator built into the same gimbal. The MQ-9 Reaper's MTS-B ball, the Apache's M-TADS/PNVS pylon, the F-35's Electro-Optical Targeting System, the LITENING and Sniper pods on legacy fighters, and dozens of ground vehicle and ship-mounted variants are all flavors of the same sensor concept. For the operator, the trade between EO and IR is constant: EO gives better identification (you can read a license plate) but is blind in dust, smoke, and dark; IR sees heat through obscurants but loses the surface detail. Modern systems fuse both channels and overlay them, which is how the targeting pod operator on a ten-hour overwatch mission stays effective across the day-night cycle.

The family of tracked and wheeled remotely-operated robotic systems used by joint-force EOD operators to investigate, characterize, and (in some configurations) render safe explosive ordnance from standoff — including the legacy Talon (Foster-Miller / QinetiQ) and PackBot (iRobot / Endeavor) platforms and the modernization Common Robotic System-Individual (CRS-I) and Centaur platforms that succeed them.

"The EOD robots — Talon, PackBot, and modern successors that work the device from standoff."

EOD robotics are the standoff that keeps the operator alive — a tracked or wheeled robot with cameras, manipulators, and disruption tools that lets the operator characterize and (sometimes) render safe a device without putting hands on it. Talon and PackBot were the dominant systems through GWOT; the Common Robotic System-Individual (CRS-I) and the Centaur family are the modernized successors entering service. The robot is not a replacement for the operator — operators still approach when robotic tools can't do the job — but every meter of standoff matters. Joint EOD training includes substantial robotic-platform proficiency.

A formal technical publication in the EOD 60-series technical-manual system that describes a specific category or item of munition — including identification, render-safe procedures, and disposal procedures — issued by the Naval Sea Systems Command EOD Technology Division as the joint-Service authoritative source for EOD operational data on a specific item.

"EODB — the per-munition technical bulletin every EOD tech reads before approaching that ordnance type."

EODB is the per-item EOD technical publication — the document the EOD team reads on the way to a call to confirm what they're looking at, how it works, what the render-safe procedure is, and what the disposal procedure is. Every category and major variant of munition in the joint inventory and the foreign inventories EOD encounters has an EODB or related document, maintained centrally by the Naval Sea Systems Command EOD Tech Division (NAVSEA EODTECHDIV) which is the joint-Service technical authority for EOD operational data. The bulletins are not infantry reading — they're technical, dense, and assume EOD pipeline training — but they're the institutional knowledge that distinguishes the modern EOD operator from someone with a flashlight and good intentions. EODTIC (Technical Information Center) is the broader archive; the EODB is one document within that system.

The joint-Service automated information system used to record, track, and analyze EOD response data — every EOD call generates an EODIMS report capturing the munition type, location, render-safe procedure used, disposal method, and lessons learned — providing the institutional dataset that informs technical-manual updates, training, and tactical-technical-procedure development across the joint EOD community.

"EODIMS — the joint database where every EOD call gets logged for trend analysis and procedure development."

EODIMS is the database every EOD team feeds at the end of every call — munition type, location, condition found, render-safe procedure used, disposal method, what worked, what didn't. The aggregated data drives everything else in the community: EODB technical-manual updates ride on EODIMS-identified trends; new render-safe procedures get validated against the EODIMS dataset; the training pipeline adjusts based on what calls are actually happening in the field. For the operator, EODIMS reporting is the administrative tail at the end of a long day on a call, which is why teams have institutional memory about which leaders enforce timely reporting and which don't. The dataset over time is one of the most operationally informative archives in the joint force — the record of every UXO, IED, military ordnance, and improvised device the joint EOD community has touched.

A program-management line within the joint EOD architecture covering research, development, test, evaluation, and training-pipeline equities for EOD technology — historically also a contractor identity (EOD Technology and Training, Inc., and successor firms) supporting EOD acquisition, training, and operations — within the doctrinal lexicon, refers to the function-area of EOD modernization and skill-pipeline development.

"EODT&T — the EOD technology and training function, both a program line and a contractor space."

EODT&T is the function area at the intersection of EOD acquisition and EOD training — the work of figuring out what new render-safe tools, robotics, x-ray systems, and protective equipment the community needs, then getting it through development, test, fielding, and into the training pipeline at Naval School EOD (NAVSCOLEOD) at Eglin AFB so the operators show up to platoons knowing how to use it. The acronym also lives in the contractor space — multiple firms have done EOD technology and training work for DoD over the years — which can cause confusion in usage. The technical authority for EOD equipment runs through NAVSEA's EOD Technology Division; the training authority runs through NAVSCOLEOD; the broader EODT&T enterprise stitches across both with the program offices and the cross-Service governance.

The joint-Service centralized repository of EOD technical data, render-safe procedures, foreign-ordnance information, and lessons learned — managed by the Naval Sea Systems Command EOD Technology Division (NAVSEA EODTECHDIV) at Indian Head, Maryland — providing the authoritative source of EOD technical information that operators access for in-field reference, training, and procedure development.

"EODTIC — the joint EOD technical information archive at NAVSEA EOD Tech Division, Indian Head."

EODTIC is the joint EOD technical information archive — every EODB technical bulletin, every render-safe procedure, every foreign-ordnance characterization, every lessons-learned report from the field, centralized at NAVSEA EOD Technology Division at Indian Head, Maryland. For EOD operators, EODTIC is the reachback when something on a call doesn't match the field-issued reference materials — a foreign munition type that doesn't look right, an improvised device whose construction suggests a builder signature already in the database, a render-safe procedure that needs technical confirmation before execution. The Indian Head footprint also includes the explosives R&D, foreign-ordnance exploitation, and the broader joint-Service EOD technical-authority work that keeps the community's knowledge base current. EODTIC is one of the institutional artifacts that makes EOD a joint community in fact and not just on paper.

A US Navy Military Sealift Command vessel class (T-EPF, Spearhead class, formerly Joint High Speed Vessel / JHSV) — aluminum-hull catamaran with shallow draft, 35-plus knot transit speed, and a flexible mission deck — operated by civilian mariners (T- prefix indicating MSC operation rather than commissioned USS), supporting intra-theater lift, humanitarian assistance, partner-nation engagement, and a wide range of secondary missions across multiple combatant commands.

"EPF — the T-EPF Spearhead class fast catamaran, MSC civilian crew, intra-theater lift and humanitarian missions."

EPF is the Spearhead-class fast catamaran the Navy operates through Military Sealift Command with civilian mariners — the program started life as JHSV (Joint High Speed Vessel) under joint Army-Navy interest, eventually became Navy-funded, and reclassified as T-EPF when the Spearhead-class transitioned to MSC operation. The ship is fast (35-plus knots in transit), shallow-draft (can hit small ports and beaches that conventional sealift can't), and configurable for many mission sets — intra-theater unit moves, partner-nation engagement (Pacific Partnership, Continuing Promise, Africa Partnership Station type missions), humanitarian assistance, special-operations support, embarked-staff platform, and unmanned-systems experimentation. The civilian-mariner crew and lighter armament profile limit the high-end combat utility but expand the day-to-day operational availability — T-EPFs spend significant time forward across multiple AORs.

A maritime distress beacon that automatically (when activated by submersion or manual switch) transmits a distress signal on the 406 MHz international distress frequency monitored by the COSPAS-SARSAT satellite system — registered to a specific vessel or operator, the beacon provides position, vessel identity, and distress-status data enabling search-and-rescue response — required on most commercial vessels and a routine fit on military and Coast Guard small craft.

"EPIRB — the 406 MHz maritime distress beacon that tells COSPAS-SARSAT satellites you're sinking."

EPIRB is the maritime distress beacon every boat is supposed to have — a self-contained 406 MHz transmitter that, when activated (manually or by submersion when the vessel goes under), broadcasts a distress signal to the COSPAS-SARSAT satellite constellation, which forwards the alert to rescue coordination centers (the Coast Guard for US waters) within minutes. The beacon is registered to the vessel or operator, so when it activates, responders know who is in trouble and have the last known position from the satellite-derived fix and any onboard GPS the beacon carries. For Coast Guard small-boat crews, military combatant craft, and any maritime force, the EPIRB (or its personal locator equivalent, PLB) is the difference between a fast SAR response and a missing-vessel investigation. The 406 MHz framework also covers ELT (aviation) and PLB (personal) variants under the same satellite architecture.

An improved-performance ceramic rifle-threat-rated body armor plate succeeding the original SAPI, designed to defeat higher-velocity and higher-penetration rifle threats than the legacy SAPI standard — fielded across Army and Marine Corps formations from approximately 2005 onward in response to the evolving small-arms threat in Iraq and Afghanistan.

"The improved-rifle-threat ceramic plate — replaced SAPI as the baseline."

ESAPI is the upgraded SAPI — same general size and pocket compatibility, but a heavier and thicker ceramic plate rated to defeat higher-velocity and armor-piercing rifle threats that the original SAPI didn't cover. Fielded across the force from about 2005 onward as the threat assessment in theater escalated, ESAPI became the baseline plate most GWOT-era deployers actually wore. The trade-off is weight — an ESAPI four-plate set is noticeably heavier than the SAPI set it replaced, and that weight compounds with the IOTV, helmet, weapon, ammo, water, and everything else the dismount carries. The conversation about soldier load that runs through every modernization program is partly a conversation about ESAPI and its successors.

The US Navy Expeditionary Sea Base type (formerly designated AFSB Afloat Forward Staging Base) — large amphibious-style ships designed to support sustained forward-deployed special operations, mine countermeasures, and other mission sets through forward-deployed presence in regions without nearby shore-based US infrastructure — Lewis B. Puller-class (ESB-3 USS Lewis B. Puller onward) provides the current production class.

"The ESB ships — forward-deployed staging bases, slug `esb-ship` (bare `esb` is Expert Soldier Badge)."

ESB is the Expeditionary Sea Base hull type — large ships (resembling supertanker-class hulls modified for naval use) that provide forward-deployed staging-base capability for special operations, mine countermeasures, and other mission sets in regions where the US doesn't have nearby shore-based infrastructure. The class began with the legacy AFSB Afloat Forward Staging Base designation and was renamed ESB. The current production class is Lewis B. Puller-class (ESB-3 USS Lewis B. Puller). The ships have flight decks, large vehicle/cargo capacity, and accommodation for embarked-force elements. Forward-deployed presence in the Persian Gulf and other key regions has been the operational use. The slug `esb-ship` disambiguates from the existing `esb` slug (Expert Soldier Badge).

The US Navy Expeditionary Transfer Dock hull type (formerly Mobile Landing Platform MLP), designed to enable sea-basing operations by serving as a transfer point between large MSC-operated cargo ships and smaller ship-to-shore connectors (LCAC, lighters, etc.) — Montford Point-class (ESD-1) provides the current capability — operationally enables Marine and joint amphibious operations in austere logistics environments.

"The ESD ships — sea-basing transfer platforms, ship-to-shore connector hub."

ESD is the Expeditionary Transfer Dock hull type — vessels designed to enable sea-basing operations by serving as a transfer point between large cargo ships (typically MSC-operated) and smaller ship-to-shore connectors like LCACs. The legacy Mobile Landing Platform (MLP) designation was renamed to ESD. The Montford Point-class (ESD-1, ESD-2 with ESB-3 onward derived from the basic ESD hull) provides the current capability. The operational value is enabling Marine and joint amphibious operations in environments without functional port infrastructure — moving heavy cargo from large supply ships through the ESD to LCACs that put it ashore. The class is small but operationally consequential for the amphibious doctrine.

A twin-engine, multi-role fighter aircraft jointly developed by Germany, the United Kingdom, Italy, and Spain through the Eurofighter consortium, in operational service with the four partner nations and export customers — the principal air-superiority and multi-role combat aircraft of the Luftwaffe — entered Luftwaffe service in the mid-2000s, with continuous capability upgrades through successive Tranche standards — equipped with the ECR Eurofighter (Electronic Combat Role) variant under German development for the future SEAD mission, succeeding the Tornado ECR.

"Eurofighter Typhoon — joint UK/DE/IT/ES fighter, Luftwaffe air-superiority + multi-role since mid-2000s."

The Eurofighter Typhoon is the Luftwaffe's principal multi-role fighter — a twin-engine combat aircraft jointly developed by Germany, the United Kingdom, Italy, and Spain through the Eurofighter consortium, entered Luftwaffe service in the mid-2000s. The aircraft has been upgraded continuously through successive Tranche standards (Tranche 1, 2, 3, and the planned long-term capability upgrades) covering air-superiority, multi-role strike, and reconnaissance missions. The Eurofighter ECR variant (Electronic Combat Role) is in development as the planned successor to the Tornado ECR in the SEAD mission — a German lead-nation development that preserves the Luftwaffe's SEAD capability beyond the Tornado retirement timeline. For a US Air Force partner, the Eurofighter is roughly comparable to the F-15EX Eagle II in the multi-role-twin-engine slot, with significant operational cooperation across NATO air policing rotations including the Baltic Air Policing mission.

The Aeronautica Militare's primary air-superiority and multi-role fighter — Italy is one of the four Eurofighter consortium nations (alongside the United Kingdom, Germany, and Spain) — operated by the Aeronautica Militare in air-defence, NATO air-policing, and multi-role configurations — based principally at Grosseto and Gioia del Colle Air Bases — successor to the Italian F-104 Starfighter and Tornado ADV fleets.

"Eurofighter Italy — Italian Air Force consortium operator, air-superiority + NATO air-policing, HQ Grosseto."

The Eurofighter Typhoon is the Italian Air Force's primary air-superiority and multi-role fighter — Italy is one of the four Eurofighter consortium nations (alongside the UK, Germany, and Spain), with Italian industrial participation through Leonardo (formerly Alenia Aermacchi). The Italian Eurofighter fleet provides air-defence of Italian airspace, NATO air-policing rotations (Iceland, Baltic, Black Sea), and multi-role capability across exercise and deployment commitments. Based principally at Grosseto in Tuscany and Gioia del Colle in Puglia. For a US Air Force partner, the closest doctrinal analogue is the F-15C/D community — air-superiority emphasis with growing multi-role capability — though the Italian Eurofighter and F-35A communities are progressively integrated into a joint fleet rather than maintained as separate single-mission communities. The Eurofighter is the workhorse air-defence platform while F-35A is the stealth multi-role; both communities operate side-by-side.

The US Air Force two-seat all-weather multi-role strike fighter (F-15E Strike Eagle), Boeing prime, fielded since 1989 with 213 production aircraft and continuous modernization (Suite 9, Eagle Passive Active Warning Survivability System EPAWSS) — providing precision air-to-ground strike capability with secondary air-to-air capability, certified as a Dual-Capable Aircraft for nuclear delivery — based at Seymour Johnson AFB (NC), Lakenheath (UK), and Mountain Home AFB (ID).

"The two-seat air-to-ground variant — Strike Eagle, DCA certified."

F-15E Strike Eagle is the two-seat variant of the F-15 line — air-to-ground primary mission, with substantial air-to-air capability retained, and unique among USAF fighters as a Dual-Capable Aircraft for nuclear delivery (carries B61 family). The aircraft has been the principal USAF tactical strike platform across decades of operations and remains heavily tasked across CENTCOM and EUCOM. Seymour Johnson AFB (4th FW) is the largest operating wing; Lakenheath in the UK (48th FW) provides the European forward-deployed presence; Mountain Home AFB also operates the type. Modernization is continuous; the airframe remains relevant despite F-35 entering service in significant numbers.

The US Air Force modernized F-15 Eagle variant (F-15EX Eagle II), Boeing prime, derived from the F-15QA variant developed for Qatar — incorporating modernized cockpit, EPAWSS electronic warfare suite, AESA radar, and expanded weapon-stations payload capacity — fielded beginning 2021 with planned procurement of approximately 80-100 aircraft for the Air National Guard and active-duty Air Force, replacing legacy F-15C/D air-superiority airframes.

"The modernized F-15 — replacing legacy F-15C/D, 80-100 aircraft buy."

F-15EX Eagle II is the modernized F-15 the Air Force is buying — a fourth-generation airframe (not stealth) but with significantly modernized avionics, EPAWSS electronic warfare suite, AESA radar, and the ability to carry a heavy payload of weapons (up to 12 air-to-air missiles or significant air-to-ground load). The aircraft replaces the legacy F-15C/D air-superiority fleet, which had been the principal homeland air defense fighter for decades but had aged into the late-life maintenance and structural concerns characteristic of any 30-40-year-old fleet. F-15EX is also being considered for the carriage of large hypersonic and other heavy weapons (the F-15EX has more payload capacity than F-35A). The Air National Guard is a major operator, with Oregon, Louisiana, and Florida wings transitioning to the type.

A Japanese variant of the F-15 Eagle air-superiority fighter built under license by Mitsubishi Heavy Industries from the early 1980s — approximately 200 single-seat F-15J and two-seat F-15DJ aircraft produced — operated by the Japan Air Self-Defense Force as the primary air-superiority platform, with an ongoing Japan Super Interceptor (JSI) modernization program to extend the fleet through the 2030s with updated radar, electronic warfare, and weapons.

"F-15J — JASDF Eagle, ~200 built, Japan Super Interceptor modernization underway."

The F-15J is the Mitsubishi-license-built F-15 that has been the JASDF's primary air-superiority fighter for four decades — approximately 200 single-seat F-15J and two-seat F-15DJ aircraft, with the fleet split between multiple JASDF wings including the Southwestern Air Defense Force units at Naha (Okinawa) that fly the highest scramble tempo against PRC and other approaching aircraft. The Japan Super Interceptor (JSI) modernization program is the ongoing effort to keep the fleet operationally relevant through the 2030s — updated radar, electronic warfare, weapons integration. For US Air Force F-15 communities (the JASDF F-15J fleet is one of the few F-15C/D-derivative communities remaining alongside the US fleet retiring), JASDF F-15 squadrons are partner operators with similar institutional and tactical heritage.

A Korean-specific variant of the Boeing F-15E Strike Eagle, operated by the Republic of Korea Air Force — initial 40-aircraft order delivered between 2005 and 2008, with a second batch of 21 aircraft following — provides ROKAF with long-range strike capability, integrating the F-15E airframe with Korean-specific avionics, weapons integration, and the JASSM-ER cruise missile capability.

"F-15K — Korean F-15E variant, ROKAF long-range strike fighter."

F-15K is the ROKAF long-range strike fighter — derived from the F-15E Strike Eagle, with Korean-specific avionics and weapons integration that includes the JASSM-ER long-range cruise missile (one of the few F-15 operators with that capability). The first batch of 40 aircraft was delivered between 2005 and 2008; the second batch of 21 followed. The aircraft fills the high-end strike role in ROKAF — deep strike, long-range standoff weapons employment, and the all-weather day-night capability the F-15E family is known for. The F-15K sits in the ROKAF force structure alongside the F-35A (the fifth-generation platform) and the F-16C/D (the workhorse). The Korean F-15 program is the model that the F-15EX program for the US Air Force draws on for its updated electronics and weapons-integration baseline.

The US Air Force, allied air force, and FMS multi-role lightweight fighter (F-16 Fighting Falcon, also known to pilots as "Viper"), General Dynamics/Lockheed Martin prime, fielded since 1978 with continuous production through the present and variants in service across more than 25 nations — the principal US Air Force fighter through most of the 1980s-2020s, being progressively replaced in active-duty Air Force squadrons by F-35A but remaining in Air National Guard service and broadly across allied air forces.

"The Viper — multi-role lightweight fighter, F-35A replacement ongoing."

F-16 is the most widely operated Western fighter aircraft — over 4,500 produced across continuing variants, fielded in more than 25 air forces, and the workhorse of US Air Force fighter aviation across the past four decades. The F-16C/D and F-16V (Viper) modernization variant continue in production; the US Air Force is gradually transitioning F-16 squadrons to F-35A in active duty (and increasingly Air National Guard) units, with F-16 service in the Air Guard expected to continue well into the 2030s. The aircraft's production continues for FMS customers (Taiwan, Bahrain, Bulgaria, Slovakia, Jordan, and others). The transfer of F-16s to Ukraine from European partners (with US training) was a major political and operational development of 2023-2024. The aircraft has a substantial pilot and maintenance culture across the joint and allied force.

A Japanese multirole strike fighter developed jointly by Mitsubishi Heavy Industries and Lockheed Martin in the 1990s — a derivative of the F-16 Fighting Falcon adapted with a larger wing, increased composite materials, and Japanese-developed avionics including the J/APG-1 active electronically scanned array radar — operated by the Japan Air Self-Defense Force in the anti-ship and ground-attack role with the AGM-65 Maverick and Japanese ASM-1/2/3 anti-ship missiles — approximately 90 aircraft were produced before the line closed.

"F-2 — Japan's F-16-derivative strike fighter, anti-ship focus, JASDF."

The F-2 is the Japanese-developed F-16-derivative strike fighter — bigger wing than the baseline F-16, more composite materials, Japanese-developed AESA radar (one of the earliest operational fighter AESAs in any air force), and a specialized anti-ship role using the indigenous ASM-1, ASM-2, and ASM-3 anti-ship missile families. JASDF operates the fleet in the air-to-surface and anti-ship role, with the F-15J handling the air-superiority piece. The acquisition program was politically contentious — significantly more expensive than buying baseline F-16s, with debates in both countries about technology-transfer terms — but the resulting aircraft has been a capable platform tailored to Japanese requirements. The fleet is aging, with the planned successor (the F-X / GCAP / Global Combat Air Programme partnership with the UK and Italy) intended to enter service in the mid-2030s.

The US Air Force fifth-generation air-superiority stealth fighter (F-22 Raptor), Lockheed Martin prime, fielded 2005 with 187 production aircraft (plus development airframes) and currently approximately 180 operational — providing the principal US air-superiority capability against peer-adversary fighter and surface-to-air threats — the production line closed in 2011 with no further aircraft built, making the fleet a permanent strategic asset rather than an expandable inventory.

"The Air Force air-superiority stealth fighter — production closed at 187."

F-22 Raptor is the air-superiority fighter the Air Force operates and cannot replace — production line closed in 2011 at 187 aircraft, no foreign sales ever authorized (Congress explicitly prohibited F-22 export), and the fleet is a closed strategic asset of approximately 180 operational airframes. The aircraft is the principal US capability against peer-adversary fighters and modern integrated air defenses; the NGAD program (covered in v36) is the eventual successor but is on a long timeline. F-22 modernization (sensors, networking, weapons integration) is continuous; the aircraft is also experiencing the structural fatigue and maintenance cost characteristic of any 20-year-old fleet. The "F-22 mafia" pilot community is small and concentrated at Tyndall AFB (1st FW operating wing) and Joint Base Elmendorf-Richardson among other bases.

The Royal Canadian Air Force fighter replacement programme — the Future Fighter Capability Project (FFCP) selected the F-35A Lightning II as the CF-18 Hornet successor in 2023, with up to approximately 88 aircraft planned — deliveries scheduled through the late 2020s and into the 2030s — will replace the CF-18 Hornet fleet at the principal RCAF fighter wings (4 Wing Cold Lake and 3 Wing Bagotville) — Canada was a Tier-3 partner in the F-35 Joint Strike Fighter programme through the development phase.

"F-35 Canada — RCAF F-35A acquisition, ~88 aircraft, replaces CF-18, deliveries through 2030s."

The F-35A is the RCAF's fighter replacement programme — formally the Future Fighter Capability Project (FFCP), with the F-35A Lightning II selected in 2023 as the CF-18 Hornet successor and up to approximately 88 aircraft planned. Deliveries are scheduled through the late 2020s and into the 2030s, with the F-35A replacing the CF-18 fleet at 4 Wing Cold Lake and 3 Wing Bagotville. Canada's F-35 programme has been politically contested across administrations — the original Conservative government decision to procure F-35 in 2010 was reversed by the subsequent Liberal government and then ultimately reaffirmed through the FFCP competition, with the politics extending across multiple election cycles. For a US Air Force F-35A operator, the RCAF F-35A force will be one of the closest international F-35 partner communities — common airframe, common combat systems, NORAD daily integration, and decades of combined operational and training history under the CF-18 era to build on.

The US Air Force, allied air force, and Foreign Military Sales conventional-take-off-and-landing variant of the F-35 Lightning II fifth-generation joint strike fighter (Lockheed Martin prime), the largest of the three variants by production volume — fielded since 2016 with continuing block upgrades (Block 3F current, Block 4 in development with Technology Refresh 3) — operating from numerous US Air Force and allied air force bases worldwide and being introduced into NATO nuclear-sharing DCA roles.

"The Air Force F-35 variant — conventional take-off and landing, largest production volume."

F-35A is the conventional-take-off-and-landing F-35 variant — the largest of the three F-35 variants by production volume, operated by the Air Force, broad allied air forces (UK, Norway, Netherlands, Australia, Italy, Israel, Japan, South Korea, Belgium, Denmark, Poland, Finland, Switzerland, Germany among others), and an expanding Foreign Military Sales customer base. The aircraft is fifth-generation (stealth, sensor fusion, networking) and replacing the F-16 in most US Air Force fighter squadrons as well as serving as the new DCA aircraft in NATO nuclear sharing (replacing F-16 DCA roles). Block 4 upgrades with Technology Refresh 3 are entering service through the 2020s, expanding weapons integration and capabilities. The program has been politically contentious through its history but is now an established fleet centerpiece.

The Royal Australian Air Force variant of the F-35A conventional takeoff and landing fifth-generation fighter — Australia is a Tier-1 partner in the F-35 programme since the System Development and Demonstration phase — 72 aircraft programme of record — initial operating capability declared 2020, operating units at RAAF Williamtown (No. 3 Squadron, No. 77 Squadron) and RAAF Tindal in the Northern Territory.

"F-35A AU — RAAF F-35A operator, 72-aircraft programme, Williamtown and Tindal squadrons."

The RAAF F-35A force is Australia's primary fifth-generation fighter capability — 72 aircraft programme of record, initial operating capability declared 2020, with operating squadrons at RAAF Williamtown in New South Wales (No. 3 and No. 77 Squadrons) and RAAF Tindal in the Northern Territory. Australia has been a Tier-1 international partner in the F-35 programme since the early System Development and Demonstration phase, which gave Australian industry significant programme participation and gave the RAAF early access to the platform doctrine development. For a US Air Force F-35A operator rotating through the Indo-Pacific — particularly into RAAF bases under exercises like Cope North and Talisman Sabre — RAAF F-35A squadrons are partner units operating an identical aircraft with closely aligned tactical doctrine.

The Lockheed Martin F-35A Lightning II — the planned successor to the Panavia Tornado in the Luftwaffe nuclear-sharing dual-capable aircraft (DCA) role — acquisition announced March 2022 in the immediate aftermath of the Russian invasion of Ukraine as part of the Zeitenwende posture shift — funded through the 100 billion euro Sondervermoegen special fund — planned procurement of approximately 35 aircraft to preserve the German contribution to NATO nuclear sharing beyond the Tornado retirement timeline.

"F-35A Germany — Lockheed Martin F-35A, Luftwaffe nuclear-sharing Tornado successor, announced March 2022."

The F-35A Germany acquisition is the Luftwaffe's planned nuclear-sharing successor to the Panavia Tornado — Lockheed Martin F-35A Lightning II, approximately 35 aircraft, announced in March 2022 in the immediate aftermath of the Russian invasion of Ukraine. The acquisition is operationally significant because it preserves the German contribution to NATO nuclear sharing: Germany is one of five NATO allies (with Belgium, Italy, Netherlands, and Turkey) that hosts US tactical nuclear weapons and provides dual-capable aircraft (DCA) certified to carry US B61 gravity weapons. The Tornado retirement timeline had created a question about how Germany would continue to fulfill that NATO nuclear-sharing commitment; the F-35A acquisition (funded through the 100 billion euro Sondervermoegen special fund) is the institutional answer. For a US Air Force partner, the German F-35A buy is part of the broader European F-35 enterprise alongside UK, Italy, Netherlands, Denmark, Norway, Belgium, Poland, Finland, Switzerland, and others — and is one of the most consequential Zeitenwende-era procurement decisions.

The Aeronautica Militare's conventional-take-off-and-landing F-35 variant — Italy is one of the eight original Joint Strike Fighter (JSF) partner nations, with Italian industrial participation including the F-35 Final Assembly and Check-Out (FACO) line at Cameri in Piedmont, the only F-35 final-assembly facility outside the United States — Italian F-35A operations primarily at Amendola Air Base in Puglia.

"F-35A Italy — Italian Air Force JSF partner, Cameri FACO line is the only non-US F-35 final assembly facility."

The F-35A is the Italian Air Force's conventional-takeoff-and-landing JSF — Italy is one of the eight original Joint Strike Fighter partner nations and brings to the programme one of the most consequential industrial participations: the F-35 Final Assembly and Check-Out (FACO) line at Cameri in Piedmont, which is the only F-35 final-assembly facility outside the United States and which also performs European F-35 maintenance and depot work. Italian F-35A operations are based primarily at Amendola Air Base in Puglia. For a US Air Force F-35 partner, the most significant operational fact about Italy is that the F-35A community there is mature, well-integrated, and operationally credible — Amendola has been hosting Italian F-35As since the mid-2010s, and the maintenance and sustainment integration with the FACO at Cameri makes the Italian F-35 enterprise institutionally embedded in the broader programme in a way no other European partner can match.

The Japan Air Self-Defense Force variant of the F-35A conventional takeoff and landing fifth-generation fighter — Japan is one of the largest international F-35A operators, with 147 aircraft planned (a planned increase from the original 42-aircraft program of record announced in 2018-2019) — initial operating capability declared 2019, with operating units at Misawa Air Base in Northern Japan — final assembly initially supported by a Mitsubishi Heavy Industries facility in Nagoya before consolidation to US production.

"F-35A Japan — JASDF F-35A operator, 147 planned, Misawa-based."

JASDF is one of the largest planned F-35A operators outside the US — 147 aircraft planned, up from the original 42-aircraft program of record after the 2018-2019 decision to significantly expand the buy alongside the F-35B Izumo-class program. The first squadron stood up at Misawa Air Base in Northern Japan and reached initial operating capability in 2019; subsequent squadrons have been building out. Japan was originally a Foreign Military Sales partner with a Mitsubishi Heavy Industries final assembly and checkout (FACO) facility in Nagoya for some early aircraft, before consolidation back to US production for cost reasons. For US Air Force F-35A operators rotating into Kadena and elsewhere in the Pacific, JASDF F-35A squadrons are partner units — same aircraft, similar doctrine, growing interoperability.

The Lockheed Martin F-35A Lightning II conventional takeoff and landing variant of the Joint Strike Fighter, operated by the Republic of Korea Air Force — initial 40-aircraft order delivered between 2018 and 2022 with additional batches procured — provides ROKAF with fifth-generation low-observable strike capability, integrated with the broader F-35 user community across allies and partners.

"F-35A in ROKAF service — Korea's fifth-generation strike fighter."

F-35A in ROKAF service makes Korea one of the early Asian F-35 operators alongside Japan and Australia — the initial 40-aircraft order was delivered between 2018 and 2022, with additional batches procured to expand the fleet. The aircraft operates from ROKAF bases with the supporting infrastructure (ALIS / ODIN, the sustainment ecosystem, the specialized hangars) built out. The integration into the broader F-35 user community provides ROKAF with shared logistics, shared software development, and shared tactics development across allies — the multinational F-35 enterprise is one of the deeper interoperability mechanisms in the contemporary alliance system. The Korean F-35 sits alongside the indigenous KF-21 program in the ROKAF future force structure — F-35 as the high-end fifth-generation platform, KF-21 as the 4.5-generation mass-producer.

The US Marine Corps, UK Royal Air Force/Royal Navy, and FMS short-take-off-and-vertical-landing variant of the F-35 Lightning II (Lockheed Martin prime), designed for amphibious assault ship operation, expeditionary airfield operation, and aircraft-carrier operation aboard the UK Queen Elizabeth-class carriers and the Italian Cavour — replacing the legacy AV-8B Harrier II across the Marine Corps and other STOVL operator inventories.

"The Marine Corps F-35 variant — STOVL operation, replaces AV-8B Harrier II."

F-35B is the STOVL F-35 variant — the airframe that can take off in a very short distance and land vertically thanks to the LiftSystem powerplant (a shaft-driven lift fan plus rotating exhaust nozzle). The Marine Corps operates the largest fleet, replacing the legacy AV-8B Harrier II across MAGTF aviation. The UK Royal Air Force and Royal Navy operate F-35B from the Queen Elizabeth-class carriers (the UK opted for the STOVL variant rather than the catapult-arrested F-35C). Italy operates F-35B from the Italian Navy's Cavour carrier and Italian Air Force expeditionary bases. The STOVL capability gives Marine Corps formations the ability to operate from amphibious assault ships and improvised forward airfields the conventional carrier-borne aircraft cannot use.

The STOVL F-35 variant operated by the Marina Militare for carrier operations from ITS Cavour and ITS Trieste, and also by the Aeronautica Militare for short-runway and expeditionary operations — Italy is the only European nation operating both F-35A (Air Force conventional) and F-35B (Navy and Air Force STOVL) variants — F-35B final assembly conducted at the Cameri FACO line in Piedmont alongside Italian F-35A production.

"F-35B Italy — only European nation with both F-35A + F-35B, Cavour/Trieste carrier ops + Aeronautica STOVL."

The F-35B is the STOVL Lightning II operated by both the Marina Militare (for carrier operations from ITS Cavour and ITS Trieste) and the Aeronautica Militare (for short-runway and expeditionary operations). The institutionally distinctive fact about Italian F-35 operations is that Italy is the only European nation operating both A and B variants — the UK operates only the B for both RN carriers and RAF Lightning Force, while every other European F-35 partner (Norway, Netherlands, Denmark, Poland, Belgium, Finland, Germany, Romania, Czech Republic) operates only the A. The two-variant Italian fleet means the F-35 community there is institutionally embedded in both naval-aviation carrier ops and conventional Air Force operations, with the Cameri FACO line in Piedmont assembling both variants. For a US Marine Corps F-35B partner or a US Navy F-35C partner, the Italian Marina Militare F-35B community is the natural counterpart for cross-deck and combined operations.

The Japan Air Self-Defense Force variant of the F-35B short takeoff and vertical landing fifth-generation fighter — Japan is the second international F-35B operator after the United Kingdom — acquisition decision announced 2018-2019 as part of the broader F-35 program expansion and the parallel decision to convert the Izumo-class helicopter destroyers for fixed-wing aviation — first deliveries in the mid-2020s, with operating concept developed in close coordination with US Marine Corps F-35B operators.

"F-35B Japan — JASDF F-35B for Izumo-class light-carrier operation."

The F-35B Japan program is the aircraft side of the Izumo-class conversion — Japan acquired the F-35B variant specifically to operate from the converted JS Izumo and JS Kaga, restoring Japanese fixed-wing naval aviation for the first time since 1945. Japan is the second international F-35B operator after the United Kingdom, with the operating concept developed in close coordination with US Marine Corps F-35B squadrons that have operated from US LHDs and LHAs and from forward-operating-location dispersed-operations concepts. For Marine F-35B operators on the Wasp-class and America-class amphibious ships forward-deployed to Sasebo, JASDF F-35B counterparts are an emerging partner force on a closely-aligned platform. The first JASDF F-35Bs are arriving in the mid-2020s with operational integration with the converted Izumo-class to follow.

The US Navy carrier-variant of the F-35 Lightning II (Lockheed Martin prime), designed for catapult launch and arrested landing aboard Nimitz-class and Ford-class aircraft carriers — with larger wings (folding for hangar deck stowage) for slower approach speeds and increased internal fuel capacity than F-35A and F-35B — fielded with carrier-air-wing fighter squadrons replacing legacy F/A-18C Hornet and supplementing F/A-18E/F Super Hornet.

"The Navy F-35 variant — carrier-based, replaces legacy F/A-18 Hornet."

F-35C is the carrier-variant F-35 — bigger wings for slower approach speeds (folding for hangar stowage), more internal fuel, the catapult attachment and arresting hook for carrier operation, and reinforced landing gear for arrested-landing loads. The variant entered initial operational capability with Navy carrier air wings in 2019 and is replacing legacy F/A-18C Hornet squadrons (which are mostly transitioned out by now). Super Hornet F/A-18E/F squadrons remain a substantial portion of carrier air wings for the foreseeable future; F-35C and Super Hornet operate together as the carrier-borne tactical aviation mix. The Marine Corps also operates a smaller fleet of F-35C as the Marine-Aviation contribution to carrier air wing rotations.

The Royal Australian Air Force variant of the F/A-18F Super Hornet two-seat multirole strike fighter — 24 aircraft acquired as a bridging capability when the F-111C retired in 2010 — operated by No. 1 Squadron at RAAF Amberley, Queensland — provides the RAAF with strike, anti-ship, and tactical air-superiority capability complementing the F-35A force — paired with the EA-18G Growler electronic-attack variant, with the RAAF being the only Growler operator outside the US Navy.

"F/A-18F AU — RAAF Super Hornet (24 aircraft), No. 1 Squadron Amberley, paired with EA-18G Growler."

The RAAF F/A-18F Super Hornet force is 24 aircraft acquired as a bridging capability when the F-111C retired in 2010 — operated by No. 1 Squadron at RAAF Amberley in Queensland. The Super Hornets provide RAAF strike, anti-ship, and tactical air-superiority capability complementing the F-35A force, and importantly the RAAF also operates the EA-18G Growler electronic-attack variant — making the RAAF the only Growler operator outside the US Navy. For US Navy VFA and VAQ squadrons operating in the Indo-Pacific, the RAAF Super Hornet and Growler force at Amberley is uniquely close — same airframe, same combat systems, common tactical vocabulary, and continuous exercise integration. The depth of US Navy-RAAF cooperation on the Growler community alone is one of the more distinctive bilateral aviation relationships in the alliance.

A class of four Deutsche Marine frigates designed for sustained stabilization-mission deployments — lead ship FGS Baden-Wuerttemberg commissioned 2019 — high level of automation enabling reduced crew complement compared to prior frigate classes — designed for two-year deployment cycles with crew rotations rather than ship rotations — armed with the 127mm OTO Melara main gun, RAM point defence, Harpoon anti-ship missiles, and supporting weapons — had significant first-of-class teething issues that generated institutional debate during the early years of service.

"F125 Baden-Wuerttemberg — 4 German frigates, designed for sustained stabilization missions, lead 2019."

The F125 Baden-Wuerttemberg-class is the Deutsche Marine's stabilization-mission frigate class — four ships designed specifically for sustained two-year deployments to stabilization theaters with crew rotations rather than ship rotations. Lead ship FGS Baden-Wuerttemberg commissioned in 2019, with the high level of automation enabling a reduced crew compared to prior German frigate classes. The institutional concept behind the class was distinctive: rather than designing for high-intensity blue-water combat, F125 was designed for the kind of sustained presence-and-stabilization mission the Marine had encountered in Operation Atalanta (anti-piracy off the Horn of Africa) and similar deployments. The class had significant first-of-class teething issues that generated Bundestag scrutiny and institutional debate during the early years of service. For a US Navy partner, the F125 is closer to the role concept of the Independence-class LCS in the sustained-presence mission, though the actual platform is a different ship altogether.

The Deutsche Marine's next-generation frigate program — under contract since 2020 to a Damen Shipyards-led consortium (with German partners Blohm+Voss and Thales Deutschland) — planned six ships replacing the legacy F123 Brandenburg-class and supplementing the broader Deutsche Marine surface fleet — designed for high-end blue-water multi-mission capability with anti-submarine warfare, anti-surface warfare, anti-air warfare, and land-attack missions — first ship delivery planned for the late 2020s.

"F126 — German next-generation frigate (6 ships), Damen-led consortium, blue-water multi-mission."

The F126 is the Deutsche Marine's next-generation frigate program — the new high-end multi-mission frigate class under contract since 2020 to a Damen Shipyards-led consortium (with German partners Blohm+Voss and Thales Deutschland). Six ships are planned, with first delivery in the late 2020s. The institutional shift from F125 to F126 is significant: where F125 was designed specifically for sustained stabilization missions, F126 is designed for high-end blue-water multi-mission capability across anti-submarine warfare, anti-surface warfare, anti-air warfare, and land-attack missions — reflecting the post-2022 Zeitenwende posture shift back toward high-end conflict capability against a peer-competitor threat. For a US Navy partner, the F126 is closer in concept to the Constellation-class FFG that is replacing the older US frigate role — high-end blue-water multi-mission frigates, rather than the lower-intensity littoral combat role the F125 occupied.

A canceled US Army program to develop the successor to the legacy OH-58D Kiowa Warrior armed reconnaissance helicopter (retired 2017) and to provide armed reconnaissance capability alongside the AH-64 Apache attack helicopter — Bell 360 Invictus and Sikorsky Raider X were the competing prototype designs — canceled in February 2024 after technical and schedule challenges, with the broader armed reconnaissance mission shifting to Apache and UAS combinations.

"The FARA program — Kiowa Warrior successor, canceled February 2024."

FARA (Future Attack Reconnaissance Aircraft) is the program that was supposed to provide a new armed reconnaissance helicopter — the successor to the legacy OH-58D Kiowa Warrior (retired 2017) and a complement to the AH-64E Apache attack helicopter. Bell 360 Invictus and Sikorsky Raider X were the competing prototype designs. The Army canceled the program in February 2024 after persistent technical and schedule challenges; the broader armed reconnaissance mission is being addressed through Apache modernization, UAS combinations (MQ-1C Gray Eagle and emerging UAS), and other approaches. FARA's cancellation was a high-visibility program loss for AFC and shaped continuing debates about Army FVL portfolio decisions.

An imaging sensor that detects infrared (thermal) radiation emitted by objects and produces a real-time image based on temperature differences in the scene — used for night and degraded-visibility surveillance, target acquisition, navigation, and weapons targeting on aircraft, ground vehicles, ships, and dismounted platforms across the joint force.

"FLIR — the thermal-imaging sensor that turns heat differences into a usable image day or night."

FLIR is the sensor that made the modern night fight possible. A FLIR turret on an Apache or a targeting pod on an F-16, the commander's independent thermal viewer on an Abrams, the thermal sight on a Bradley, the gunner's thermal sight on a CROWS remote weapon station, the handheld thermal monocular a scout uses to clear a treeline — all the same physics, just packaged for the platform. The technology moved from first-generation cooled scanners to second and third-generation staring focal plane arrays, and is now in the small-uncooled microbolometer regime that put thermal imaging on commercial drones. The trade-offs the operator actually cares about are resolution at range (can you ID a person at 1,000 meters), cooldown time (do you have to wait for the dewar), and the heat signature your own platform throws back. FLIR is on the short list of US technical advantages adversaries have spent two decades trying to close.

A ship-loading and unloading technique in which a heavy-lift vessel partially submerges to allow large, self-buoyant cargo (floating dry docks, surface ships, modular causeway sections, large floating structures) to float onto or off of the deck — used for strategic sealift of cargoes too large for roll-on/roll-off, lift-on/lift-off, or container-ship configurations.

"FLO/FLO — the heavy-lift sealift technique that floats ships onto bigger ships for ocean transport."

FLO/FLO is the niche but irreplaceable sealift technique that solves the problem of "how do you move a thing that is too big to lift onto a ship across an ocean." The heavy-lift float-on/float-off vessel partially submerges its cargo deck by ballasting down, the floating cargo (a damaged warship, a floating dry dock, a modular causeway, a portion of the Mulberry-harbor-style port-opening equipment, a piece of strategic infrastructure) is towed onto the deck, the carrier deballasts and lifts the cargo out of the water, and the whole stack steams across an ocean. US Military Sealift Command and commercial heavy-lift operators run a small fleet of these ships, and they show up in real operations to move damaged combatants home, to move modular ports forward, and to support amphibious force closure. RO/RO and LO/LO get more attention, but FLO/FLO is what closes the seam when neither of those work.

A US Army program to develop the successor to the UH-60 Black Hawk assault helicopter — Bell V-280 Valor tiltrotor selected December 2022 over the Sikorsky/Boeing SB-1 Defiant compound coaxial helicopter — designed to provide significantly higher speed and range than the Black Hawk while maintaining similar troop-carrying capacity — initial production targeted for the late 2020s with full operational capability in the 2030s.

"The Black Hawk successor — Bell V-280 Valor tiltrotor, selected 2022."

FLRAA (Future Long-Range Assault Aircraft) is the Black Hawk successor — the Bell V-280 Valor tiltrotor was selected in December 2022 over the Sikorsky/Boeing SB-1 Defiant compound coaxial helicopter design. The V-280 design uses fixed nacelles with tilting rotors (different from the V-22 Osprey's tilting nacelles), providing significantly higher speed (280-knot cruise vs Black Hawk's 150-160) and range (450+ nautical miles vs Black Hawk's 350-400) while maintaining similar troop-carrying capacity (10-12 soldiers plus crew). Initial production is targeted for the late 2020s with full operational capability in the 2030s. The acquisition replaces the most numerous Army aviation airframe with a fundamentally different aircraft category — a significant force-design change for Army aviation operations.

The US Army family of medium tactical trucks (FMTV), fielded since the early 1990s with continuous modernization (FMTV A0, A1P1, A1P2, A2 variants) — multiple mission variants including the M1078 Light Medium Tactical Vehicle (LMTV, 2.5-ton class), M1083 Medium Tactical Vehicle (MTV, 5-ton class), and many specialty variants (cargo, tractor, wrecker, dump, fuel/water tanker, expansible van) — the workhorse medium tactical truck family of the Army and Marine Corps.

"The FMTV — medium tactical truck family, M1078 LMTV and M1083 MTV variants."

FMTV is the medium tactical truck family that does the everyday work of Army and Marine Corps ground transportation — Oshkosh-built since 2009 (after Stewart & Stevenson built the legacy variants), with continuous modernization across the A0, A1P1, A1P2, and A2 production variants. The mission variants split between the M1078 Light Medium Tactical Vehicle (LMTV, 2.5-ton payload) and the M1083 Medium Tactical Vehicle (MTV, 5-ton payload), each with many specialty configurations (cargo, tractor for towed equipment, wrecker, dump body, fuel and water tankers, expansible vans for shelter mounting). The FMTV fleet is the workhorse for unit-level ground transportation across active and reserve formations.

The Air Force program of record for deployable petroleum-handling, fuels-mobility-support, and aircraft-refueling equipment used by fuels management flights and rapid-deployment fuels teams to establish, sustain, and recover bulk fuel operations at deployed locations across the range of military operations.

"FORCE — the Air Force kit that lets fuels Airmen stand up jet-fuel operations at a deployed location."

FORCE is the equipment side of how the Air Force fuels career field (2F0X1) actually delivers jet fuel to aircraft at a deployed location. The kit set includes the bulk storage bladders, the R-11 refueler trucks, the hydrant fueling system components, the testing and quality-assurance equipment, and the mobility-support packages that a fuels team unloads off a C-17 to stand up bulk fuel operations at a contingency airfield. The lived reality for a fuels Airman is that FORCE is the gear you train on at Fort Lee fuels school, draw from the deployed equipment account, and operate around the clock to keep aircraft turning at a deployed location where there is no host-nation hydrant system. The Agile Combat Employment concept — distributed operations from austere locations — leans heavily on FORCE-class capability to make a hub-and-spoke fuel architecture work at multiple smaller airfields.

The US Navy next-generation nuclear-powered aircraft carrier class, replacing Nimitz-class with significant capability and design improvements — USS Gerald R. Ford (CVN-78) commissioned 2017 (first ship), USS John F. Kennedy (CVN-79) and USS Enterprise (CVN-80) under construction, with planned procurement extending through CVN-82 and beyond — incorporating EMALS Electromagnetic Aircraft Launch System, AAG Advanced Arresting Gear, and other technology upgrades that have driven both capability and program risk.

"The next-gen CVN class — EMALS catapults, AAG arresting gear, CVN-78 first."

Ford-class is the Nimitz-class successor — significantly larger and more capable than Nimitz on paper, with the Electromagnetic Aircraft Launch System (EMALS) replacing the legacy steam catapults, Advanced Arresting Gear (AAG) replacing legacy arresting gear, an upgraded reactor providing more electrical power for future weapons (lasers, rail guns, directed energy), and a smaller crew due to automation. The lead ship USS Gerald R. Ford (CVN-78) commissioned in 2017 but had years of EMALS and AAG reliability problems that delayed full operational capability; the ship completed its first combat deployment in 2022-2023. USS John F. Kennedy (CVN-79) and USS Enterprise (CVN-80) are under construction; CVN-81 and CVN-82 are funded. Program acquisition has been politically contested due to cost overruns and reliability problems on lead ship.

The angular extent of the observable scene visible through an optical, electro-optical, infrared, or radar sensor — typically expressed in degrees or milliradians and inversely related to magnification, with sensor selection trading wide field of view (situational awareness, search) against narrow field of view (target identification, precision).

"FOV — the angle of the world your sight, sensor, or seeker can actually see at any one time."

FOV is one of those terms that sounds trivial until you're on the wrong end of the trade-off. The gunner on a Bradley fighting vehicle has a wide FOV in his daysight and a narrow FOV in his thermal sight; the helicopter pilot in a Apache toggles between the wide-FOV pilot night vision sensor and the narrow-FOV target acquisition designation sight; the UAS operator chooses sensor zoom by the situation. Wide FOV gives you situational awareness and search; narrow FOV gives you identification, precision, and the ability to actually see what you're shooting at. The same trade is everywhere in modern weapon systems — radar, optics, missile seekers, thermal sights, sniper scopes. Knowing the FOV of every sensor on the platform and how to use the magnification cycle is the difference between an operator who finds the target and one who scans past it.

The US Army's modular base-camp set used to establish, expand, or sustain expeditionary base camps — a deployable container-and-tent-based life-support system that provides billeting, food service, laundry, latrine, shower, and morale-welfare-recreation infrastructure scalable from approximately 150 to 3,300 personnel at the deployed location.

"FPE — the Army's containerized base-camp set that stands up tent cities and life support at deployed sites."

FPE is the kit set that turns a patch of desert, a hard-stand at an airfield, or a partner-nation base into a functioning base camp for an Army battalion or brigade. The system arrives in standard ISO containers, expands into tents and prefab modules, and includes billeting (two to a hooch), dining facility infrastructure, laundry, latrine and shower, and the MWR tents that keep a deployed force functional past 90 days. The 92Y supply NCOs and the 12-series engineers who set up an FPE complex spend the first two weeks running grading equipment, generators, and water and waste infrastructure before any of the tents go up. The Army runs FPE through TACOM and the prepositioned-stocks community; combatant commanders draw on the inventory through the joint deployment training and execution system. The modular scaling — from a 150-person camp to a 3,300-person base — is the design feature that makes FPE the workhorse of expeditionary base-camp life support.

The US Coast Guard small patrol cutter class (Sentinel-class, WPC Patrol Coastal/Patrol Cutter hull symbol, beginning WPC-1101 USCGC Bernard C. Webber) — 64+ hulls planned, replacing the legacy Island-class WPB Patrol Boats — built by Bollinger Shipyards (Lockport, Louisiana) — 154-foot patrol cutters providing the Coast Guard's mid-tier coastal and offshore patrol capability.

"The FRC Sentinel-class WPC — 64+ ships, replaces legacy WPB Island-class."

FRC is the small patrol cutter class the Coast Guard fields in volume — the Sentinel-class, hull symbol WPC beginning WPC-1101 USCGC Bernard C. Webber commissioned 2012, 64+ hulls planned and most already delivered. The class replaces the legacy Island-class WPB Patrol Boats that the Coast Guard operated for thirty years. Built by Bollinger Shipyards in Lockport, Louisiana; each FRC is 154 feet long, has a Mk 38 25mm gun and crew-served weapons, embarks a small over-the-horizon cutter boat (OTH-IV), and patrols out to about 200 nautical miles. FRCs are the cutters that do most of the Coast Guard's coastal and offshore patrol work — the everyday drug interdiction, migrant interdiction, fisheries enforcement, and SAR response in the approaches to US ports and the Caribbean. Forward-deployed FRCs in Bahrain (Patrol Forces Southwest Asia, replacing legacy Island-class WPBs there) provide the principal Coast Guard surface presence in the CENTCOM AOR.

A class of Italian Navy multi-mission frigates derived from the joint Franco-Italian FREMM (Frégates Européennes Multi-Missions / Fregate Europee Multi-Missione) programme — also designated the Carlo Bergamini class in Italian service — built by Fincantieri at Riva Trigoso and Muggiano shipyards — provides the Marina Militare's principal escort frigate capability, with variants optimised for general-purpose (GP) and anti-submarine warfare (ASW) roles — the design lineage is the parent for the US Navy's Constellation-class FFG.

"FREMM Italy — Carlo Bergamini-class frigate, FREMM joint programme, parent design for US Constellation-class FFG."

The Italian FREMM (Carlo Bergamini-class) frigates are the Marina Militare's principal escort frigate capability — derived from the joint Franco-Italian FREMM programme of the 2000s and 2010s, built by Fincantieri at the Riva Trigoso and Muggiano yards on the Ligurian coast, with variants optimised for general-purpose (GP) and anti-submarine warfare (ASW) roles. For a US Navy partner, the operationally important fact about the Italian FREMM is its lineage role in the US Constellation-class FFG — the new US frigate programme selected the Italian FREMM as the parent design, with the US Constellation hull form derived from the Carlo Bergamini class adapted for US Navy combat-system and damage-control standards. The Italian-US shipbuilding cooperation through Fincantieri's US subsidiary at Marinette Marine in Wisconsin is one of the most consequential transatlantic naval-industrial relationships of the current decade.

A temporary or semi-permanent bulk fuel facility established forward to receive, store, and dispense bulk petroleum products to consuming units — typically built around collapsible fabric tanks, fuel handling equipment, and aviation or ground fuel dispensing nozzles — operated by petroleum supply personnel to extend the bulk fuel network beyond fixed installations.

"FSSP — the forward bulk fuel point that pushes JP-8 closer to where ground and aviation units actually need it."

FSSP is the bulk-fuel node that lives between the strategic fuel pipeline and the FARP at the tip. Built around 50,000-gallon and 210,000-gallon collapsible fabric tanks, hose reels, pumps, and a petroleum supply specialist crew, the FSSP receives fuel by tanker truck, rail, or pipeline from the rear and dispenses it to aviation FARPs, ground fuel tankers (HEMTT-LHS-fueler, M978 HEMTT tanker), and bulk users. The 92F petroleum supply specialist and the quartermaster bulk fuel community own the discipline; the Marine Corps fuel community runs the equivalent. The fuelers running an FSSP work in JP-8 vapor, around static-electricity risks, often forward enough to hear artillery — the operational tempo is unglamorous and constant. Every aviation operation, every armored maneuver, every long-range fires mission depends on a chain of FSSPs nobody outside the petroleum world thinks about until the fuel doesn't arrive.

The US Missile Defense Agency's ground-launched exo-atmospheric kinetic-kill interceptor (in the GMD system), with a three-stage solid rocket booster and the Exoatmospheric Kill Vehicle (EKV) — currently fielded at Fort Greely, Alaska and Vandenberg SFB, California — being supplemented and partially replaced by the Next Generation Interceptor (NGI) program in the late 2020s.

"The GMD interceptor missile — three-stage booster, exo-atmospheric kill vehicle."

GBI is the actual missile that GMD launches — a three-stage booster that puts the Exoatmospheric Kill Vehicle (EKV) into the path of an incoming ICBM warhead for hit-to-kill engagement. The EKV is the difficult engineering — a small spacecraft that has to navigate to a precise intercept point at orbital velocities and physically collide with the warhead. GBI's test record is mixed (some successful intercepts, some failed); the NGI program is the planned replacement and offers improved kill vehicle capability and multi-kill-vehicle architecture. GBI is the inventory that defends the homeland today; NGI is the planned future.

A chemistry analytical method combining gas chromatography (which separates the components of a chemical mixture) with mass spectrometry (which identifies the molecular structure of each separated component) — the laboratory technique that provides confirmatory identification of chemical and biological warfare agents, environmental samples, and pharmaceutical-grade detection — the gold standard for definitive identification of chemical agents in joint chemical-biological defense and consequence-management operations.

"GC-MS — the lab method that confirms chemical agent identification."

GC-MS is the lab method that turns a field-level "this presumptively tests positive for nerve agent" into a definitive "this is sarin." A field detection kit, a CAM, or a JCAD gives you a presumptive identification under operational time pressure; GC-MS in a fixed or deployable analytical lab gives you the confirmatory answer that legal, medical, and operational consequence chains require. The technique combines two analytical steps: gas chromatography separates the components of a sample into individual chemical species over time; mass spectrometry then characterizes each component by its molecular structure. Together they produce a chemical fingerprint that is the closest the chemistry world gets to a definitive answer. CBRN companies, AFTAC sniffer aircraft analytical chains, and theater medical labs use GC-MS for confirmatory chemical agent identification.

A night vision technology (gated laser intensifier) that combines an active laser illuminator with a gated image intensifier tube — by pulsing the laser and electronically gating the receiver to accept reflections only from a narrow range gate, the system can image targets at long range while rejecting backscatter from intervening atmosphere, foliage, or smoke.

"Active-laser night vision that pulses and range-gates to defeat backscatter."

GLINT is a niche but operationally significant night-vision technique — instead of the passive image-intensification that ordinary night vision goggles use (amplifying ambient light), a gated laser intensifier pulses a laser at the scene and synchronizes the receiver to accept only the light returning from a specific range slice. The advantage is that atmospheric haze, smoke, fog, and foliage backscatter (which would wash out a passive system or even a pure-active illuminator) get rejected because they're outside the range gate. GLINT systems are found in specialized observation and targeting devices — long-range reconnaissance optics, certain weapon sights, some UAS payloads — and are less common at the dismounted-infantry level. The trade-off is complexity, power, and cost; the win is seeing through conditions where simpler night vision can't.

The Russian Federation-operated global navigation satellite system (Globalnaya Navigatsionnaya Sputnikovaya Sistema, transliterated GLONASS), consisting of a medium Earth orbit constellation providing position, navigation, and timing services worldwide — Russia's sovereign counterpart to the US GPS, the European Galileo, and the Chinese BeiDou.

"The Russian satellite navigation constellation — counterpart to GPS, Galileo, BeiDou."

GLONASS is Russia's sovereign satellite navigation constellation — operationally relevant because it's the second-oldest deployed GNSS, because multi-constellation civil receivers worldwide can use it, and because in the electronic-warfare context Russian forces and their GNSS-aided weapons depend on it. The constellation has gone through periods of degradation (the post-Soviet 1990s left it nearly non-functional) and recapitalization (the 2000s-2010s rebuild brought it back to nominal coverage), and Western analysts watch its launch cadence and on-orbit status as one of the indicators of Russian space-industry health. For US service members, awareness of GLONASS matters mostly in EW, space-domain awareness, and adversary-weapon analysis contexts; the day-to-day military-PNT use case is GPS M-code.

A man-portable or vehicle-mounted laser system (ground laser target designator) used by forward observers, joint terminal attack controllers, and special operations forces to mark targets for laser-guided munitions (LGBs, Hellfire, APKWS, GBU-series) delivered by air or surface platforms — provides the terminal-guidance laser energy that the weapon's seeker tracks.

"The handheld or tripod laser that marks targets for laser-guided weapons."

GLTD is the device that puts the laser dot on the target — a JTAC or forward observer aims it, the laser-guided bomb or Hellfire missile sees the reflected laser energy, and the weapon flies to where the dot is. Common platforms include the AN/PEQ-1 SOFLAM, the LLDR (Lightweight Laser Designator Rangefinder), and the newer Joint Effects Targeting System (JETS) family. The system requires the operator to maintain laser-on-target through impact, which means staying exposed enough to see the target throughout the engagement — one of the reasons JTAC and FO tasks are physically and tactically demanding. PRF code coordination (matching the GLTD's pulse repetition frequency to the weapon's seeker) is one of the technical details that has to be right or the weapon goes nowhere.

The generic doctrinal term (global navigation satellite system) for any space-based positioning, navigation, and timing constellation — encompassing the US GPS, Russian GLONASS, European Galileo, Chinese BeiDou, and regional systems (Japanese QZSS, Indian NavIC) — used when the reference is to satellite-PNT broadly rather than to one specific constellation.

"The generic term for any satellite navigation constellation (GPS, GLONASS, Galileo, BeiDou)."

GNSS is the umbrella term you use when the technical question is about satellite navigation generally rather than the US GPS specifically — relevant because a modern multi-constellation receiver can pull signals from GPS, Galileo, BeiDou, and GLONASS simultaneously, and for some accuracy or availability problems that diversity matters. Operationally, the joint force standardizes on GPS for the military signal (M-code), but allied systems and partner-force equipment may use multi-GNSS receivers, and the broader civil/commercial ecosystem (the maps in your phone, the timing in cellular networks) is fundamentally multi-GNSS now. The term shows up in spectrum-management, electronic-warfare, and acquisition discussions where the precision between "GPS" and "GNSS" matters.

A dual-meaning DoD Dictionary entry: (1) gallons per minute, the standard flow-rate unit used across fuel distribution, water purification, and firefighting capability statements; and (2) Global Pallet Manager, the enterprise system that tracks 463L pallets, nets, and aerial delivery equipment across the Defense Transportation System to prevent loss of mobility assets.

"Either fuel/water flow rate or the 463L pallet tracking system, depending on context."

Two completely different things sharing one acronym. As a flow rate, GPM is how fuel and water capability is sized — a forward arming and refueling point will be specified in GPM of fuel issued, a ROWPU water purification unit in GPM of potable water produced, a firefighting truck in GPM of pump capacity. As Global Pallet Manager, GPM is the joint enterprise system that tracks the 463L pallets and cargo nets that move every air-shipped piece of military equipment — historically the joint force lost staggering numbers of pallets to forward bases, unit hand-receipts, and "borrowed" status, and GPM is the system trying to keep that accountability tight. Which meaning is in play is almost always clear from context.

The US Space Force-operated global navigation satellite constellation (Global Positioning System) consisting of approximately 31 operational satellites in medium Earth orbit, providing position, navigation, and timing (PNT) data to military (encrypted, M-code and previously P(Y)-code) and civil (unencrypted, C/A code) users worldwide — operated by the 2nd Space Operations Squadron (2SOPS) at Schriever Space Force Base.

"The Space Force-run satellite navigation constellation — military M-code plus civil signal."

GPS is the satellite-based position, navigation, and timing service that the entire joint force has spent thirty years building dependencies on — every weapon with a GPS-aided guidance kit, every aircraft, every dismounted soldier with a DAGR, every networked radio that needs timing all leans on the same constellation operated out of Schriever by 2SOPS. The military signal is M-code (replacing the older P(Y)-code), which is encrypted, anti-spoof, and meant to be jam-resistant relative to the civil C/A code. The peer-adversary jamming and spoofing threat against GPS has become a serious operational concern — Ukraine and the Middle East have made GPS denial routine — which is driving alt-PNT investments (M-code receivers, anti-jam antennas, inertial-and-celestial backups, terrestrial alternates). The constellation is also one of the most consequential dual-use systems in modern infrastructure.

The US Space Force-operated modernized Global Positioning System satellites (GPS III SVs 1 through 10, with follow-on GPS IIIF), providing all civil GPS signals (L1 C/A, L1C, L2C, L5) and the modernized military M-Code signal at higher signal strength, with improved anti-jam characteristics and longer design life — first GPS III satellite launched December 2018, with launches continuing through the mid-2020s.

"The modernized GPS satellites — better signals, stronger M-Code, longer life."

GPS III is the modernized generation of the constellation that the rest of the world depends on for positioning, navigation, and timing — stronger M-Code military signal for anti-jam performance, the modern L1C civil signal (interoperable with European Galileo), longer design life, and improved on-orbit characteristics generally. The follow-on GPS IIIF satellites add the Search-and-Rescue payload, the Regional Military Protection capability, and other upgrades. The GPS constellation as a whole is a strategic asset that the joint force (and the global economy) depends on; modernization is incremental as new satellites replace legacy ones. The ground control segment modernization (OCX) has been a separate program with its own complex acquisition history.

The US Space Force follow-on production of GPS Block III satellites (GPS IIIF SVs 11 through 20), incorporating additional capabilities including the Search and Rescue payload (international SAR contribution), Regional Military Protection (anti-jam), the Laser Retroreflector Array (geodesy), and a Nuclear Detonation Detection System (NUDET) payload — Lockheed Martin prime, with launches planned for the mid-to-late 2020s through the early 2030s.

"The follow-on GPS III satellites — SAR payload, regional anti-jam, NUDET sensors."

GPS IIIF is the next production batch of GPS III satellites, with capability additions over the baseline GPS III — international Search and Rescue capability (contribution to the COSPAS-SARSAT system), Regional Military Protection (anti-jam capability targeted to specific theaters), the geodesy laser retroreflector, and a nuclear detonation detection payload. Lockheed Martin is the prime; launches are planned through the late 2020s and into the 2030s. As GPS III/IIIF replaces legacy GPS satellites, the constellation as a whole improves in capability and resilience; the transition will take a decade or more as legacy spacecraft are decommissioned and replaced.

The US Navy electronic-attack carrier-based aircraft (EA-18G Growler), Boeing prime, derived from the F/A-18F Super Hornet airframe with the AN/ALQ-218 wideband receiver and the AN/ALQ-99 jamming pods (transitioning to the Next Generation Jammer NGJ-MB and NGJ-LB pods) — the principal US joint electronic-attack platform after the retirement of the EA-6B Prowler in 2019 — operating from carrier air wings and from VAQ Marine expeditionary detachments.

"The Navy EW aircraft — carries the SEAD/electronic-attack mission, replaced EA-6B."

Growler is the carrier-based electronic-attack aircraft — Super Hornet airframe modified with the AN/ALQ-218 wideband receiver, the legacy AN/ALQ-99 jamming pods being replaced by the Next Generation Jammer (NGJ), and HARM anti-radiation missiles for kinetic SEAD effects. The aircraft is the joint force's principal electronic-attack platform after the retirement of the EA-6B Prowler in 2019; Navy expeditionary VAQ squadrons (operating from carrier air wings and from forward-deployed land bases) provide the joint electronic-attack capability across multiple theaters. The Australian Royal Australian Air Force is the only other Growler operator, with a small but significant fleet for combined operations.

A category of tactical radar systems (ground surveillance radar) designed to detect and track moving personnel, vehicles, and low-flying aircraft at ground level — used by infantry and cavalry reconnaissance elements, base security forces, and intelligence elements to extend surveillance coverage at night and through obscurants beyond what optical and thermal sensors can provide.

"Tactical radar that detects moving personnel and vehicles on the ground."

GSR is the radar an MI or infantry reconnaissance element uses to watch a piece of ground for movement when human eyes (even with night vision and thermals) can't — the radar picks up the Doppler shift of moving troops and vehicles and gives an operator detections at ranges out to several kilometers depending on the system. Historically the Army fielded the AN/PPS-5 and AN/PPS-15 man-portable GSR systems through the Cold War; the modern equivalents are smaller, more sensitive, and often integrated with electro-optical and thermal sensors into multi-sensor surveillance suites (LRAS3, CROWS-J, base perimeter systems). For a base defense element, GSR is one of the layers that lets a small force watch a large perimeter through a long night.

A US Space Force constellation of satellites in geosynchronous near-orbit (slightly above and below the GEO belt) providing space domain awareness of objects in geosynchronous orbit — including the ability to maneuver close to other satellites for detailed characterization — operational since 2014 with the GSSAP-1 and GSSAP-2 satellite pair and follow-on launches expanding the constellation.

"The GEO inspection satellites — characterize objects in GEO from up close."

GSSAP is the space-based sensor program that does in GEO what ground-based radars and telescopes do in LEO — characterize objects in geosynchronous orbit with the unique ability of GSSAP satellites to maneuver close enough to other satellites to image them in detail. The program was unusual when first publicly disclosed in 2014 because the close-approach capability had been previously kept classified. GSSAP satellites have been used to characterize adversary GEO satellites and to monitor the GEO belt for unusual activity. The program continues to expand with additional satellite launches and is one of the principal sources of GEO space domain awareness data.

A class of twelve Royal Canadian Navy general-purpose frigates — designated by hull pennant numbers in the FFH 330-series — built by Saint John Shipbuilding and MIL Davie in the 1990s — designed for multi-purpose general-purpose frigate roles including anti-submarine warfare, anti-surface warfare, and area air defence — currently the RCN's principal surface combatant force pending the Canadian Surface Combatant Type-26 derivative replacement programme — has undergone the Halifax-class Modernization (FELEX) midlife refit programme to extend service life.

"Halifax-class — RCN current frigate force (12 ships), FELEX-modernized, CSC successor planned."

The Halifax-class are the RCN's current frigate force — twelve general-purpose FFH frigates (HMCS Halifax and eleven sister ships), built by Saint John Shipbuilding and MIL Davie in the 1990s, designed for multi-purpose general-purpose frigate roles. The Halifax-class Modernization (FELEX) midlife refit programme extended service life and upgraded the combat systems through the 2010s. For a US Navy partner, the Halifax-class are familiar through decades of combined NATO Atlantic operations, Standing NATO Maritime Group rotations, and the ongoing Indo-Pacific exercise enterprise as the RCN has expanded its Pacific posture. The class is approaching the end of its life cycle and is scheduled for replacement by the Canadian Surface Combatant (CSC) Type-26 derivative programme through the 2030s — a major programme that aligns RCN with the UK Type 26 and Australian Hunter-class derivatives in a three-nation interoperability community.

A US Government individual food ration (humanitarian daily ration) designed for distribution to displaced persons and refugee populations during humanitarian emergencies — provides approximately 2,200 kilocalories per day in a vegetarian, religiously and culturally neutral configuration intended to be acceptable across populations of various dietary requirements.

"The vegetarian ration designed to be acceptable across cultures in a humanitarian crisis."

HDR is the ration the US drops or ships into a humanitarian emergency when you do not know the dietary or religious restrictions of the population that will eat it. Vegetarian (so it is acceptable to populations that do not eat beef, pork, or non-halal/non-kosher meat), approximately 2,200 calories per day, in a brightly colored package that is intentionally not the same color as cluster submunitions (a lesson from Afghanistan in 2001 when yellow HDR packages were dropped in the same areas as yellow BLU-97 submunitions). HDRs are stockpiled by USAID and DoD for rapid distribution; they show up in C-17 airdrops, in pre-positioned stocks, and in the back of trucks moving into refugee receiving areas. The ration is not designed for long-term feeding; it bridges the gap until normal humanitarian food assistance can stand up.

The US Army eight-wheel heavy tactical truck family (HEMTT, Oshkosh prime), fielded since 1982 with continuous modernization (M977A1, A2, A4 variants in production) — multiple mission variants including M977 cargo, M978 fuel tanker (2,500 gallon), M983 PLS prime mover, M984 wrecker, M985 cargo with crane, M1120 PLS load handling system, M983A4 LET HIMARS launcher transporter — the workhorse heavy tactical truck of the joint force.

"The HEMTT — heavy 8x8 tactical truck family, cargo/fuel/wrecker/HIMARS variants."

HEMTT is the heavy tactical truck family that does most of the joint force's heavy-truck work — Oshkosh-built 8x8 family in continuous production since 1982 with multiple modernization variants (M977A1 through A4). The mission variants cover cargo (M977), fuel tanker (M978 with 2,500-gallon capacity), prime mover (M983 for towed equipment), wrecker (M984), crane-equipped cargo (M985), and the HIMARS launcher transporter (M983A4 LET) — among other configurations. The truck is large (about 30 feet long, 33,000 lbs empty), powerful, and capable of significant cross-country mobility. Every Army and Marine Corps formation has HEMTTs in its support structure; the truck is part of the everyday landscape of joint logistics operations.

A family of Israeli unmanned aircraft systems developed by Elbit Systems — comprises multiple variants across the small tactical (Hermes 90), medium tactical (Hermes 450, Hermes 900), and longer-endurance (Hermes 1500, Starliner) range — operational with the IDF and exported widely including to multiple NATO members under various names (Hermes 450 operates with the UK as Watchkeeper WK450, among others) — provides ISR, communications relay, and (in some variants and operator configurations) armed strike capability.

"Hermes — Elbit Systems UAS family, widely exported including to NATO members."

Hermes is the Elbit Systems family of unmanned aircraft systems — one of the more widely exported UAS families globally, with variants across the small-tactical to longer-endurance range. The Hermes 450 is the workhorse of the family — operational with the IDF since the late 1990s, exported to multiple NATO members and other allied operators (the UK Army's Watchkeeper WK450 is a Thales-modified Hermes 450 derivative). The Hermes 900 is the larger MALE-class follow-on. Mission capability covers ISR, communications relay, and armed-strike configuration in some operator-specific variants. For US Army counterparts evaluating MALE UAS options, Hermes has been a reference platform in the broader UAS market; specific US adoption has been limited, as the US-developed MQ-1/MQ-9 and Gray Eagle lines have filled the equivalent US roles. The Israeli UAS industry (Elbit, IAI, and others) is one of the deepest in any allied nation.

A family of Israeli medium-altitude long-endurance (MALE) unmanned aircraft systems developed by Israel Aerospace Industries (IAI) — comprises the Heron 1 (operational with the IDF since the early 2000s) and the larger Heron TP (Eitan) — exported to multiple allied nations including Germany, India, Canada (lease arrangement), and Australia — provides long-endurance ISR, communications relay, maritime patrol (in some variants), and armed-strike capability (in some operator configurations).

"Heron — IAI MALE UAS family, Heron 1 and Heron TP variants, broadly exported."

Heron is the Israel Aerospace Industries family of medium-altitude long-endurance unmanned aircraft systems — the IAI counterpart to Elbit's Hermes line in the broader Israeli UAS industry. The Heron 1 is the workhorse variant, operational with the IDF since the early 2000s and exported to Germany, India, Canada (under a lease arrangement that supported Afghanistan operations), Australia, and other allied operators. The Heron TP (also known as Eitan) is the larger follow-on with extended endurance and payload capacity, in service with the IDF and several export operators. Mission capability spans long-endurance ISR, communications relay, maritime patrol in some variants, and armed-strike configuration in some operator-specific variants. For US Army and US Air Force counterparts, the Heron line has been a reference platform in the broader allied UAS market; US adoption has been limited as US-developed UAS platforms have filled the equivalent roles.

The US Army heavy equipment transporter system (M1070 truck tractor and M1000 trailer), Oshkosh prime, designed to transport M1 Abrams main battle tanks and other heavy equipment — payload capacity approximately 70 tons — used by HET companies in transportation battalions to move armored vehicles between training areas, ports, and forward deployment locations.

"The HET — M1070 truck and M1000 trailer, hauls Abrams tanks."

HET is the heavy equipment transporter the Army uses to move Abrams tanks — the M1070 truck tractor (a massive 8x8 cab) and the M1000 5-axle trailer, together providing approximately 70 tons of payload capacity. HET companies in transportation battalions move tanks between training areas, between rail/sea ports of embarkation and operational locations, and to forward deployment sites. The system replaced the legacy M911 / M747 system in the 1990s. HETs are essential to Army strategic mobility — without them, moving the heavy fleet at scale requires extensive rail or sea-lift, and tactical-level heavy equipment movement is impossible. The Army maintains active-component and Reserve Component HET fleets and capability.

A munition response classification (high-explosive violent reaction) on the IM (Insensitive Munitions) response spectrum — denotes a reaction in which the explosive deflagrates rapidly but does not detonate fully, producing significant blast and fragmentation but at lower energy than a full detonation — one of several reaction-severity categories used in insensitive munitions testing.

"A munition reaction less severe than full detonation but more violent than burning."

HEVR is one of the response categories in the insensitive munitions (IM) framework — the spectrum that runs from Type I (Detonation) down through Type II (Partial Detonation), Type III (Explosion / HEVR), Type IV (Deflagration), Type V (Burning), and Type VI (No Reaction). HEVR sits in the middle of the spectrum: more violent than a slow burn, less catastrophic than a full detonation. The IM testing regime (fast cook-off, slow cook-off, bullet impact, fragment impact, shaped-charge jet, sympathetic detonation) drives weapons designers to engineer munitions whose worst-credible reaction stays at HEVR or below — which dramatically reduces shipboard magazine risk, ammunition truck convoy risk, and the consequences of an aircraft fire. For an ordnance handler the framework is invisible day-to-day but it is the reason modern munitions are dramatically safer than their Cold War predecessors.

The US Air Force combat search and rescue helicopter family — the legacy HH-60G Pave Hawk derived from the UH-60 Black Hawk airframe, and the modern HH-60W Jolly Green II purpose-built variant replacing Pave Hawk in production — providing aircrew recovery and isolated personnel rescue in hostile or denied environments, with extended-range refueling capability and crew-served weapons for self-defense.

"The Air Force CSAR helicopter — HH-60G Pave Hawk and HH-60W Jolly Green II."

HH-60 is the Air Force CSAR helicopter — combat search and rescue specifically, recovering aircrew and isolated personnel from denied or hostile environments. The legacy HH-60G Pave Hawk has been the principal CSAR platform for decades; the HH-60W Jolly Green II (purpose-built rather than UH-60-derived) is the modernized successor entering service through the 2020s. The mission set requires range (via aerial refueling from MC-130), survivability (defensive systems, terrain-following, low-level operations), and the ability to land in austere conditions. CSAR squadrons (Air Combat Command and Reserve/Guard wings) operate the type. The aircraft is also operated by FMS customers for similar missions; Royal Air Force ASW/SAR helicopters share lineage and operational concepts.

A pilot helmet-integrated targeting and situational awareness device (helmet-mounted cueing system) that displays flight, weapons, and sensor information on the helmet visor and slaves sensors and weapons to the pilot's line of sight — allows off-boresight weapon employment and reduces the need to maneuver the aircraft to point at a target.

"The fighter pilot helmet that slaves weapons and sensors to line of sight."

HMCS is the umbrella category for fighter-pilot helmets that put critical information on the visor and let the pilot cue weapons and sensors by looking at a target rather than having to maneuver the jet to point at it. Joint Helmet Mounted Cueing System (JHMCS) is the long-serving variant fielded on F-15, F-16, and F/A-18; the F-35 Helmet Mounted Display System is a more capable purpose-built helmet integrated with the jet's sensor fusion. The off-boresight capability paired with AIM-9X high-off-boresight missiles changed the within-visual-range fight dramatically — the pilot looks at the bandit, the missile sees what the pilot sees, the shot opportunity opens at angles that would have been impossible with a boresight-only sight. For a fighter pilot, the helmet is one of the most personally fitted pieces of equipment they own.

A DoD-wide automated system (Hazardous Material Information Resource System) that provides authoritative Safety Data Sheets (SDS) and hazardous material information for materials in the DoD supply system — managed by the Defense Logistics Agency and accessed across the joint force by safety, environmental, transportation, and supply personnel.

"The DoD-wide authoritative database of safety data sheets for hazardous materials."

HMIRS is where the Safety Data Sheets live — the authoritative DoD source for the SDS (formerly MSDS) on every hazardous material in the supply system, from jet fuel and hydraulic fluid to cleaning solvents, lithium battery cells, and ammunition propellants. DLA owns the system; safety officers, environmental personnel, transportation specialists, and supply NCOs query it daily to determine handling, storage, transportation, and disposal requirements for a given NSN. For a unit safety officer, HMIRS is the system you check when a soldier asks "is this cleaner OK to use here?" or when you build the unit hazcom training; for transportation personnel, it's how you build the shipper's declaration for an air shipment. The system is unglamorous and essential — when it is down, hazmat operations get harder fast.

The US joint multi-mission light tactical vehicle (HMMWV, "Humvee"), AM General prime, fielded since 1985 across virtually every joint Service and allied force — over 280,000 produced — being progressively replaced by the JLTV in close-combat formations but retained in numerous support and Reserve Component roles, with the legacy fleet continuing to serve for the foreseeable future.

"The Humvee — the joint light tactical vehicle, JLTV replacement for combat roles."

HMMWV (everyone calls it "Humvee") is the joint light tactical vehicle that has been everywhere since 1985 — AM General-built, over 280,000 produced across many variants (cargo, troop carrier, weapons-mount, ambulance, shelter carrier, prime mover, and many specialty configurations). The Humvee replaced the legacy M151 jeep family in the 1980s and became ubiquitous through Desert Storm, Bosnia, Iraq, Afghanistan, and many other operations. The IED threat in Iraq exposed the Humvee's vulnerability and drove first the up-armored Humvee program, then the broader MRAP family, and ultimately JLTV. HMMWV is being replaced by JLTV in close-combat roles but retained in support, training, motor pool, and many Reserve Component applications; the fleet will be around for decades.

A class of three Royal Australian Navy guided-missile destroyers — HMAS Hobart (DDG-39), HMAS Brisbane (DDG-41), and HMAS Sydney (DDG-42) — commissioned 2017, 2018, and 2020 respectively — derived from the Spanish Navantia F100 design adapted for Australian requirements with the Aegis combat system and SM-2 / ESSM / SM-6 missile armament — provides the RAN with its principal area air-defence capability.

"Hobart-class — RAN Aegis DDGs (3 ships), Spanish F100 design with US Aegis combat system."

The Hobart-class are the RAN's Aegis-equipped guided-missile destroyers — three ships (HMAS Hobart, Brisbane, Sydney), commissioned 2017-2020, derived from the Spanish Navantia F100 design with the US Aegis combat system and SM-2 / ESSM / SM-6 missile loadout. The class provides the RAN's principal area air-defence capability and integrates closely with US Navy task groups and with the JMSDF Kongo/Atago/Maya Aegis destroyer community — common combat system, common missile families, common doctrinal vocabulary. For a US Navy partner, the Hobart-class is one of the most operationally interoperable allied surface combatants — Aegis ships built to be interoperable from the start, with continuous combined exercise integration. The future Hunter-class frigate programme will replace the Anzac-class frigates and complement the Hobart-class DDGs.

A naval vessel category (high-speed transport) historically applied to converted destroyer escorts and other ships configured for the rapid lift of small landing forces — in modern usage often associated with the Expeditionary Fast Transport (T-EPF) class formerly designated Joint High-Speed Vessel (JHSV).

"A naval high-speed lift category — modern usage points to the T-EPF / former JHSV class."

HST is a category label that has had several physical manifestations over the decades. In the World War II era HST referred to converted destroyer escort hulls used to land small Marine and Army elements rapidly. In modern joint usage the relevant ship is the Spearhead-class Expeditionary Fast Transport (T-EPF), originally designated Joint High-Speed Vessel (JHSV) — a 338-foot aluminum catamaran capable of approximately 35-plus knots carrying roughly a company-equivalent force with vehicles and equipment. Military Sealift Command operates the T-EPF fleet, which has been employed across SOUTHCOM partner-nation engagement, AFRICOM theater security cooperation, and intra-theater lift roles. The platform is faster than legacy amphibious shipping but lightly built and not configured for opposed landings.

A category designator (high-speed vessel) applied to commercial-derivative aluminum catamaran and similar high-speed monohull ships chartered or operated by the Navy and Military Sealift Command for intra-theater lift, mine warfare adjunct missions, and partner-nation engagement — historically associated with the HSV-X1 Joint Venture, HSV-2 Swift, and predecessor platforms to the current Expeditionary Fast Transport class.

"The commercial-derivative high-speed catamaran category — predecessor concept to T-EPF."

HSV is the broader category and the historical name for the commercial-derivative high-speed catamaran experiments the Navy and Army ran in the 2000s — HSV-X1 Joint Venture, HSV-2 Swift, and TSV-1X Spearhead were the visible platforms that proved the concept of using fast aluminum catamarans for intra-theater lift, mine warfare hosting, and partner-nation engagement. The lessons from those experiments fed directly into the Joint High-Speed Vessel program that became today's T-EPF / Expeditionary Fast Transport. For a Navy or Marine officer who served in the late 2000s, HSV-2 Swift is a name attached to specific deployments in Africa and the Caribbean; for younger officers, HSV is mostly a doctrinal placeholder pointing to the T-EPF.

The Royal Australian Navy's future frigate programme — a derivative of the UK Type 26 City-class frigate design, developed by BAE Systems Australia under the SEA 5000 Future Frigate Programme — intended as the replacement for the Anzac-class general-purpose frigates — primary mission set is anti-submarine warfare with the Aegis combat system integrated for area air defence — first ship anticipated to enter service in the early 2030s, with the programme having undergone scope and timeline review under the 2023 Defence Strategic Review and subsequent reviews.

"Hunter-class — RAN future frigate, Type 26 derivative, ASW-focused with Aegis integration."

The Hunter-class is the RAN's future frigate programme — a Type 26 derivative (the same UK-designed parent hull as the British City-class and the Canadian River-class), built by BAE Systems Australia at Osborne in South Australia under the SEA 5000 Future Frigate Programme. The class is intended to replace the Anzac-class general-purpose frigates with a frigate optimized for anti-submarine warfare and equipped with the Aegis combat system for the area-air-defence contribution. The programme has been politically contested in scope and timeline — the 2023 Defence Strategic Review and subsequent surface combatant reviews resulted in adjustments to the number of ships and the broader fleet structure. First-of-class entry into service is anticipated in the early 2030s. For a US Navy partner, the Hunter-class will join the Type 26 family alongside UK and Canadian variants — a three-nation interoperability community in the making.

A specialized airdrop system (high-velocity container delivery system) used to deliver cargo from tactical airlift aircraft using high-velocity parachutes that allow precise ground impact in restricted drop zones — accepts higher impact loads than low-velocity airdrop and is used primarily for cargo that can tolerate the impact (rations, water, certain ammunition, expendable supplies).

"A high-velocity airdrop system for restricted DZ resupply of impact-tolerant cargo."

HVCDS is one of the airdrop techniques the joint force uses when the drop zone is too small, too restricted by terrain or threat, or too marginal for low-velocity airdrop with G-12 or T-10 parachutes — high-velocity parachutes deliver the cargo faster, which means less drift, a tighter impact dispersion, and a smaller usable DZ at the cost of significantly higher impact loads on the cargo. Class I rations, Class III packaged petroleum products, some Class V ammunition, and other impact-tolerant items go HVCDS; sensitive electronics, medical supplies, and personnel do not. The system is part of the broader Air Mobility Command and Army airborne / aerial delivery community toolkit, with the riggers at Fort Liberty and Fort Bragg now Fort Liberty being the institutional center of mass.

A precision munition category (inertially aided munition) that uses inertial navigation (often supplemented by GPS) for guidance to a pre-designated target coordinate — distinguished from terminally-guided munitions in that IAMs do not require continuous external designation or terminal seeker lock and can be employed in GPS-denied or contested electromagnetic environments with degraded but useful accuracy.

"A precision munition using inertial nav (often GPS-aided) to a coordinate."

IAM is the category that includes most of the weapons that made the post-2003 way of war possible — JDAM in its many guise (GBU-31, GBU-38, GBU-54 LJDAM, etc.), LRASM's inertial portion, SDB and SDB II in their inertial modes, and a range of artillery and naval rounds. The inertial-plus-GPS configuration gives all-weather, fire-and-forget precision against coordinate targets without requiring a laser designator or a terminal seeker. The IAM concept also matters in the GPS-degraded environment that peer-adversary electronic warfare creates: an IAM with a good inertial measurement unit and a recent GPS update can still produce useful accuracy after losing GPS, where a pure GPS-dependent weapon may not. Weaponeering for IAM employment is its own staff function.

The US Army and Marine Corps body armor system fielded from 1999 onward, consisting of an outer tactical vest (OTV) with soft aramid panels providing fragmentation protection and pockets for Small Arms Protective Insert (SAPI) ceramic plates providing rifle-threat protection — replaced in Army service by the Improved Outer Tactical Vest (IOTV) starting in 2007 and by subsequent plate carrier systems in both services.

"The legacy OTV-and-SAPI body armor system, replaced by IOTV."

IBA is the body armor system most GWOT-era Veterans wore for their first deployments — the OTV (outer tactical vest) with soft aramid panels for fragmentation, plus the SAPI ceramic plates in front, back, and side carriers for rifle threats. It was the system that the early Iraq and Afghanistan deployments ran on, and it was the system the IED threat outgrew — the Army moved to the IOTV around 2007 to fix load-distribution and quick-release issues, and side-plate coverage expanded in response to enemy tactics. A senior NCO who came up in the early 2000s wore IBA; their NCOs wore Ranger Body Armor or PASGT-era flak vests; their soldiers today wear IOTV or plate carriers. The lineage matters because soldiers from each era remember different problems with the kit.

A US Army Northrop Grumman-developed open-architecture air and missile defense command-and-control system, designed to integrate Patriot, Sentinel A4 (LTAMDS replacement target), THAAD, and other sensors and shooters across the Army Integrated Air and Missile Defense (IAMD) architecture — provides the unified C2 layer connecting any-sensor-to-any-shooter capability for layered IAMD — initial operational capability 2022, with continuing capability expansion.

"The Army IAMD command-and-control system — any sensor to any shooter."

IBCS (Integrated Battle Command System) is the open-architecture command-and-control system that gives Army Integrated Air and Missile Defense the "any sensor to any shooter" capability — replacing the legacy Patriot-specific Engagement Control Station with a unified C2 layer that connects across Patriot, Sentinel A4 (eventually LTAMDS-equipped) air defense radars, THAAD, NASAMS, and other sensors and shooters. Northrop Grumman is the prime; initial operational capability was declared in 2022; fielding is ongoing through multiple Patriot battalions and the broader IAMD architecture. The system is essential to the modern Army IAMD concept of operations and is one of the principal achievements of the AFC Cross-Functional Team structure for the air and missile defense modernization priority area.

A US and allied chemical detection device (Improved Chemical Agent Monitor), a handheld ion mobility spectrometer used to detect and identify nerve and blister chemical agent vapors at low concentrations — fielded across joint and partner CBRN reconnaissance and decontamination formations as the successor to the legacy CAM, with the further successor JCAD (Joint Chemical Agent Detector) and other follow-on systems in fielding.

"The handheld CBRN vapor detector — improved successor to the original CAM."

ICAM is the handheld chemical agent monitor that CBRN soldiers (Army 74D, Marine 5711) and any unit operating in a contaminated environment uses to screen the air for nerve (G- and V-series) and blister (H-series) agent vapors. The device is a man-portable ion mobility spectrometer — point it where you want to check, the bar graph display tells you whether vapor is present and which category. ICAM replaced the original CAM and was itself overtaken by the Joint Chemical Agent Detector (JCAD) and follow-on systems, though legacy ICAMs remained in inventory for some time. The device is one of the basic CBRN troop-leading-procedure items: confirm presence, identify, mark, report, decontaminate. The doctrinal expectation is that CBRN events are detected by sensors, not by people falling over.

A US Air Force airdrop equipment system (Improved Container Delivery System) for delivering palletized cargo by parachute from C-130, C-17, and other airlift platforms — provides a standardized rigging method for delivering supply containers to ground forces in austere or denied locations, replacing earlier container delivery systems with improved drop accuracy and reliability.

"The improved airdrop container system — palletized cargo by parachute from C-130/C-17."

ICDS is the rigging system that turns a pallet of ammunition, water, MREs, or repair parts into a deliverable bundle that exits the back of a C-17 or C-130 and floats down to a drop zone — the workhorse method for resupplying ground forces in places where ground convoys and helicopter resupply are not feasible. The improvements over earlier container delivery systems are in accuracy, parachute reliability, and the integration with platform-specific airdrop computers and release systems. Airdrop riggers (Army 92R, Air Force 2T2X1 aerial port plus the aerial delivery community) build the bundles to ICDS specifications, and aircrew run the airdrop based on flight planning that accounts for wind drift, drop altitude, and DZ characteristics. The capability got heavy use through Afghanistan resupply of remote combat outposts.

The current-generation US Army soldier head protection system fielded as part of the Soldier Protection System (SPS) — a modular helmet system including the ballistic shell, mandible (lower face) protection, visor, applique armor, and rail-mounted accessory interface — designed to provide improved fragmentation and rifle-threat protection over the legacy ACH and ECH in a modular configuration.

"The modular next-gen Army combat helmet with mandible and visor options."

ICH (Integrated Head Protection System, sometimes called Integrated Combat Helmet) is the modular helmet the Army is fielding as part of the Soldier Protection System — a base ballistic shell plus optional mandible, visor, applique armor, and the rail system. The pitch is that the gunner in the turret can run mandible and visor while the dismount runs the lighter base shell, and the soldier doesn't have to swap helmets. In practice, fielding has been gradual; most line soldiers still run ACH or ECH-class helmets, and ICH appears in selected formations and modernization-priority units. The mandible and visor are heavy, hot, and visually intimidating — they have a clear use case in mounted gunnery and breaching, less so on a dismounted patrol in summer. The modularity is the point, and the soldier learns which configuration matches the mission.

A USTRANSCOM-supported deployment planning system (Integrated Computerized Deployment System) that automates the load planning of military equipment onto strategic airlift, sealift, and rail platforms — generates load plans, balance calculations, and stow diagrams that previously required manual labor-intensive computation by transportation specialists.

"The automated load-planning system for airlift, sealift, and rail movement."

ICODES is the load-planning software that turns "we have 240 vehicles, 80 containers, and 600 troops to move from Fort Bliss to Poland" into actual ship stow diagrams, aircraft chalks, and rail consist plans. The system handles the geometry (does it fit), the weight and balance (does the aircraft fly), the hazardous material constraints (can these items load together), and the documentation outputs that transportation movement releases require. Transportation officers (Army 88M/90A, Air Force 2T2X1, Navy logistics specialists) and unit movement officers use ICODES to translate a deployment order into the actual movement plan. Before ICODES and its predecessors, load planning was hand calculation that took the same task hours of skilled labor and was error-prone enough to delay missions.

The Department of Homeland Security legacy biometric identification system (IDENT, the Automated Biometric Identification System), which served as the DHS-wide repository for biometric records of foreign nationals and immigration encounters — being progressively replaced by the Homeland Advanced Recognition Technology (HART) system, with IDENT records migrated and operations transitioned over a multi-year modernization.

"The DHS biometric system — being replaced by HART."

IDENT was the DHS biometric backbone for years — the system that stored fingerprints (later faces, iris, and other modalities) of foreign nationals encountered in immigration, border, and law enforcement contexts, and the system that DoD biometric collections in deployed environments interfaced with through cross-agency sharing arrangements. The system is being replaced by the Homeland Advanced Recognition Technology (HART) modernization, which expands biometric modalities and scale. For DoD biometric operators (Army biometric collection teams, the broader biometric identity intelligence community), the practical effect is that the DHS interface is evolving, the data formats and standards are updating, and the cross-agency biometric watchlisting workflow has to adapt. The DoD biometric system ABIS (Automated Biometric Identification System) is the DoD-side counterpart that exchanges with IDENT/HART.

A US Navy modular lighterage system (Improved Navy Lighterage System) used for moving cargo from large prepositioning ships or strategic sealift vessels to shore where pier facilities are inadequate or absent — comprises causeway sections, warping tugs, and powered ferry modules that link together in different configurations to support Joint Logistics Over-The-Shore (JLOTS) operations.

"The Navy's modular causeway and lighterage system — supports JLOTS over-the-shore cargo offload."

INLS is the modular system the Navy uses to move cargo from ship to shore when there's no proper pier — the causeway sections lock together into floating piers, the warping tugs maneuver them into position, and the powered ferries shuttle vehicles and cargo from the offshore vessel to the beach or austere port. The system is operated by the Naval Beach Groups and supports JLOTS (Joint Logistics Over-The-Shore) operations alongside Army watercraft and the broader expeditionary logistics force. INLS replaced the legacy Causeway Section Powered (CSP) and other older systems with a more capable and modular family; the system has supported real-world operations including post-2010 Haiti earthquake response, and the 2024 Gaza pier mission that exposed both the capability and the limitations of the system in heavy sea states. For most service members INLS is invisible until a contingency calls for over-the-shore logistics.

A self-contained navigation system (inertial navigation system) that uses accelerometers and gyroscopes (now typically ring-laser or fiber-optic gyros) to continuously calculate position, velocity, and orientation from a known starting point without external references — provides GPS-denied or GPS-degraded navigation capability for aircraft, ships, submarines, missiles, and ground vehicles — modern systems typically integrate INS with GPS to provide complementary navigation capability resilient to either system's degradation.

"The self-contained navigation system using gyros and accelerometers — GPS-denied capable."

INS is how a platform knows where it is when GPS is jammed, spoofed, or unavailable — accelerometers measure acceleration in three axes, gyroscopes measure rotation, and the system integrates the measurements from a known starting point to produce a continuous position estimate. The fundamental limitation is drift: errors accumulate over time, so a pure INS solution degrades from inches to meters to hundreds of meters depending on how long since the last update and the grade of the system. Modern military platforms integrate INS with GPS so each compensates for the other's weaknesses — GPS fixes the INS drift, INS bridges through GPS outages. The strategic significance has grown sharply as GPS jamming and spoofing have become routine in contested environments: from Ukraine to the Red Sea, the assumption of available GPS no longer holds, and INS quality is a real operational variable.

The US Army-managed bulk petroleum pipeline system designed to move large volumes of petroleum products inland from beach or port arrival points to user units — comprising tactical pipeline segments, pumping stations, storage assemblies, and supporting equipment — operated by petroleum and water units in theater army and JTF logistics structures — listed in the DoD Dictionary of Military and Associated Terms (November 2021).

"The IPDS — the Army's tactical petroleum pipeline system for moving fuel inland."

IPDS is the Army-managed bulk petroleum pipeline that moves fuel inland once it's ashore — segments of tactical pipeline (lightweight, deployable, assembled by petroleum units), pumping stations, storage assemblies (collapsible tanks, rigid tanks), and the supporting equipment to make a working pipeline in a theater of operations. The system is part of the joint solution to a fundamental problem: bulk petroleum has to move from ocean tankers or rail terminals to the consuming units, and tanker trucks alone cannot meet large-force demand. IPDS is operated by quartermaster petroleum units (the legacy of the petroleum pipeline and terminal operations specialty), and the operational planning for IPDS sits in the IPDP. The system has been used in Korea, Vietnam, Desert Storm, OIF, and other operations; modernization efforts have continued through the 2020s.

Two meanings carried in the DoD Dictionary (November 2021): (1) individual protective equipment — the personal protective equipment a service member wears or carries for protection against threats (helmet, body armor, ballistic protection, CBRN protective mask and suit, eye protection, hearing protection); (2) integrated planning element — a joint-staff or component planning cell that integrates multiple disciplines into a coherent plan.

"IPE — individual protective equipment (gear you wear) or integrated planning element (staff cell)."

IPE carries two completely different meanings depending on the context. Individual protective equipment is the gear: helmet (ACH, IHPS, future Next Generation Integrated Head Protection System), body armor (IOTV, SPCS, MSV), CBRN protective mask (M50 JSGPM), CBRN protective overgarment (JSLIST), and the associated eye, hearing, and limb-protection items. The integrated planning element is the staff-side meaning — a group that pulls multiple disciplines into a coherent plan, used in some joint doctrine. Context usually disambiguates: a NBC officer says IPE meaning the protective suit and mask; a J5 planner says IPE meaning the planning cell. The DoD Dictionary lists both because both show up in joint publications.

A ballistic missile with range between 3,000 and 5,500 kilometers — the range band between medium-range ballistic missile (MRBM, 1,000-3,000 km) and intercontinental ballistic missile (ICBM, over 5,500 km) — listed in the DoD Dictionary of Military and Associated Terms (November 2021) and used in arms-control and operational vocabulary describing systems including historical US Pershing II and Soviet SS-20, current North Korean and other proliferator systems.

"IRBM — intermediate-range ballistic missile, 3,000-5,500 km range band."

IRBM is the ballistic missile range category between MRBM and ICBM — formally 3,000 to 5,500 kilometers under the standard NATO/arms-control range definitions. The category is the one most associated with the INF Treaty era: the US Pershing II and the Soviet SS-20 were the systems whose deployment in Europe in the late 1970s and 1980s drove the political crisis that produced the INF Treaty (1987), which banned land-based missiles in the 500-5,500 km range from US and Soviet/Russian arsenals. The US withdrew from INF in 2019 over Russian violations; both sides are now developing systems in the formerly-banned range bands. North Korean, Iranian, and other proliferator IRBM systems are a continuing strategic concern. The Army Mid-Range Capability (Mk 70 Typhon) is a contemporary US system in adjacent range bands.

An Israeli Rafael Advanced Defense Systems short-range air-and-missile defense system, designed primarily for defense against short-range rockets and artillery shells — the US Army procured two Iron Dome batteries in 2019-2020 under congressional direction as an interim short-range air defense capability — operationally tested as part of the broader IAMD layered defense and integrated with IBCS where the configuration supports.

"The Israeli Iron Dome — US Army bought 2 batteries in 2019-2020."

Iron Dome is the Israeli air-and-missile defense system the US Army procured under congressional direction in 2019-2020 — two batteries, Rafael Advanced Defense Systems prime (Israeli industry), with Raytheon as the US partner for the longer-term US-specific variant. The system is short-range, designed primarily for defense against rockets and artillery rounds (where it has been operationally proven over Israel's defense against rockets from Gaza and Lebanon across decades). The US Army's Iron Dome procurement was politically driven (a specific congressional appropriation) and operationally evaluated — the system has integrated with the broader Army IAMD architecture where the configuration supports. The longer-term role of Iron Dome in the Army inventory has been a continuing subject of decisions across multiple budget cycles.

A standardized cargo package conforming to International Organization for Standardization dimensional and handling specifications — used in DoD ammunition, supplies, and equipment packaging to enable interoperable cargo handling across commercial and military logistics systems — listed in the DoD Dictionary of Military and Associated Terms (November 2021).

"ISOPAK — ISO-standard package for cargo, enables commercial-military logistics interoperability."

ISOPAK is the standardized package that conforms to ISO dimensional and handling specifications — packaging that fits the global commercial logistics system rather than requiring custom DoD-only handling. The standardization matters because DoD relies extensively on commercial logistics for strategic-movement throughput, and cargo that fits ISO standards moves through commercial container terminals, on commercial trucks, and on commercial rail without the friction that custom packaging creates. Ammunition packaging, certain supply categories, and some equipment shipping all use ISOPAK-conforming configurations. Joint logistics planners use ISOPAK terminology in distribution and packaging documentation; warehouse and port-operations personnel work with ISOPAK-formatted shipments daily. The term itself isn't common in the soldier-on-the-line vocabulary but is foundational in the staff-and-warehouse side of the logistics enterprise.

The US Army light, air-droppable, infantry-squad-mobility vehicle (ISV M1301), GM Defense prime — based on the Chevrolet Colorado ZR2 commercial platform — fielded across IBCT formations (82nd Airborne, 101st Airborne, 10th Mountain, 25th ID, etc.) to give light infantry squads tactical mobility without converting them to mounted Stryker-class formations — initial fielding 2020, with continuing production.

"The Infantry Squad Vehicle — GM Defense, Colorado ZR2 derivative, light infantry mobility."

ISV is the Army's light, air-droppable vehicle that gives an infantry squad tactical mobility without turning a light infantry formation into a wheeled mounted formation — GM Defense the prime, based on the Chevrolet Colorado ZR2 commercial pickup platform with modifications for the squad-mobility role. The vehicle seats a 9-soldier infantry squad with their personal equipment, is sling-loadable under helicopters, and is air-droppable from C-17 and C-130 transports. Fielding has been to IBCT formations (82nd ABN, 101st ABN, 10th Mountain, 25th ID, etc.). The vehicle is intentionally simple and light — no armor against direct fire, no weapons mount in the basic configuration — because the design point is light infantry mobility rather than mounted combat. The fielding is part of the broader effort to give IBCTs more capability against peer adversaries.

A US Army powerplant modernization program providing the General Electric T901-GE-900 turboshaft engine to replace the legacy T700 engines in AH-64 Apache and UH-60 Black Hawk helicopters — provides approximately 50% more horsepower than T700 with lower fuel consumption, extending the operational envelope of legacy helicopters (heat-and-altitude performance, payload capacity) — fielded across the existing helicopter fleets through the late 2020s.

"The ITEP T901 engine — Apache and Black Hawk re-engine, GE Aviation."

ITEP (Improved Turbine Engine Program) is the engine modernization program for the Apache and Black Hawk fleets — the General Electric T901-GE-900 turboshaft engine replacing the legacy T700 series. The new engine provides approximately 50% more horsepower with lower fuel consumption, significantly improving the operational envelope of the legacy helicopters in high-temperature and high-altitude environments and increasing payload capacity. Fielding is across the existing AH-64 and UH-60 fleets through the late 2020s and beyond. The program extends the operational relevance of the legacy helicopters while FLRAA and broader FVL programs deliver the longer-term successor aircraft. ITEP is a less-visible but operationally meaningful aviation modernization.

A US Army soldier-worn mixed-reality headset system (IVAS), Microsoft prime under the original $21.9B IDIQ contract from 2018-2021 with continuing development across multiple capability sets (IVAS 1.0 fielded then withdrawn for issues, IVAS 1.1 limited fielding, IVAS 1.2 substantial redesign) — provides night vision, thermal, augmented reality navigation, weapons aiming integration, and squad-level connectivity — Anduril selected 2025 as the new prime contractor.

"The Army IVAS — HoloLens-based mixed reality, Microsoft to Anduril prime change."

IVAS (Integrated Visual Augmentation System) is the soldier-worn mixed-reality headset program — Microsoft was the original prime under a $21.9B IDIQ contract awarded 2018, with successive capability sets (IVAS 1.0 fielded then withdrawn after operational issues, IVAS 1.1 limited fielding, IVAS 1.2 substantial redesign) attempting to deliver on the operational requirement. The system promises night vision, thermal imaging, augmented reality navigation, weapons aiming integration, and squad-level connectivity — combining what had been multiple separate pieces of soldier kit into a single integrated platform. In February 2025, Anduril Industries was selected as the new prime contractor in a major program transition. IVAS has been one of the most publicly contested modernization programs across multiple administrations, with technical, performance, and acquisition-process controversies throughout.

A class of two Japan Maritime Self-Defense Force ships — JS Izumo (DDH-183, commissioned 2015) and JS Kaga (DDH-184, commissioned 2017) — designated as helicopter destroyers (DDH) per Japanese constitutional and political constraints, but functionally light aircraft carriers — currently undergoing conversion (modified flight deck heat-resistant coating, deck strengthening) to operate F-35B Lightning II short takeoff and vertical landing aircraft, restoring Japanese naval aviation capability for fixed-wing aircraft.

"Izumo-class — JS Izumo + JS Kaga, light carriers being converted for F-35B."

The Izumo-class are functionally light aircraft carriers that Japan calls helicopter destroyers (DDH) for constitutional and political reasons — Article 9 has been interpreted as prohibiting "offensive" platforms, and aircraft carriers have historically been understood to fall in that category. The 2018-2019 National Defense Program Guidelines authorized conversion of both ships to operate F-35B short takeoff and vertical landing aircraft; the modifications (deck heat-resistant coating, deck strengthening, marshaling area changes) have been completed on JS Izumo and are in process on JS Kaga. The conversion is politically significant — it represents the most visible Japanese movement toward fixed-wing naval aviation since 1945. For US Navy F-35B operators and the Marine F-35B squadrons that operate from US LHDs and LHAs, JS Izumo and JS Kaga represent an interoperability opportunity.

The US Army combat-engineer armored vehicle-launched bridge (M1074 JAB), based on the M1 Abrams chassis with the bridge-launching mechanism in place of the turret — replacing the legacy M104 Wolverine and earlier M60-based AVLB — designed to emplace a 60-foot Military Load Class 95 (MLC-95) bridge in approximately 2 minutes under armor protection — fielded across combat engineer units in heavy formations.

"The JAB — Abrams-based armored bridge launcher, 60-foot MLC-95 bridge."

JAB is the modern armored vehicle-launched bridge — built on the M1 Abrams chassis (with the bridge-launching mechanism replacing the turret), designed to lay a 60-foot Military Load Class 95 bridge in approximately 2 minutes from under armor protection. The vehicle replaces the legacy M104 Wolverine and the earlier M60-based AVLB systems. Combat engineer units in heavy formations operate JABs; the vehicle enables breaching of gaps (rivers, canals, anti-tank ditches, blown bridges) under hostile conditions where ordinary bridge engineers couldn't emplace a bridge by hand. The MLC-95 capacity supports crossing of Abrams main battle tanks and the rest of the heavy fleet. Fielding is incremental across ABCT engineer formations.

A US joint-service automated biological-agent point detection system, capable of continuous sampling, automated detection, and identification of biological-warfare-agent aerosols (including bacteria, viruses, and toxins) — fielded in fixed-site, vehicle, and trailer configurations for fixed-base, force-protection, and theater CBRN defense missions.

"The automated biological-detection system — continuous sampling for bio-agent aerosols."

JBPDS is the part of CBRN defense that does the thing humans cannot — automated continuous monitoring for biological aerosols, with detection and identification of specific agents (anthrax, plague, ricin, others) in concentrations below the level a sick patient would manifest. The system is large (trailer-mounted, fixed-site, or vehicle-integrated), expensive, and centrally managed; you don't see JBPDS on a small-unit roster. It's how high-value bases, theater commands, and protected sites get bio-warning data. The strategic and theater CBRN architecture relies on JBPDS-class systems; the soldier in the squad does not. The system has its own program lineage and modernization track (JBTDS, JBSDS).

The current US joint-service handheld chemical-agent detector (designated M4 JCAD), capable of detecting and identifying nerve, blister, and blood-agent vapors at low concentrations, providing real-time alarm and identification with stored hazard history — the soldier-portable detection device fielded across CBRN reconnaissance and unit-level CBRN defense missions.

"The handheld chemical-agent detector — what alerts you to vapor threats."

JCAD (the M4 JCAD specifically) is the box that beeps when there's chemical agent vapor — a soldier-portable detector that identifies nerve, blister, and blood agents and provides a real-time alarm. CBRN reconnaissance teams carry it; unit CBRN NCOs have access to it; it's the detection capability at the squad/platoon level. Calibration, training, and false-alarm management are real concerns — the device responds to chemicals that aren't chemical-warfare agents and trained operators learn to interpret its alarms in context. JCAD is paired with M8/M9 paper for liquid-phase confirmation and with longer-range standoff detectors at higher echelons.

A DoD acquisition and integration category (joint equipment, tactical, and space) describing portfolios that span tactical ground equipment and space-based capabilities — used in joint requirements documents and capability development to identify cross-domain dependencies between ground-tactical systems (radios, navigation, fires direction) and space-enabled services (PNT, SATCOM, ISR).

"The acquisition category bridging tactical ground equipment and space-enabled services."

JETS is the bureaucratic recognition that modern tactical equipment is dependent on space services in ways the legacy procurement system did not handle well — your tactical radio assumes GPS time and frequency reference, your fires direction system assumes accurate PNT, your ISR feed assumes SATCOM bandwidth, and the loss of any of those space-provided services cascades through the ground-tactical world. The category exists to force joint requirements documents and capability development packages to surface those dependencies explicitly — so that when the threat to PNT or SATCOM is acknowledged, the tactical-ground impact is on the table. For an acquisition professional JETS is part of the JCIDS vocabulary; for an operator it's the framework that connects "GPS is degraded" to "fires accuracy is degraded" in the staff conversation.

The US joint Army-Marine Corps light tactical vehicle (JLTV, Oshkosh Defense prime as the original manufacturer; AM General won a 2023 follow-on contract for additional production), designed to provide significantly improved protection over the legacy HMMWV (Humvee) while retaining tactical mobility — fielded across joint and allied formations replacing HMMWVs in close-combat formations beginning in the late 2010s, with HMMWVs retained in less-exposed support roles.

"The JLTV — Humvee replacement in close-combat formations, more protected, heavier."

JLTV is the Humvee replacement in close-combat formations — significantly improved protection against IEDs and small-arms (the lesson from Iraq and Afghanistan that drove the program), with comparable tactical mobility on roads and off-road. Oshkosh Defense was the original manufacturer; AM General won the 2023 recompete for additional production. JLTV is heavier than HMMWV (the Joint Light Tactical Vehicle is light only relative to MRAPs and combat vehicles; it's significantly heavier than the legacy HMMWV it replaces), which has constraints on aviation-lift and shipping. The fielding plan is across close-combat formations first, with HMMWVs retained in less-exposed support roles. The Marine Corps is a co-program participant and fields JLTV across its own formations.

The Joint Precision Airdrop System (JPADS) is a family of GPS-guided precision-airdrop systems that deliver palletized cargo from fixed-wing aircraft to a precise impact point — comprising multiple variants (JPADS 2K for 2,000-pound loads, JPADS 10K for 10,000-pound loads, and other class variants) using a guided parafoil to autonomously navigate from release point to a programmed impact point.

"GPS-guided precision airdrop — parafoil-guided cargo from C-130/C-17."

JPADS is the GPS-guided airdrop system that lets a C-130 or C-17 drop a palletized cargo load from altitude and standoff distance and have the load steer itself to a programmed impact point using a guided parafoil. The 2K (2,000-pound) and 10K (10,000-pound) variants cover most of the airdrop need; larger and smaller class variants exist or have been developed. The capability matters for resupply to remote outposts, special operations forces, and other locations where conventional low-altitude airdrop is too risky (terrain, threats, weather) or where the standoff allows the aircraft to stay out of an air-defense threat ring. For an Army aerial delivery rigger or an Air Force loadmaster, JPADS is a different rigging and release process than legacy heavy-equipment airdrop and requires the GPS programming step at the airfield before mission departure.

A family of US joint-service aircrew chemical-biological protective masks designed for use in aviation cockpits and cabin environments — including the MPU-5/P for fixed-wing aircrew and rotary-wing-specific variants — providing chemical/biological protection compatible with aircraft oxygen systems, communications equipment, and the operational demands of aircrew tasks.

"The aircrew protective mask — JSAM family for cockpit/cabin environments."

JSAM is the aircrew counterpart to the M50 — a protective mask family engineered for the cockpit environment, where compatibility with the aircraft's oxygen system, the communications gear, and the visual demands of flying matter more than the dismounted infantry requirements that drove the M50. Different variants serve different aircraft types (fixed-wing, rotary-wing). Aircrew put on JSAM under CBRN-elevated conditions; the planning factor for aircrew CBRN missions includes the additional fatigue and decision-degradation the mask imposes during sustained flight. The mask is one of the items pilots train with regularly under the JSAM-compatible flight-suit ensemble.

The standard US joint-service chemical-biological protective suit, comprising a charcoal-impregnated jacket, trousers, gloves, and overboot system, providing 24-hour protection against liquid and vapor chemical agents and biological aerosols — the "MOPP suit" service members put on under MOPP-2 and higher protective postures.

"The standard CBRN protective suit — the "MOPP suit.""

JSLIST is the chemical-biological protective suit every service member has put on at least once for training — charcoal-impregnated material that absorbs chemical agent vapor, sized to fit over the duty uniform, with matching gloves and overboots. The suit is rated for 24 hours of protection against liquid and vapor chemical agents; in practice, getting that 24 hours requires correct donning, sealing, and replacement timing. JSLIST is hot, restrictive, and degrades performance significantly — which is why MOPP postures escalate gradually and why "MOPP-4 for 24 hours" is a serious operational decision, not a casual one. The donning sequence is drilled to muscle memory.

The US Air Force E-8C Joint Surveillance Target Attack Radar System, a Boeing 707-derived airborne ground surveillance and battle management aircraft providing ground moving target indication (GMTI), synthetic aperture radar imaging, and battle management of ground and surface operations — operated by the 116th and 461st Air Control Wings from Robins AFB, Georgia, with the fleet retired beginning 2022 and the mission transitioning to ABMS and Advanced Battle Management System constructs (DoD Dictionary, November 2021).

"JSTARS — the E-8 ground-moving-target radar aircraft, retiring to ABMS successors."

JSTARS is the E-8C — a Boeing 707 with a massive ground-looking phased-array radar under the belly and a battle-management crew in the back. It is the airborne platform that gave joint force commanders the ground moving target picture (where are the columns moving, where is the battle line shifting, where are the SAMs relocating) and the battle-management capability to direct ground forces and CAS in response. The fleet was based at Robins AFB and flown by the 116th and 461st Air Control Wings. Retirement began in 2022; the mission is supposed to be picked up by a distributed-sensors approach under the broader ABMS and JADC2 constructs rather than a single-platform successor. The transition has been politically contested and operationally uneven; the gap between E-8 retirement and a credible distributed replacement is a recurring oversight concern.

The US Air Force air refueling tanker (KC-135 Stratotanker), Boeing prime, derived from the 707/C-135 family and fielded since 1957 with continuous modernization (KC-135R re-engining in the 1980s-90s, Block 45 avionics modernization) — approximately 380 operational airframes across the Air Force, Air Force Reserve, and Air National Guard — being supplemented by KC-46 Pegasus with KC-135 retirements planned through the 2030s and beyond.

"The legacy tanker — 380 aircraft, KC-46 supplementing but KC-135 continues."

KC-135 Stratotanker is the air-refueling tanker that has been the backbone of joint and allied air refueling since 1957 — Boeing 707 derivative, re-engined in the 1980s-1990s, with Block 45 avionics modernization keeping the fleet operationally relevant. The Air Force, Air Force Reserve, and Air National Guard operate approximately 380 KC-135R airframes across multiple wings. KC-46 Pegasus is supplementing the fleet; KC-135 retirements will happen incrementally as KC-46 capacity grows, with the legacy fleet expected to continue in service through the 2030s. The aircraft has flown more refueling sorties than any other tanker in history and the operational tempo continues high.

The US Air Force air refueling tanker (KC-46A Pegasus), Boeing prime, derived from the 767-200ER commercial airliner with the addition of a flying-boom and centerline-and-wingtip drogue refueling systems, the Remote Vision System refueling-boom-operator station, and self-defense capabilities — initial operational capability declared 2022 after substantial program-of-record difficulties, fielded across multiple Air Force air mobility wings and replacing legacy KC-135 Stratotanker airframes.

"The KC-135 successor — Boeing 767 derivative, RVS boom-operator station."

KC-46A Pegasus is the air-refueling tanker the Air Force has been bringing into service to replace the legacy KC-135 Stratotanker fleet — 767-derived, with both flying-boom (for Air Force receivers) and drogue (for Navy/allied receivers) refueling systems, and the Remote Vision System where the boom operator sits at a console rather than the legacy boom-pod position. The RVS has been one of the principal program challenges; multiple deficiencies were identified through testing and post-fielding operations, with continuing fixes. The aircraft achieved initial operational capability in 2022 and is being fielded incrementally; the KC-135 fleet will continue to operate alongside KC-46 for many years during the transition. Tanker mission demand is enormous and growing in the Indo-Pacific theater.

A class of three (plus three Batch II under construction) Republic of Korea Navy Aegis-equipped guided missile destroyers — full-load displacement approximately 11,000 tons — armed with SPY-1D(V) radar, Standard Missile family interceptors (SM-2, SM-3), and the SLQ-200 KDX integrated combat system — one of the most heavily-armed Aegis destroyer designs by VLS count among allied navies.

"KDX-III — ROKN Sejong the Great-class Aegis BMD destroyers."

KDX-III Sejong the Great-class destroyers are among the most heavily-armed surface combatants in any allied navy — full Aegis combat system with SPY-1D(V) radar, Standard Missile family interceptors including SM-3 for ballistic missile defense, and an exceptionally large VLS count (128 cells in Batch I, with the Batch II ships under construction continuing the heavy-VLS design). Three Batch I ships are in service (Sejong the Great, Yulgok Yi I, Seoae Ryu Seong-ryong); three Batch II ships are under construction. The class gives ROKN a top-tier Aegis BMD capability for theater missile defense alongside US Navy Aegis destroyers and Japanese Maritime Self-Defense Force destroyers. KDX-III integration into the combined US-ROK-Japan missile defense architecture is one of the deeper trilateral coordination points in the region.

A colloquial soldier term for the US military combat helmet — originally a brand name for the DuPont para-aramid fiber used in the PASGT helmet shell from the early 1980s onward, and retained as the universal soldier-speech name for the field helmet regardless of the actual helmet generation (PASGT, MICH, ACH, ECH, ICH) and regardless of whether the current shell uses aramid (Kevlar) or polyethylene materials.

"Universal soldier slang for the combat helmet — sticks regardless of actual helmet."

Kevlar is what soldiers call their helmet — "grab your Kevlar," "your Kevlar is on crooked," "where's your Kevlar." The name comes from the DuPont aramid fiber used in the PASGT helmet shell starting in the early 1980s, and the name stuck even as the helmets changed: a soldier in an ECH (which uses polyethylene, not Kevlar) still calls it "my Kevlar." The persistence of the term is one of the small examples of how soldier speech overruns regulatory and material changes — the helmet is the Kevlar regardless of what is actually in the shell, and that's been true for forty years and three full helmet-generation changes. An NCO telling a soldier "fix your Kevlar" is using the universal term; the actual shell material is a procurement-office concern.

An indigenous Korean 4.5-generation multirole fighter program, developed by Korea Aerospace Industries (KAI) with Indonesia as a development partner — first flight 2022, initial production deliveries scheduled for the second half of the 2020s — intended to replace ROKAF F-4 Phantom II and F-5 Tiger II legacy fleets and provide the bulk of ROKAF tactical air strength alongside F-35A and F-15K.

"KF-21 Boramae — Korea's indigenous 4.5-generation fighter, replacing F-4 and F-5."

KF-21 (Boramae, meaning "young hawk") is the indigenous Korean fighter program that has been in development for over a decade — KAI as the prime contractor, Indonesia as a development partner, first flight achieved in 2022, initial production deliveries scheduled for the second half of the 2020s. The aircraft is a 4.5-generation design — twin-engine, with AESA radar, internal weapons carriage planned for later blocks, but not the full low-observable signature management of fifth-generation aircraft. The program is one of the most ambitious indigenous Korean defense efforts — replacing the aging F-4 Phantom II and F-5 Tiger II fleets, joining the F-35A and F-15K in the ROKAF force mix, and with export potential to Indonesia and other partners. The KF-21 reflects the broader Korean defense industrial base maturation across the last two decades.

A class of nine planned Republic of Korea Navy diesel-electric attack submarines with air-independent propulsion (AIP) — first-of-class Dosan Ahn Chang-ho commissioned 2021 — full-load displacement approximately 3,750 tons — features six vertical launch tubes capable of accommodating submarine-launched ballistic missiles, in addition to torpedo tubes — represents a significant capability step beyond the earlier KSS-I (Type 209) and KSS-II (Type 214) Korean submarine classes.

"KSS-III — ROKN Dosan Ahn Chang-ho-class diesel-electric subs with AIP and VLS."

KSS-III Dosan Ahn Chang-ho-class submarines are the most capable boats in the ROKN submarine force — first-of-class commissioned in 2021, nine boats planned across multiple batches, with AIP propulsion for extended submerged endurance and six vertical launch tubes capable of accommodating submarine-launched ballistic missiles. The class is a significant step beyond the German-designed Type 209 (KSS-I) and Type 214 (KSS-II) classes that preceded it — KSS-III is indigenously designed and built, integrating Korean combat systems and Korean-developed weapons. The submarine force is one of the quietly-maintained deterrent elements in ROK defense planning — capable of holding DPRK targets at risk from concealed positions in regional waters. The AIP capability gives the boats a meaningful undersea endurance advantage over conventional diesel-electrics without going to a nuclear power plant.

A US Marine Corps mobile counter-UAS system mounted on light tactical vehicles (typically a pair of Polaris MRZR all-terrain vehicles or similar), combining a small radar, electro-optical/infrared sensors, and a radio-frequency jammer for c-sUAS defense — fielded across Marine Corps formations for organic short-range air defense against small-UAS threats.

"The Marine Corps mobile vehicle-mounted c-sUAS system."

L-MADIS is the Marine Corps' organic c-sUAS — a pair of small-vehicle-mounted modules (one with radar/sensors, one with RF jammer) that gives a Marine unit the ability to detect, identify, and defeat small UAS in its area of operations without calling on higher echelons. The system was operationally employed in the 2019 USS Boxer incident in which a Marine Corps L-MADIS reportedly defeated an Iranian UAS in the Strait of Hormuz. For the broader joint c-sUAS picture, L-MADIS is the Marine Corps' contribution to the layered defense — small, mobile, organic to the formation.

A family of amphibious wheeled cargo lighters used for ship-to-shore transfer of personnel and cargo in joint logistics over-the-shore (JLOTS) operations — the family includes the LARC-V (5-ton capacity) and historically the larger LARC-XV (15-ton) and LARC-LX (60-ton), with the LARC-V remaining the principal active variant in Army watercraft inventory (DoD Dictionary, November 2021).

"LARC — the amphibious wheeled cargo lighter family for ship-to-shore movement."

LARC is the family of amphibious wheeled cargo lighters that the Army watercraft community uses for ship-to-shore movement in JLOTS (Joint Logistics Over-the-Shore) operations — the vehicles that swim out from the beach to a ship lying offshore, take a load of cargo or personnel, and swim back to drop it on the beach. The current active variant is the LARC-V (5-ton class); the larger LARC-XV (15-ton) and LARC-LX (60-ton) are historical platforms that have been retired. The capability matters because not every operation lands at an improved port — sometimes the joint force has to push cargo across a beach, and LARCs are part of how that gets done. The Army's 7th Transportation Brigade (Expeditionary) at Fort Eustis is the lineage home for the capability.

The 5-ton class amphibious wheeled cargo lighter (LARC-V), in Army watercraft inventory for ship-to-shore movement of personnel and cargo in joint logistics over-the-shore (JLOTS) operations — fielded since the 1960s with continuing service in active and reserve component watercraft formations (DoD Dictionary, November 2021).

"LARC-V — the 5-ton amphibious lighter used for ship-to-shore JLOTS movement."

LARC-V is the specific 5-ton variant of the LARC amphibious lighter family — wheeled, aluminum-hulled, capable of carrying about 5 tons of cargo or 20 troops between ship and shore in JLOTS operations. Fielded in the 1960s; still in active and reserve Army watercraft inventory, with the Army's 7th Transportation Brigade (Expeditionary) as the lineage home at Fort Eustis. The vehicle is slow (around 9 knots in water, 30 mph on land) and has limited range, but it accomplishes a mission that nothing else in the joint inventory does as cheaply: get cargo across a surf zone without a port. LARC-V replacement and modernization questions have come up across multiple force-design reviews; the platform persists because the need persists.

The US Marine Corps wheeled 8x8 light armored vehicle family (LAV-25), General Dynamics Land Systems prime — fielded since 1983 in multiple mission variants (LAV-25 with 25mm M242 Bushmaster cannon, LAV-L Logistics, LAV-R Recovery, LAV-M Mortar, LAV-AT Anti-Tank with TOW, LAV-C2 Command and Control, LAV-Air Defense legacy) — the platform of Light Armored Reconnaissance (LAR) battalions in I MEF and II MEF, and the principal Marine Corps reconnaissance and security vehicle.

"The Marine LAV-25 family — light armored 8x8 vehicles for LAR battalions."

LAV-25 is the Marine Corps's 8x8 wheeled light armored vehicle family — General Dynamics Land Systems-built since 1983, in multiple mission variants spanning combat (LAV-25 with 25mm cannon, LAV-AT anti-tank with TOW), command and control (LAV-C2), mortar (LAV-M), recovery (LAV-R), and logistics (LAV-L). The platform is the basis of the Light Armored Reconnaissance (LAR) battalions in I MEF and II MEF, providing the Marine Corps's wheeled reconnaissance and security capability. The LAV family is being modernized continuously and the platform is expected to continue in service through significant additional time, with replacement options for the longer term still being evaluated under Force Design 2030 considerations.

A US Navy / Marine Corps program (originally Light Amphibious Warship LAW, renamed Medium Landing Ship LSM in 2023) for a smaller, less expensive amphibious ship class — approximately 35 ships planned — designed to support Marine Littoral Regiment operations by moving small Marine units between expeditionary advanced bases in the Indo-Pacific theater — initial production target through the 2020s with ongoing program challenges including cost growth and design decisions.

"The LAW/LSM — small amphib ship supporting MLR operations, FD2030."

LAW/LSM is the new small amphibious ship program for the Marine Corps Force Design 2030 — initially called Light Amphibious Warship (LAW), renamed Medium Landing Ship (LSM) in 2023. The program is for a smaller, less expensive amphibious ship class than the legacy LHA/LHD/LPD ships — approximately 35 hulls planned, intended to move small Marine units (a Littoral Combat Team or similar element) between expeditionary advanced bases in the Indo-Pacific. The ship is sized for survivability through dispersion and operational fit rather than the survivability through size and protection of the larger amphibious ships. The program has had cost growth and design-decision challenges; the production schedule remains a subject of ongoing congressional and Navy/Marine debate. LSM is a major Marine FD2030 fleet-structure question.

The US Navy Landing Craft Air Cushion (LCAC), an air-cushion hovercraft built by Textron Marine and Land Systems, capable of transporting M1 Abrams main battle tanks, AAV/ACV vehicles, and other Marine equipment from the well deck of an amphibious ship to a beach at high speed (40+ knots) over surf zones and other obstacles — fielded since 1986 — being supplemented by the Ship-to-Shore Connector (SSC, designated LCAC-100) modernization replacement.

"The LCAC — Navy hovercraft for ship-to-shore lift of Marine equipment."

LCAC is the air-cushion hovercraft that moves Marine equipment from amphibious ship well decks to the beach — capable of carrying an Abrams tank, multiple AAVs or ACVs, or other heavy loads at 40+ knots over surf zones, beaches, and even some inland terrain. Built by Textron Marine and Land Systems since the 1980s, the platform has been the principal Navy ship-to-shore connector for heavy equipment for decades. The Ship-to-Shore Connector (SSC, designated LCAC-100) is the modernization replacement entering service through the 2020s with improved capacity, modern systems, and longer service life. LCAC operates from the well decks of LHA, LHD, LPD, and LSD ships; well-deck design throughout the amphibious fleet is sized to accommodate LCAC/SSC operations.

A landing craft designed to carry mechanized equipment (vehicles, tanks, artillery, cargo) from amphibious shipping to a beach in surface assault operations — currently the LCM-8 in joint service, with capacity for approximately 60 troops or 65 tons of cargo or one main battle tank; the acronym also separately denotes "letter-class mail," a postal service category (DoD Dictionary, November 2021).

"LCM — landing craft for mechanized equipment, beach-capable from amphibious shipping."

LCM is the workhorse landing craft for mechanized equipment movement from amphibious shipping to a beach — the LCM-8 ("Mike-8") is the current variant in joint service, capable of carrying about 60 troops or 65 tons of cargo or one main battle tank. The platform is used by Army watercraft formations and by Navy beach-master units in support of amphibious operations. LCMs are the alternative to LCACs (the air-cushion landing craft) when the higher cost and limited availability of LCACs don't make sense for a given mission. The second meaning ("letter-class mail") is unrelated and reflects the historic DoD postal service vocabulary; the dictionary captures both senses.

The US Navy Littoral Combat Ship monohull variant (Freedom-class, LCS-1 USS Freedom and odd-numbered LCS hulls), Lockheed Martin/Marinette Marine prime — high-speed shallow-draft surface combatant designed for littoral operations, with modular mission packages — the program has had significant propulsion-system issues with the combining gear of the steam-water-jet propulsion design, leading to early retirements of multiple early hulls.

"The LCS monohull variant — Lockheed Martin/Marinette, propulsion problems."

Freedom-class LCS is the monohull variant of the Littoral Combat Ship — Lockheed Martin/Marinette Marine-built in Wisconsin, with the same modular mission package concept as the Independence-class. The class has had significant operational problems: the combining gear that connects the diesel and gas turbine engines to the water jets has been a chronic reliability issue, with multiple early-class hulls retired before reaching projected service lives. Like the trimaran Independence variant, Freedom-class hasn't delivered on the modular-mission promise of the LCS program. The legacy of both LCS variants has shaped the Navy's thinking on small combatants and informed the Constellation-class FFG design choices that prioritize stability over modularity.

The US Navy Littoral Combat Ship trimaran variant (Independence-class, LCS-2 USS Independence and even-numbered LCS hulls), Austal USA prime — high-speed shallow-draft surface combatant designed for littoral operations, with modular mission packages for surface warfare, anti-submarine warfare, and mine countermeasures roles — the program has had significant operational and reliability challenges through deployment.

"The LCS trimaran variant — Austal USA, modular mission packages."

Independence-class LCS is the trimaran variant of the Littoral Combat Ship program — high-speed, shallow-draft, with modular mission packages that swap in and out (SUW Surface Warfare, ASW Anti-Submarine Warfare, MCM Mine Countermeasures) to reconfigure the ship for different missions. The ship is Austal USA-built in Alabama; the design is unusual for a US warship (trimaran hull). Operational reality has been mixed — the modular concept hasn't worked as envisioned, the ships have had reliability problems, and the Navy has been retiring early-LCS hulls before their projected service lives. Both LCS variants (Independence and Freedom) have shaped frigate-class thinking; the Constellation-class FFG is the post-LCS answer for the small-combatant role.

A larger landing craft designed for ship-to-shore movement of vehicles, cargo, and personnel in amphibious operations and intra-theater sustainment movement — the LCU-1610 and LCU-2000 series are the principal variants in joint inventory, with capacity for several hundred tons of cargo and the ability to operate independently for extended periods at sea (DoD Dictionary, November 2021).

"LCU — the large landing craft, several hundred tons of cargo, beach-capable."

LCU is the larger landing craft in the joint inventory — capable of several hundred tons of cargo, several days of independent operation at sea, and ramped beach offload for vehicles and rolling stock. The LCU-1610 series serves with Navy beach group formations; the LCU-2000 series serves with Army watercraft formations (Army Logistics Support Vessel and similar large watercraft are separate categories above LCU). LCUs are intra-theater movers as well as amphibious assault platforms — moving supplies between islands in the Pacific, between beaches and offshore shipping, and over short coastwise distances. The Army watercraft fleet went through significant divestment in the 2010s and partial restoration in the 2020s as Pacific theater requirements drove renewed attention to the capability.

A German-designed main battle tank developed by Krauss-Maffei (now KNDS Deutschland) — in service with the Heer since the late 1970s through successive A1 through A8 variants, with the current Heer fleet centered on the Leopard 2A6, 2A7, and emerging 2A8 standards — armed with the Rheinmetall 120mm L/44 or L/55 smoothbore gun — widely exported and in service with multiple NATO and partner militaries including Canada, Denmark, Finland, Greece, Hungary, Netherlands, Norway, Poland, Portugal, Spain, Sweden, and others, plus non-NATO operators including Indonesia, Singapore, Switzerland, and others.

"Leopard 2 — German MBT (KNDS/Krauss-Maffei), Heer + 15+ NATO and partner operators, 120mm smoothbore."

The Leopard 2 is the Heer's main battle tank — a German-designed MBT in service with the Heer since the late 1970s through successive variants (the current fleet centered on 2A6, 2A7, and the emerging 2A8 standards). For a US Army armor partner, the Leopard 2 is the closest European-built counterpart to the M1 Abrams — comparable role, comparable era of design, and a long history of side-by-side operations in NATO armor exercises. The export footprint is extensive: Leopard 2 serves with at least fifteen other militaries (Canada, Denmark, Finland, Greece, Hungary, Netherlands, Norway, Poland, Portugal, Spain, Sweden, plus non-NATO operators including Indonesia, Singapore, Switzerland, and others), making it one of the most widely-fielded Western MBTs after the M1. The 2022-2023 Leopard 2 transfers to Ukraine from multiple operators marked a major institutional moment for the platform and for the German export-control framework.

Laser-guided bomb — a bomb with a terminal guidance kit that homes on reflected laser energy from a target designated by a ground-based or airborne laser designator (DoD Dictionary, November 2021).

"LGB — a bomb that homes on a laser spot put on the target."

LGB is the original precision-guided munition the joint force fielded at scale — a dumb iron bomb (Mk 82, Mk 83, Mk 84, BLU-109, etc.) with a guidance kit on the nose and a tail kit on the back that turns it into a weapon that flies into a laser spot. The Paveway family (GBU-10, GBU-12, GBU-16, GBU-24) is the dominant LGB lineage; later Enhanced Paveway variants added GPS for adverse-weather backup. The Service member's lived reality of LGB is JTACs lasing targets from the ground or AC-130 sensor operators lasing from the air, with the pilot getting "spot acquired" on the HUD before pickle. The LGB is older than JDAM but still relevant because laser guidance is precise to within a few meters and works against moving targets that GPS munitions cannot service.

Laser-guided missile — a missile with a terminal guidance kit that homes on reflected laser energy from a target designated by a ground-based or airborne laser designator (DoD Dictionary, November 2021).

"LGM — a missile that homes on a laser spot."

LGM is the missile cousin of the LGB — Hellfire, APKWS, Brimstone (allied), and the broader laser-guided missile family that powers attack aviation and many ground and naval platforms. The Hellfire AGM-114 in its laser variants is the dominant US LGM; APKWS is the laser-guided 2.75-inch rocket that turns a Hydra-70 into a precision weapon at a fraction of Hellfire cost. The Service member lived reality of LGM is Apache and AH-1Z pilots running fires with JTACs lasing from the ground, or MQ-9 sensor operators self-lasing and launching their own Hellfires. LGM is generally lower-yield than LGB (the missile warhead is smaller than a 500-lb bomb) but more precise and faster to employ against time-sensitive targets.

Laser-guided weapon — the umbrella term for any weapon employing laser terminal guidance, including laser-guided bombs, laser-guided missiles, and laser-guided rockets (DoD Dictionary, November 2021).

"LGW — umbrella term for any laser-guided weapon."

LGW is the doctrinal umbrella term that covers LGB, LGM, and laser-guided rockets in one bucket — when a JP or fires planning document needs to talk about laser-guided employment as a category, LGW is the word. The category exists because the planning considerations are common across the family: a laser designator (ground-based via JTAC, airborne via aircraft sensor, or shipboard), a laser code that has to match between designator and weapon, an illumination geometry that has to support the seeker, and an obscuration / smoke / weather environment that can defeat the seeker. The trade-off vs GPS munitions like JDAM is precision (LGW is more precise) and adverse-weather capability (GPS works through clouds; LGW does not). Most modern weapons offer both modes as backups for each other.

Amphibious assault ship (general purpose) — a large amphibious warfare ship designed to embark, deploy, and land elements of a Marine landing force in an assault by helicopters, landing craft, amphibious vehicles, or by a combination of these methods, with primary emphasis on aviation operations (DoD Dictionary, November 2021).

"LHA — big-deck amphib optimized for aviation, no well deck (America class first two hulls)."

LHA is the big-deck amphibious assault ship hull designation in the modern fleet — the Tarawa class was the original LHA lineage; the America class LHA-6 and LHA-7 are the current "Flight 0" hulls that gave up the well deck in favor of more aviation space (F-35B and MV-22 capacity), with LHA-8 onward returning the well deck. To a Marine, an LHA looks and feels almost identical to an LHD — both are 40,000-ton flat-tops, both embark a Marine Expeditionary Unit, both carry the air combat element, the ground combat element, and the logistics combat element of the MEU. The lived difference between LHA Flight 0 and LHD is the well deck — Flight 0 LHAs cannot launch LCAC or AAV/ACV through the stern gate, which constrains amphibious throughput. LHA-8 forward fixes that.

Amphibious assault ship (multipurpose) — a large amphibious warfare ship designed to embark, deploy, and land elements of a Marine landing force by helicopters, landing craft, amphibious vehicles, or a combination of these methods, with full multipurpose capability including a well deck for landing craft operations (DoD Dictionary, November 2021).

"LHD — big-deck amphib with well deck, Wasp class."

LHD is the Wasp-class big-deck amphib — LHD-1 through LHD-8, the workhorses of the ARG/MEU rotation for thirty years. An LHD does everything: launches and recovers F-35B and AV-8B (legacy) fixed-wing, MV-22 tiltrotor, CH-53K and CH-53E heavy lift, AH-1Z and UH-1Y light attack/utility from the flight deck; launches LCAC hovercraft, LCU displacement craft, and AAV/ACV amphibious tractors through the well deck. The MEU embarks an LHD as the flagship of the three-ship ARG (LHD + LPD + LSD or replacement). Sailors and Marines call LHDs by name — Wasp, Essex, Kearsarge, Boxer, Bataan, Bonhomme Richard (lost to fire in 2020), Iwo Jima, Makin Island. The transition to America-class LHA replacements is gradual; LHDs will be in the fleet through the 2030s.

Large, medium-speed roll-on/roll-off — a class of sealift ships designed for rapid loading and unloading of wheeled and tracked vehicles through stern and side ramps at speeds of approximately 24 knots, operated by Military Sealift Command in support of Army and Marine Corps strategic deployment (DoD Dictionary, November 2021).

"LMSR — the Army's heavy roll-on/roll-off sealift ships, 24-knot strategic lift."

LMSR is the workhorse class of Military Sealift Command roll-on/roll-off ships that moves the Army's heavy iron across oceans — Bob Hope class (T-AKR-300 series) and Watson class (T-AKR-310 series) are the hulls. The ships are designed to load and unload an entire armored brigade combat team's vehicles through stern ramps and side ramps at SPODs without crane support, which is the whole point — Abrams, Bradley, AMPV, HEMTT, and the rest of the BCT roll on at a US port and roll off at a forward port. LMSRs operate at approximately 24 knots so an LMSR squadron can move from CONUS to a forward theater in a strategically useful timeframe. The Surge Sealift Fleet (LMSRs at reduced operating status), the Ready Reserve Force, and the Maritime Prepositioning Force together make up the strategic sealift capacity that any large-scale Army deployment depends on.

The legacy US Navy fast-attack submarine class (SSN-688 class, "688s"), commissioned 1976 through 1996, originally 62 hulls built — the backbone of the Navy SSN force through the 1980s, 1990s, and 2000s, with progressive retirements through the 2010s and 2020s as the class ages out — being replaced by Virginia-class with the SSN force size decline a major fleet structure concern.

"The legacy 688 SSN class — 62 ships built, retiring through the 2020s."

Los Angeles-class is the SSN class that defined the late-Cold-War US submarine force — 62 hulls built (the largest fast-attack submarine class in history), the backbone of the SSN force through three decades, and the platform that made the silent service the strategic asset it has become. Improved variants (688i with vertical launch tubes for Tomahawk, plus other improvements) added capability across the production run. The class is retiring rapidly through the 2020s as the 30+ year hulls reach end of service life; the SSN force size has been declining accordingly, with Virginia-class production not keeping pace with Los Angeles retirements. The SSN gap is one of the principal fleet-structure issues of the 2020s.

Amphibious transport dock — an amphibious warfare ship designed to embark, transport, and land elements of a Marine landing force by helicopters, landing craft, or amphibious vehicles; also low probability of detection — a characteristic of a signal or emission designed to make it difficult for an adversary to detect, including frequency hopping, spread spectrum, and burst transmission techniques (DoD Dictionary, November 2021).

"LPD — San Antonio class amphib transport dock; also low probability of detection (comms)."

LPD is the rare DoD Dictionary entry with two distinct meanings that show up together in joint vocabulary. The amphibious transport dock LPD is the San Antonio class (LPD-17 onward) — a 25,000-ton hull with a well deck, a hangar and helicopter deck, and Marine Expeditionary Unit lift; the planned LPD-30 Flight II will absorb the LSD replacement mission. The other LPD is low probability of detection — a signals/EW characteristic of transmissions designed to be hard for an adversary to find (frequency hopping, spread spectrum, burst transmissions, controlled emissions). Context disambiguates: amphibious staff officers mean the ship; J6/EW staff mean the comms property. For Service members on an ARG/MEU, LPD-as-ship is the day-to-day reality; LPD-as-comms-property is the SATCOM and tactical radio configuration that keeps signals from being DF'd.

Laser range finder — a sensor that determines the distance to a target by emitting a laser pulse and measuring the elapsed time until the reflected return is received, providing precise range data for fire control, navigation, and targeting applications (DoD Dictionary, November 2021).

"LRF — sensor that measures distance to target via laser pulse time-of-flight."

LRF is the laser sensor that figures out exactly how far away a target is — pulse the laser, measure the time the reflection takes to come back, divide by twice the speed of light, get a range to the meter or better. The LRF lives in optics and sensor systems across the joint force: the Vector binoculars and rangefinders that JTACs and forward observers carry, the gunner's primary sight on M1 Abrams and M2 Bradley, the targeting pods on F-15E and F-35, the sensor balls on MQ-9 Reaper and MQ-1C Gray Eagle, the laser designators that double as rangefinders for LGB and LGM engagements. The lived reality is the JTAC who lases a target and reads off the range to the supporting aircraft — accurate ranging is what makes a precision fire actually precise.

The US Air Force nuclear-armed air-launched cruise missile (designated AGM-181A LRSO), Raytheon prime, designed to replace the legacy AGM-86 ALCM and to be carried by the B-52H, B-2 Spirit, and B-21 Raider bombers — carrying the modernized W80-4 warhead, with first delivery planned for the late 2020s and operational fielding in the early 2030s, providing the standoff air-leg nuclear capability against modern integrated air defenses.

"The ALCM successor — Raytheon, B-52H/B-2/B-21 carriage, W80-4 warhead."

LRSO is the modern replacement for the AGM-86 ALCM that has been the nuclear air-launched cruise missile of the triad for forty years — Raytheon the prime, with the modernized W80-4 warhead, designed to be carried by B-52H (the principal current carrier), B-2 Spirit (as it remains in service), and B-21 Raider. The missile gives the bomber leg standoff against modern integrated air defenses where direct B-52H penetration would be infeasible. Fielding is targeted for the late 2020s through early 2030s. Like other nuclear-modernization programs, LRSO has had advocates and critics in the policy debate (some argue against bomber-leg ALCM modernization at all), but the program of record has continued across multiple administrations.

Dock landing ship — an amphibious warfare ship designed to transport and launch loaded amphibious craft and vehicles with crews and embarked personnel in amphibious assault by landing them dry through a stern gate or by flooding the well deck (DoD Dictionary, November 2021).

"LSD — dock landing ship, well-deck workhorse (Whidbey Island and Harpers Ferry classes)."

LSD is the dock landing ship — the well-deck workhorse of the ARG/MEU triad alongside the big-deck LHA or LHD and the LPD San Antonio class. Whidbey Island class (LSD-41 through LSD-48) and Harpers Ferry class (LSD-49 through LSD-52) are the current hulls; the planned LX(R) / LPD-30 Flight II replacement will retire the LSD designation in favor of LPD across the future amphibious fleet. An LSD has a massive well deck for LCAC and LCU operations and a modest helicopter deck (no hangar), so it carries the surface-connector load while the LHA/LHD carries the air-connector load. Sailors and Marines call them by name — Whidbey Island, Germantown, Comstock, Tortuga, Harpers Ferry, Carter Hall, Oak Hill, Pearl Harbor. The LSD will be in service well into the 2030s but the class is end-of-life.

An airborne or ground-based sensor that detects and tracks the reflected energy from a laser target designator illuminating a target, enabling the tracking platform to acquire and engage the designated target with laser-guided munitions or other precision effects (DoD Dictionary, November 2021).

"The LST — sensor that tracks where someone else's laser is painting the target."

LST is the seeker that finds the spot of laser energy bouncing off a target some other shooter or controller has designated. The pilot rolling in for a laser-guided bomb attack uses an LST in the targeting pod (Sniper, LITENING, ATFLIR) to confirm acquisition of the JTAC's laser energy on the correct target before pickling the bomb. Ground controllers use LSTs to verify the designator is on the target the pilot will see, not the building next door. The LST/LTD relationship is the bedrock of joint laser-designated attack — the JTAC paints, the LST acquires, the bomb tracks the spot back down. The frequency-coded laser pulse rate (PRF code) is what keeps everyone shooting at the right target when multiple lasers are up.

A US Army watercraft class (the Frank S. Besson-class LSV, M/V 1681-class) designed for intra-theater sealift of unit equipment, vehicles, and supplies between ports and across littoral waters where ocean-going strategic sealift cannot reach — operated by Army watercraft units, with eight LSVs in the active inventory across the active and reserve components (DoD Dictionary, November 2021).

"The LSV — Army logistics support vessel, intra-theater sealift between ports."

LSV is the Army's intra-theater sealift workhorse — a Frank S. Besson-class watercraft about 273 feet long, capable of carrying about 15 M1 Abrams tanks or about 80 cargo containers in a single load, with a bow ramp for roll-on/roll-off offload onto beach or austere port. The vessels are crewed by Army watercraft operators (88K MOS) and operate as the connector between deep-draft strategic sealift and the actual point of need ashore. Eight LSVs sit across the active and reserve component fleets, with significant employment in the Indo-Pacific where the distributed maritime geography demands intra-theater lift. The Army watercraft fleet has been politically contested across administrations; the lift gap between strategic sealift and shore is what LSVs fill.

A US Army Raytheon-developed air and missile defense radar designed to replace the legacy AN/MPQ-65 Patriot radar — provides 360-degree coverage (vs the legacy radar's ~90-degree forward arc), gallium nitride active electronically scanned array (AESA) technology, and improved performance against modern threats including hypersonic glide vehicles and small cruise missiles — integrated with IBCS for the modernized Patriot battery configuration, with first delivery in the mid-2020s.

"The LTAMDS — 360-degree GaN AESA replacement for the Patriot radar."

LTAMDS (Lower Tier Air and Missile Defense Sensor) is the Patriot radar replacement — designed by Raytheon (the same prime as Patriot proper), providing 360-degree coverage (the legacy AN/MPQ-65 Patriot radar covered only a ~90-degree forward arc, requiring multiple radars or repositioning for full coverage), gallium nitride (GaN) AESA technology, and improved performance against modern threats. The radar is integrated with IBCS as the modernized Patriot battery configuration. First delivery in the mid-2020s with fleet integration across the Army Patriot force through the late 2020s and 2030s. LTAMDS is one of the principal Army IAMD modernization achievements alongside IBCS and the Iron Dome procurement.

A device that emits a coded laser pulse onto a target to provide a tracking and guidance reference for laser-spot-tracker equipped sensors and laser-guided munitions — operated by a Joint Terminal Attack Controller, joint fires observer, or other qualified laser-designator operator (DoD Dictionary, November 2021).

"The LTD — the laser the JTAC paints the target with for laser-guided bombs."

LTD is the device the JTAC or joint fires observer uses to mark a target with coded laser energy that the bomb (and the pilot's targeting pod) can find and track. The PRF code matters: every laser is set to a specific pulse repetition frequency, and the bomb is set to the matching code, so a JTAC painting target Alpha at code 1688 doesn't accidentally guide a different aircraft's bomb that's set for code 1511 onto someone else's target. The hand-held LTDs (LLDR, Sofflam, GLTD II) are the everyday tools of the JTAC at the OP; the gun-camera/targeting-pod LTDs on aircraft do the same thing from the air. The discipline of designating, dwelling, and not breaking lase until weapon impact is foundational to laser-guided munition employment.

A US Oshkosh Defense MRAP variant designed for the off-road and restricted-terrain conditions of Afghanistan — smaller and more mobile than the heavier MRAP variants (Cougar, MaxxPro) — entered service 2009 in response to the operational need for off-road MRAP capability — multiple variants including troop carrier, command and control, and special operations configurations.

"The M-ATV — Oshkosh smaller off-road MRAP, fielded 2009 for Afghanistan."

M-ATV is the off-road MRAP variant — Oshkosh Defense-built, smaller and more mobile than the heavier Cougar and MaxxPro variants, designed in response to the operational requirement for off-road MRAP capability in Afghanistan. The vehicle entered service in 2009 and was procured in significant numbers (over 5,000) for the Afghanistan operations. Multiple variants address troop carriage, command and control, and special operations configurations. The M-ATV is part of the broader MRAP family but distinguished by its mobility profile. Post-OEF divestment was less extensive for M-ATV than for the larger MRAPs because the lighter vehicle had more remaining utility in the broader force.

The US military-only GPS signal (M-Code) broadcast by GPS IIR-M, GPS IIF, and GPS III/IIIF satellites at higher signal strength than the legacy military P(Y) code, with improved anti-jam performance and tighter security/access controls — the modern military GPS signal that complements (and is replacing) the legacy P(Y) code, requiring M-Code-capable user receivers (MGUE Military GPS User Equipment) for access.

"The modern military-only GPS signal — anti-jam, stronger than legacy P(Y)."

M-Code is the GPS signal the joint force is meant to actually use for military applications — stronger than the civil L1 C/A or L5 signals, more anti-jam capable than the legacy military P(Y) code, and tightly access-controlled so adversary forces can't use it. The signal is broadcast by all modernized GPS satellites (IIR-M, IIF, III, IIIF); using it requires M-Code-capable receivers, which are fielded under the Military GPS User Equipment (MGUE) program. Transitioning the fielded force off legacy P(Y) and onto M-Code has been a slower and more complex effort than the satellite-side modernization; MGUE fielding is the operational bottleneck.

A US Army vehicle-mounted counter-small-UAS system, integrating a small radar, electro-optical sensor, and a kinetic-and/or-jamming effector on Stryker, MRAP, or similar tactical vehicles, for organic c-sUAS defense at the battalion-and-below level — paired with the Fixed Site-LIDS (FS-LIDS) variant for fixed installations.

"The Army's mobile vehicle-mounted c-sUAS system."

M-LIDS is the Army equivalent of the Marine Corps L-MADIS — a mobile vehicle-mounted c-sUAS system that gives formations organic defense against small unmanned aircraft. The Fixed Site-LIDS (FS-LIDS) variant provides the same capability for static installations like forward operating bases, command posts, and theater logistics hubs. The system integrates radar detection, EO/IR identification, and an effector (RF jamming or, in some configurations, kinetic options including the Coyote interceptor). M-LIDS is one of the principal Army c-sUAS programs of record, fielded incrementally across formations through the 2020s.

The US Army's mobile short-range air defense capability built on the Stryker chassis (Initial Maneuver-Short-Range Air Defense, IM-SHORAD), carrying the Mission Equipment Package with Stinger missiles, Hellfire missiles, a 30mm cannon, and the AN/MPQ-64 Sentinel radar — designed to provide organic air defense to maneuver brigades against UAS, helicopters, and low-flying fixed-wing aircraft.

"The Stryker-mounted maneuver air defense — Stinger, Hellfire, 30mm, Sentinel radar."

M-SHORAD is the maneuver short-range air defense capability the Army has been building to restore organic air defense to maneuver brigades after the post-Cold-War divestment of short-range air defense atrophied the capability. The Initial Maneuver-Short-Range Air Defense (IM-SHORAD) variant rides on a Stryker chassis with a Mission Equipment Package: Stinger missiles, Hellfire missiles (recently added for counter-UAS and ground roles), a 30mm cannon, and the AN/MPQ-64 Sentinel radar. The capability addresses the UAS, helicopter, and low-flying fixed-wing threat that has emerged operationally and that ABCT/SBCT/IBCT formations had little organic defense against. M-SHORAD batteries are forming alongside the broader Army air-and-missile-defense expansion (Patriot, THAAD, IFPC, NASAMS) of the 2020s.

The US Army light combat vehicle (M10 Booker), General Dynamics Land Systems prime, designed under the Mobile Protected Firepower (MPF) program to provide IBCT-level direct-fire support previously absent from the light infantry brigade combat team — armed with a 105mm cannon, with armor protection between IFV-class and main-battle-tank-class — initial fielding 2023-2024 with continuing production.

"The Booker — light tank for IBCTs, 105mm gun, MPF program of record."

M10 Booker is the new Army light combat vehicle (often called a "light tank" though the Army resists the term) — 105mm cannon, armor protection between an IFV and a main battle tank, designed to give Infantry Brigade Combat Teams the direct-fire support they have lacked since the M551 Sheridan was retired. The vehicle is named for Staff Sergeant Stevon Booker (KIA Iraq 2003, posthumous Distinguished Service Cross) and Private Robert Booker (KIA WWII, posthumous Medal of Honor). Initial fielding began 2023-2024 to the 82nd Airborne Division and other IBCT formations. The vehicle is significantly heavier than the Sheridan it replaces conceptually; airdrop capability has been a program issue. The M10 Booker is one of the principal Army ground-vehicle additions of the 2020s and reshapes IBCT firepower.

A US joint-force .50 BMG (12.7x99mm NATO) semi-automatic anti-materiel sniper rifle (Barrett M82A1-derived M107), fielded across Army, Marine Corps, and SOF formations as the anti-materiel and extended-range sniper rifle — used against light vehicles, equipment, unexploded ordnance disposal at standoff, and personnel at extreme range (the .50 BMG cartridge delivers effects at distances beyond conventional 7.62mm and .300 Win Mag sniper rifles).

"The .50-cal anti-materiel sniper rifle — Barrett M82, extreme range and hard targets."

M107 is the .50-cal sniper rifle — the Barrett M82-derived semi-automatic anti-materiel rifle that Army, Marine, and SOF sniper formations run when the target is a vehicle, equipment, an unexploded ordnance object that needs disposal at standoff, or a personnel target at extreme range. The .50 BMG round is the same cartridge the M2 heavy machine gun fires; the M107 puts one round downrange per trigger pull with precision the M2 doesn't deliver. The weapon is heavy (about 30 pounds), the recoil is significant (the muzzle brake reduces it dramatically), and the system is fielded selectively — not every sniper section gets one, but where the mission profile fits, it's the weapon. EOD techs sometimes use the M107 to disable munitions at distance.

A US joint-force 7.62x51mm NATO semi-automatic sniper rifle (Knight's Armament Company SR-25 derivative), fielded across Army, Marine Corps, and SOF formations as the semi-automatic precision rifle for designated marksman and sniper teams — provides the rate of fire of a semi-auto platform with the precision of a sniper-grade barrel and optic, complementing the bolt-action M2010 ESR and M24 SWS.

"The semi-auto 7.62mm sniper rifle — sniper teams and DMR role."

M110 SASS is the semi-automatic 7.62mm sniper rifle the joint force fields when the engagement profile favors rate of fire over the slower bolt-action — sniper teams use it as a complement to the M2010 ESR bolt-action, designated marksmen use it as their primary precision weapon, and SOF elements run it in their precision-rifle slots. The Knight's SR-25 lineage is recognizable to anyone familiar with the AR-platform precision-rifle world. The trade-off vs the M2010 is precision at extreme ranges (the bolt-action is more accurate at the longest distances) for rate of fire and capacity (the M110 cycles like a battle rifle, holds a 20-round magazine, and engages multiple targets quickly). Every Army sniper team has an M110 alongside the bolt-action, and the team picks the weapon to the engagement.

The US Army's legacy tracked aluminum-armored personnel carrier family (M113, multiple variants including M113A1/A2/A3 APC, M577 command post carrier, M106 mortar carrier, M548 cargo carrier, M730 air defense, M901 ITV anti-tank, and many specialty variants), fielded since 1960 — over 80,000 produced — being progressively replaced by the AMPV family in ABCT formations, with the legacy fleet continuing in support and Reserve Component roles for years.

"The M113 family — legacy aluminum-armor APC, AMPV is the replacement."

M113 is the aluminum-armored personnel carrier family that has been everywhere in the Army for sixty years — over 80,000 produced (the most-numerous armored vehicle in US history), in production from 1960 through 2007 with multiple variants for APC, command post, mortar carrier, cargo carrier, air defense, anti-tank, and many specialty configurations. The platform is being replaced in ABCT formations by AMPV; the broader M113 fleet continues in support roles (training installations, Reserve Component units, specialty applications) and in many allied operator inventories. The aluminum armor was a Cold War design point optimized for cross-country mobility and air-deployability, but it doesn't protect against modern threats — which is part of why AMPV exists as the replacement. M113s have served in every major US Army conflict since Vietnam.

A US joint-force 7.62x51mm NATO battle rifle, fielded as the standard service rifle from approximately 1957 through the late 1960s before being supplanted by the M16 in 5.56mm — retained in selected designated-marksman and ceremonial roles into the modern era (M14 EBR / M21 sniper variants in some inventories), with widespread visibility in honor guards, drill teams, and Veterans' organizations.

"The 7.62mm legacy battle rifle — supplanted by M16, retained in DMR and ceremonial roles."

M14 is the legacy 7.62mm battle rifle the US fielded from roughly 1957 through the late 1960s — full-power 7.62 NATO, wooden stock and metal furniture (originally), the rifle the joint force carried before the M16 transition. The rifle was supplanted by the M16 in main service for valid operational reasons (5.56 lets the soldier carry more ammunition, the M14 is heavy and the recoil makes automatic fire impractical), but M14 inventory was retained and has had a long secondary life: the M14 EBR (Enhanced Battle Rifle) and the M21 sniper variant saw service in Iraq and Afghanistan as designated-marksman rifles, and the M14 lives on in ceremonial roles (honor guards, drill teams, Navy ship details). Every Veteran of a certain age remembers the M14 from initial-entry training; junior service members today see it primarily at ceremonies and military funerals.

A US Army shoulder-fired disposable bunker-buster rocket launcher (Bunker Defeat Munition variant of the Marine Corps SMAW system, designated M141 SMAW-D in Army service) — single-shot, designed to defeat fortified structures, bunkers, and hardened positions with a high-explosive dual-purpose warhead — distinct from the rocket-launcher anti-armor systems (AT-4, M72) in its specialization for structure defeat.

"The Army's disposable bunker-buster — single-shot, structure-defeat warhead."

M141 SMAW-D is the Army's disposable bunker-defeat munition — single-shot launcher, structure-defeat warhead, the weapon a squad reaches for when the threat is a fortified structure rather than a vehicle. The Marine Corps has the reloadable Mk 153 SMAW (Shoulder-launched Multi-purpose Assault Weapon) in their inventory; the Army's M141 SMAW-D is the disposable variant of that family, optimized for the Army's preference for disposable single-shot launchers at the squad level. In Iraq especially, the SMAW-D was used against fortified positions, prepared structures, and walled compounds where the standard anti-armor rockets weren't the right tool. Fielding has been selective; not every infantry company has SMAW-D, and the issue depends on mission profile.

The US joint-force 5.56x45mm NATO rifle family, in service since the Vietnam War (M16A1) and progressively modernized through M16A2 (1980s, three-round burst, improved sights), M16A3 (Navy/SEAL full-auto variant), and M16A4 (flat-top receiver, rail interface) — the full-length 20-inch-barrel rifle from which the M4 carbine was derived, retained in selected formations, training units, ROTC, and reserve-component inventories.

"The full-length 5.56mm rifle — legacy service rifle, training and ROTC use."

M16 is the full-length rifle the M4 carbine descended from — 20-inch barrel, fixed stock, the service rifle of the Vietnam through GWOT eras. The A2 variant (three-round burst, heavier barrel) was the Army and Marine Corps standard from the 1980s into the early 2000s; the A4 (flat-top, rail interface) was the Marine Corps standard well into the 2010s after the Army had moved decisively to the M4. A junior soldier today is unlikely to be issued an M16 in a line unit, but they'll see them in basic training, in ROTC, in reserve-component inventories, and on guard-mount details. A senior NCO who came up before 2005 qualified on an M16A2, not an M4; the muscle memory is similar but not identical.

The US joint sidearm replacement (M17 full-size and M18 compact variants), SIG Sauer P320-derivative, fielded since 2017 to replace the legacy Beretta M9 9mm sidearm — modular design allowing trigger group transfer between different size frames, with manual safety, and the broader Modular Handgun System (MHS) program providing the procurement structure across joint Services.

"The new joint sidearm — SIG P320 derivative, M17 full-size and M18 compact."

M17 / M18 is the joint Service sidearm replacement that fielded across the joint force from 2017 onward — SIG Sauer P320-derivative, with M17 full-size and M18 compact variants. The Modular Handgun System (MHS) acquisition program replaced the legacy Beretta M9 9mm sidearm that had been the joint sidearm since the mid-1980s. The modular design allows the trigger group (the actual serialized weapon under US law) to be moved between different size frames and configurations. The M17/M18 has had some safety controversies (uncommanded discharges in early production batches) that were addressed through engineering changes; the platform is now broadly fielded across all Services with continuing production.

The US joint-force colored smoke hand grenade, fielded in red, yellow, green, and violet variants for signaling, marking, and screening use — emits a dense colored smoke for approximately 50 to 90 seconds — used for landing-zone marking, casualty-evacuation marking, target marking, signaling between ground elements and aircraft, and obscuration of small areas.

"The colored smoke grenade — red, yellow, green, violet for signaling and marking."

M18 smoke is the colored-smoke grenade — the canister that every service member pops for an LZ, a CASEVAC, a target mark, or a signal from the ground to a circling helicopter. Four colors are standard: red, yellow, green, and violet. The procedure is fixed (the air element calls the color, the ground element pops and confirms, the air element confirms what they see — never the other way around, because the adversary listens to the radio). Smoke duration is roughly 50 to 90 seconds depending on the cartridge and conditions, and the smoke is dense enough to be visible from the air against most backgrounds. Every Veteran has a memory of popping smoke for a bird; it's one of the small operational rituals that defines the relationship between ground and air elements.

A US joint-force command-detonated directional antipersonnel mine, consisting of a curved plastic case containing approximately 700 steel spheres backed by approximately 1.5 pounds of C-4 explosive — emplaced facing the threat direction (the casing reads "FRONT TOWARD ENEMY" in raised letters), fired by command via an M57 firing device through M4 detonating cord or wire — the iconic perimeter-defense and ambush-initiation weapon of US ground forces.

"The "FRONT TOWARD ENEMY" mine — command-detonated, perimeter defense and ambush initiation."

M18A1 Claymore is the directional antipersonnel mine that has "FRONT TOWARD ENEMY" embossed on the case in raised letters, because somebody once emplaced one backward and the institutional memory required a permanent solution. Command-detonated (the firing device is the M57 "clacker" connected by wire), curved plastic case packed with about 700 steel spheres backed by C-4, oriented toward the kill zone, fired when the operator decides. The Claymore is on every Veteran's mental list of weapons they know by sight: perimeter defense in static positions, ambush initiation in patrol bases, and the iconic shape of the OD-green curved case with the legs sticking into the ground. It is command-detonated (not pressure-actuated), which keeps it outside the anti-personnel-mine treaty restrictions that apply to victim-actuated mines. Every infantry soldier handles and emplaces one in training.

A US joint-service non-metallic anti-tank mine — plastic-bodied, pressure-actuated, with a minimum-metal construction that makes detection by conventional metal-detector mine-clearing equipment significantly more difficult than older metal-bodied AT mines — fielded as the standard US anti-tank mine for protected-emplacement and barrier-construction use, with strict accountability and emplacement-only-in-marked-fields procedures.

"The plastic-bodied non-metallic anti-tank mine — hard to detect with metal detectors."

M19 is the US plastic-bodied anti-tank mine — pressure-actuated, designed with minimum metal content so that conventional metal detectors don't pick it up reliably. The mine is heavy (about 28 pounds), and the emplacement procedures are strict — US mine-warfare doctrine requires marked minefields, mapped emplacement, and recording for later clearance. The non-metallic construction reflects the threat environment: metal-bodied AT mines were detectable by adversary mine-clearing equipment, so a generation of mine design moved toward plastic and ceramic. M19 is one of the AT mines in the US inventory; combat engineers train on emplacement and recovery, and the mine is one of the systems that defines US barrier-construction capability. The Ottawa Treaty governs anti-personnel mines, not anti-tank mines — the M19 is a legal weapon in US service.

The US joint-force .50 BMG (12.7x99mm NATO) heavy machine gun, designed by John Browning and fielded since 1933 in continuous service — vehicle-mounted as the primary ring-mount weapon on HMMWVs, MRAPs, JLTVs, Strykers, and many other platforms; tripod-mounted in ground role; and as the cupola-mounted secondary on tanks — one of the longest-serving weapons in any military inventory.

"The .50-cal — in service since 1933, ring-mount standard for every wheeled vehicle."

M2 Browning is the .50-cal — the heavy machine gun that has been in continuous service since 1933 and is, by any reasonable measure, the longest-serving major weapon in the US inventory. Vehicle ring mounts on HMMWVs, MRAPs, JLTVs, and Strykers carry the Ma Deuce; the tripod-mounted ground role still exists; every Abrams has one on the commander's cupola. The .50-cal hits with authority — penetration, range, and effect that 7.62mm machine guns don't approach — and the trade-off is weight (the gun is 84 pounds before the tripod). Every Army truck driver and convoy gunner trains on the M2, and the headspace-and-timing drill is a piece of institutional ritual every gun crew memorizes. Production restarted in the 2010s with the M2A1 variant (quick-change barrel, fixed headspace and timing).

The US Army's .300 Winchester Magnum bolt-action sniper rifle, fielded as the replacement for the legacy M24 Sniper Weapon System (M24 SWS) — features a heavier cartridge (the .300 Win Mag in place of the M24's 7.62x51mm) for extended effective range, a modular chassis system replacing the original M24 stock, and improved optics — fielded across Army sniper formations from approximately 2010 onward.

"The .300 Win Mag bolt-action sniper — replaced the M24 SWS."

M2010 ESR is the Army's current bolt-action sniper rifle — .300 Winchester Magnum chambering (heavier than the M24's 7.62x51mm), modular chassis system, the replacement for the M24 SWS that came in around 2010 and gives Army snipers meaningfully extended effective range. The trade-off vs the M110 SASS is rate of fire (the M2010 is bolt-action, the M110 is semi-auto) for extreme-range precision (the bolt-action and the heavier .300 Win Mag round outperform 7.62 at the longest distances). Every Army sniper team carries both — M2010 for the long shots, M110 for the higher-volume engagements. The Marine Corps runs different sniper rifles (the Mk 13 in some Marine sniper roles), but the Army's bolt-action sniper rifle is the M2010.

A US joint-service 40mm low-velocity under-barrel grenade launcher mounted on the M16 rifle and M4 carbine, firing the 40x46mm grenade cartridge family (HE, HEDP, illumination, smoke, signal, and training rounds) — fielded since the late 1960s as the squad-level grenadier weapon, being progressively replaced by the M320 / M320A1 in conventional formations.

"The underbarrel 40mm grenade launcher — being replaced by M320."

M203 is the underbarrel 40mm grenade launcher every Army and Marine rifle squad carried for decades — clipped under the M16 or M4, fired by the squad grenadier, the weapon that delivers HE, illumination, smoke, and signal rounds at point-target ranges out to a few hundred meters. The slide-forward breech, the leaf sight or quadrant sight, the round in the chamber — every Veteran from the 1970s onward learned the M203. The M320 is replacing it across conventional formations: the M320 has a side-opening breech, can run standalone with its own grip and stock or under-barrel, and accepts longer rounds the M203 cannot. The transition is gradual, and M203s remain in inventory; a soldier in an Army or Marine squad in 2026 might carry either depending on the unit.

The US Army's legacy 7.62x51mm NATO bolt-action sniper rifle (Remington Model 700-derived), fielded from 1988 onward as the standard Army sniper rifle and largely replaced in active sniper service by the M2010 Enhanced Sniper Rifle (.300 Win Mag) from approximately 2010 — many M24 SWS rifles were converted to the M2010 standard, but the M24 designation and the original 7.62mm configuration remain in selected use and in extensive institutional memory.

"The legacy 7.62mm bolt-action sniper rifle — replaced by M2010 ESR."

M24 SWS is the legacy Army sniper rifle — 7.62x51mm, bolt-action, Remington 700 action, the system the Army fielded in 1988 and that defined Army sniper marksmanship for two-plus decades. The M2010 ESR (next entry up) replaced it in active service starting around 2010 — many physical M24 rifles were converted to M2010 standard (new barrel in .300 Win Mag, new chassis, new optic), so a soldier might encounter a rifle that started life as an M24 SWS and is now an M2010. The original 7.62mm M24 SWS remains in selected use. Every Veteran Army sniper from the 1990s through the 2010s shot the M24 SWS; it's the institutional bolt-action that defined the Army sniper community before the M2010 transition.

The US joint-force 7.62x51mm NATO general-purpose machine gun, derived from the FN MAG, fielded across the Army, Marine Corps, and other services as the standard medium/general-purpose machine gun — the M240B is the ground-mounted standard, the M240L is a lightweight titanium-receiver variant, and coaxial and vehicle-mounted variants equip armored vehicles and helicopters as the secondary weapon.

"The 7.62mm GPMG — ground-mount, coax, and door-gunner standard."

M240 is the 7.62mm machine gun the joint force carries when the 5.56mm SAW isn't enough — heavier, belt-fed, the general-purpose machine gun that goes on the ground tripod, on the coaxial mount of every Abrams and Bradley, in the door of every Black Hawk, and on the vehicle ring mount when the .50-cal isn't up. The M240B is the line-unit standard; the M240L (titanium receiver) shaves significant weight for dismounted use, which matters because the basic M240B is a heavy weapon. Every weapons squad in an Army or Marine rifle company runs M240s; the gun team — gunner, assistant gunner, ammo bearer — is one of the most-trained crew-served positions in the conventional force.

The US Army standard 5.56x45mm NATO belt-fed light machine gun, derived from the FN Minimi, fielded across the joint force as the squad-level automatic weapon — typically belt-fed from 200-round soft pouches with the option to load M16/M4 magazines through a magazine well — the squad-level base-of-fire weapon being supplemented and progressively replaced by the XM250 under the NGSW program.

"The 5.56mm squad LMG — belt-fed automatic, the SAW gunner's weapon."

M249 SAW is the belt-fed light machine gun every Army rifle squad carries — 5.56mm, belt-fed from 200-round soft pouches, the squad-level automatic weapon that delivers the sustained fire the M4 cannot. The Marine Corps moved off the M249 to the M27 IAR (the magazine-fed automatic rifle every Marine rifleman carries) in the 2010s; the Army stayed with the M249 and is now transitioning the SAW role to the 6.8mm XM250 under NGSW. The SAW gunner is the heaviest-loaded dismount in the squad — the weapon, the spare barrel, the 600+ rounds of 5.56mm linked, the bipod, the everything. Every squad has at least one (typically two) SAW gunners, and the position is one of the most physically demanding in the rifle squad.

The US Marine Corps squad-level automatic rifle (M27 IAR, derived from the Heckler & Koch HK416 design), fielded since 2010 as a replacement for the M249 Squad Automatic Weapon in the Marine fireteam — provides the squad's suppressive-fire base of fire with greater accuracy and similar suppression than M249 — fielded at one M27 per Marine fireteam (three per squad) plus designated-marksman applications.

"The Marine M27 — squad-level automatic rifle, replaced M249 SAW."

M27 IAR is the Marine Corps squad-level automatic rifle — HK416-derivative, accurate, and intended to provide the fireteam's base of fire with greater accuracy than the M249 SAW it replaced (the trade-off is reduced sustained-fire capacity, since the M27 is a magazine-fed rifle rather than a belt-fed SAW). The decision to replace M249 with M27 was Marine-specific; the Army did not follow (Army squads retain M249 and have transitioned select close-combat formations to XM250 under NGSW). The M27 IAR is at one per Marine fireteam (three per squad), with additional designated-marksman applications. The platform reflects the Marine Corps philosophy on squad weapons: accuracy over volume, individual capability over heavy crew-served weapons at the squad level.

A US joint-service shoulder-fired 84mm recoilless rifle (Saab Bofors Dynamics Carl Gustaf M3 and M4 variants, US-designated M3 MAAWS), fielded across Army, Marine Corps, and SOF formations for anti-armor, anti-structure, and anti-personnel use — fires a wide family of 84mm rounds (high-explosive, anti-tank, anti-structure, illumination, smoke, training, and dual-purpose rounds) — reloadable, distinguishing it from the disposable AT-4 in the same general weight class.

"The 84mm Carl Gustaf reloadable recoilless — anti-armor and anti-structure family."

M3 MAAWS is the Carl Gustaf — the 84mm shoulder-fired recoilless rifle the joint force fields for anti-armor, anti-structure, and anti-personnel use. Unlike the disposable AT-4 (next entry), the MAAWS is reloadable, which makes it a sustained-engagement weapon — the gunner and assistant gunner work the system together, the assistant loading the next round after each shot. The round family is broad: HEAT for armor, HE for structures and area effects, HEDP for combined effects, illumination, smoke, and training rounds. Originally introduced into US service through SOF in the 1990s, the M3 MAAWS expanded into the conventional Army (Ranger battalions, infantry weapons squads, selected formations) and into Marine Corps use. The M4 lighter variant is in selective fielding. Most Veterans of the last two decades have at least seen one; many infantry soldiers have shot one in training.

A US joint-service 40mm low-velocity grenade launcher (Heckler & Koch design) fielded as the replacement for the M203, capable of being run as a standalone weapon (with included pistol grip and folding stock) or as an under-barrel attachment to the M4/M16 — features a side-opening breech that accepts longer 40mm cartridges (medium-velocity rounds) that the M203 cannot accommodate.

"The M203 replacement — standalone or underbarrel, side-opening breech for longer rounds."

M320 is the M203 replacement the Army began fielding in the late 2000s and that has been progressively expanding across the force — same 40x46mm round family, but a side-opening breech instead of the M203 slide-forward, and the option to run standalone with the included pistol grip and folding stock when the under-barrel role doesn't fit. The standalone configuration matters because the grenadier can carry the M320 in addition to (rather than instead of) a full-length rifle, and the side-opening breech accepts medium-velocity rounds the M203 cannot. Marines have transitioned to M320 in most formations; Army fielding continues. The squad grenadier in a modern formation more often carries an M320 than an M203, though both remain in service.

The US joint-force standard 5.56x45mm NATO carbine, derived from the M16 rifle family with a shorter barrel (14.5 inches) and a collapsible buttstock — fielded across the Army, Air Force, Navy, Marine Corps, and Coast Guard as the standard individual combat weapon, with the M4A1 variant adding full-automatic capability and a heavier barrel — paired with the M68 CCO or other rail-mounted optics and the PEQ-15 laser aiming module.

"The joint-force standard carbine — every service member trains and fights on it."

M4 is the carbine every service member knows — 5.56mm, 14.5-inch barrel, collapsible stock, the joint-force standard rifle from the late 1990s onward. The basic M4 (semi and three-round burst) is the conventional-force standard; the M4A1 (full auto, heavier barrel) is the SOF and select-issue variant that's gradually replacing the basic M4 across more formations. Every joint service member trains and qualifies on the M4 — Army, Air Force, Navy, Marines (since the M27 IAR didn't replace the M4 for everyone), and Coast Guard. The M4 is what you carry, what you clear at the entrance to a chow hall, what you sling on your back through a 12-mile foot march. The NGSW transition is eventually replacing M4 in close-combat formations with the XM7, but the M4 will remain in the joint inventory for many years.

The full-automatic-capable variant of the M4 carbine, originally fielded to US Special Operations Forces and selectively expanded to conventional formations — features a heavier "SOCOM profile" barrel for improved heat dissipation during automatic fire, full-auto fire selector (replacing the three-round burst of the basic M4), and ambidextrous and improved control features in newer production — increasingly the standard issue M4 variant across the Army.

"The full-auto M4 variant — SOCOM-origin, increasingly standard across the Army."

M4A1 is the full-auto M4 — heavier barrel for sustained automatic fire, full-auto selector (no three-round burst), originally SOCOM-issue and increasingly the standard Army issue as the basic M4 is upgraded or replaced in the supply chain. The functional difference matters in close-quarters work — a SOF operator clearing a building uses bursts the basic M4 burst-only selector couldn't deliver, and the heavier barrel handles the sustained fire without thinning. The Army's "M4A1 transition" rolled the A1 standard out across conventional formations through the 2010s, and most Army rifles a soldier picks up in 2026 are A1s even if the soldier still calls it "the M4." The NGSW transition to XM7 will eventually replace the M4A1 in close-combat formations, but the timeline is years.

The current US joint-service general-purpose protective mask, fielded across the Army, Navy, Air Force, and Marine Corps to replace the legacy M40 and MCU-2/P masks, providing 24-hour protection against chemical and biological agents through dual filter canisters with a single-lens visor design and improved field of view, donning, and drinking-tube capability.

"The current joint protective mask — replaced the M40."

M50 is the mask currently in joint-service inventory — the dual-canister design with the single-lens visor that replaced the legacy M40 and MCU-2/P. Fitting is required and individual (each service member has a personally-fitted mask with their identifying information inside); donning under 9 seconds is the typical training standard. The M50 is more comfortable and gives better visibility than the M40 it replaced, but "more comfortable than the M40" is a low bar — the mask remains hot and restrictive and is a small but real performance burden. The mask is one of the few pieces of equipment that follows the service member by name.

A US joint-force 12-gauge pump-action combat shotgun (Mossberg 500 and 590 variants), fielded across the Army, Marine Corps, Navy, and Air Force as the breaching and security shotgun — used for door breaching with frangible breaching rounds, for security and law-enforcement-type roles, for casualty-clearing situations (less-lethal rounds), and as a secondary weapon in selected formations.

"The 12-gauge pump shotgun — breaching, security, and less-lethal roles."

M500 (and the related M590) is the 12-gauge pump-action shotgun the joint force runs for breaching and security work — frangible breaching rounds for door locks and hinges, buckshot for close-quarters work, slug rounds for harder targets, less-lethal rounds for crowd-control and detention scenarios. Combat engineers, military police, security forces (Air Force), MAA (Navy master-at-arms), and selected infantry roles carry the M500. The pump action is reliable, the manual of arms is straightforward, and the weapon is rugged enough for the environments it sees. A door-breaching team in a deployed infantry company typically runs an M500 or M590 with breaching rounds; the alternative is explosive breaching or mechanical breaching, but the shotgun is the fastest, simplest option for most doors.

A US Army and Marine Corps combat-engineer obstacle-breaching system, comprising a 350-foot length of line charge (containing explosive composition C-4 in a flexible plastic sheath), launched by rocket from a trailer or vehicle-mounted launcher to detonate and clear a path through a minefield or obstacle belt — fielded across combat engineer units and integrated with the ABV Assault Breacher Vehicle.

"The MICLIC — 350-foot rocket-launched line charge, clears mines and obstacles."

M58 MICLIC is the rocket-launched line charge combat engineers use to clear paths through minefields and complex obstacles — a 350-foot length of explosive-filled flexible tube, launched by rocket motor across the obstacle, then detonated to clear a path approximately 9 feet wide and 100 meters long. The system has been in service since 1989 with continuous use across Desert Storm, OIF, OEF, and other operations. MICLIC is launched from the M58 trailer (towed behind engineer vehicles) and from the ABV Assault Breacher Vehicle (which carries multiple MICLIC reloads). The system is one of the principal breaching tools for heavy formation engineer units; the doctrine of combined-arms breaching depends on MICLIC and follow-on equipment to defeat obstacle belts at speed under fire.

The US joint-force standard fragmentation hand grenade — spherical steel body containing approximately 6.5 ounces of Composition B explosive filler, total weight approximately 14 ounces, with a 4-to-5-second delay fuze — effective casualty radius of approximately 5 meters with fragments hazardous to approximately 15 meters — fielded as the standard hand-thrown frag for all joint services since the late 1960s.

"The standard frag grenade — joint-force standard since the late 1960s."

M67 is the frag grenade every joint service member trains on at basic training — the round green ball with the safety lever, the pull pin, the 4-to-5-second fuze. The effective casualty radius is roughly 5 meters; fragments are hazardous well beyond that, which is why the grenade range procedure is the elaborate ritual it is. Every soldier, Marine, sailor, and airman throws live M67s at qualification, and the institutional memory of the first live throw is part of the basic-training story. In combat, the M67 is the close-quarters tool for clearing rooms, denying terrain, and breaking contact — when distance and walls aren't enough, the frag is what closes the gap. Soldiers count the seconds after the spoon flies; the delay is short enough that throwing technique matters.

A US Army shoulder-fired (man-portable with bipod) 90mm recoilless rifle, fielded in the 1960s as a light anti-tank and bunker-defeat weapon and subsequently retired from active US service — replaced over time by shoulder-fired rocket launchers (M72 LAW, AT-4) and the M3 MAAWS family — retained in selected partner-nation inventories and visible in historical and Vietnam-era US operational records.

"Legacy 90mm recoilless rifle — Vietnam-era, retired from US service, replaced by rocket launchers."

M67 90mm recoilless rifle is the legacy weapon — fielded in the 1960s as a man-portable (bipod-mounted) anti-tank and bunker-defeat option, used extensively in Vietnam, and subsequently retired from active US service as shoulder-fired rocket launchers (M72 LAW, AT-4) and reloadable systems (M3 MAAWS) took over the role. A Veteran of the Vietnam era remembers the 90mm recoilless; a soldier in 2026 has never seen one in US inventory. The lineage matters for institutional memory — the M67 90mm is part of the family tree that runs through every modern US anti-armor and bunker-defeat decision, and the trade-offs the M67 made (heavy, two-man crew, but reusable and powerful) inform why the modern force tends toward disposable single-shot launchers at the squad level plus the reloadable MAAWS at the platoon level. Note: this M67 is the 90mm recoilless rifle, distinct from the M67 fragmentation grenade in this same batch.

A US joint-service shoulder-fired 66mm disposable single-shot anti-armor rocket launcher (M72 LAW family, multiple variants from the original M72A1 through the current M72A7/A9/A10 improvements), fielded since the Vietnam War as the lightest disposable anti-armor option at the individual-soldier level — telescoping launcher tube, single-shot, lower weight and smaller warhead than the AT-4, with continuing modernization through new variants.

"The 66mm disposable rocket — lighter than AT-4, in service since Vietnam."

M72 LAW is the lighter, smaller-warhead disposable anti-armor rocket — 66mm, telescoping launcher tube that extends before firing, single-shot, in service since Vietnam and continuously modernized. The lineage is long: M72A1 from the 1960s, through A2 and A3, into the modern A7/A9/A10 variants with improved warheads and fire control. The trade-off vs the AT-4 is warhead size and effect (the 66mm is meaningfully less than the AT-4's 84mm) for weight and packaging (the M72 is smaller, lighter, and tube-collapsible). For light infantry formations, airborne soldiers, and SOF carrying minimum kit, the M72 is sometimes the right anti-armor option even when AT-4s are available. The modern variants (A7 onward) have brought the M72 family back into broader use after a period of declining inventory.

Service-issued chemical-agent detection papers — M8 (color-change paper that distinguishes nerve, blister, and blood liquid agents) and M9 (adhesive paper that turns red on contact with liquid chemical agent vapor and aerosol without species identification) — used as the primary visual liquid-phase chemical-agent confirmation tools at the soldier level.

"The color-change chemical-detection paper — primary liquid-agent confirmation."

M8 and M9 paper are the simplest chemical detection in the joint inventory — paper that changes color when liquid chemical agent touches it. M8 is the small kit with color-coded indications for different agent classes; M9 is adhesive paper that turns red on contact and is typically banded around equipment, vehicles, and personal gear to indicate liquid-agent exposure. The papers don't detect vapor (JCAD does that), don't persist after exposure beyond the indication, and false-positive on a number of common substances (decontamination fluids in particular). Every CBRN training event includes M8/M9 familiarization; the papers are cheap, simple, and effective for what they do.

The US Army tracked armored recovery vehicle (M88A2 current production "Hercules" and M88A3 modernization), the principal recovery platform for the heavy fleet — capable of recovering M1 Abrams main battle tanks and other heavy armored vehicles from disabled or stuck positions — produced by BAE Systems, with continuing modernization through the M88A3 variant.

"The M88 Hercules — heavy armored recovery vehicle, recovers Abrams tanks."

M88 Hercules is the recovery vehicle the heavy fleet depends on — tracked, armored, with a hoist boom and winches strong enough to recover an Abrams that's lost mobility (disabled, stuck, or damaged in combat). The M88A2 Hercules has been the production variant for years; the M88A3 modernization updates the powerplant and other systems to extend service life. Every heavy armored formation has dedicated recovery sections operating M88s; the recovery mission is essential because Abrams and other heavy combat vehicles cannot be moved by ordinary wreckers. The vehicle has been in operation across Iraq, Afghanistan, and other engagements, and is one of the workhorses of armored maintenance.

The US joint-force 9x19mm NATO service pistol (Beretta 92FS-derived M9 and M9A1 variants), fielded as the standard sidearm from 1985 through approximately 2017 across the Army, Air Force, Navy, Marine Corps, and Coast Guard — replaced in service by the SIG Sauer P320-derived M17 and M18 Modular Handgun System under the Modular Handgun System (MHS) program.

"The 9mm joint sidearm 1985-2017 — Beretta 92, replaced by M17/M18."

M9 is the Beretta 9mm pistol that was the joint-force standard sidearm for 32 years — 1985 to roughly 2017 — and that essentially every Veteran from that era carried as their sidearm if they carried a pistol at all. The replacement story is the Modular Handgun System (MHS) program, which selected the SIG P320 platform as the M17 (full-size) and M18 (compact) and is now the joint standard. The M9 is still in inventory and will be for years (training units, reserve formations, and selected use cases retain it), but the new accessions are getting the M17/M18. A senior NCO who carried an M9 in Iraq or Afghanistan has muscle memory tied to the Beretta — the safety/decocker, the rounded trigger guard, the heel magazine release on the original A1. Every transition from M9 to M17 is a small retraining event.

The US Army's combat-engineer earthmoving vehicle (M9 ACE), in service since 1986 — tracked, lightly armored, with a bulldozer blade and earthmover capabilities — used by combat engineer units to construct fighting positions, fortifications, breach obstacles, and prepare ground for tactical operations under armor protection.

"The M9 ACE — combat engineer's armored bulldozer, 1986 to present."

M9 ACE is the combat engineer's armored earthmover — tracked, lightly armored (against small arms and shell fragments, not direct-fire weapons), with a bulldozer blade and earthmover bowl. The vehicle has been in Army service since 1986 and is the platform combat engineer units use to construct fighting positions (hull-down positions for tanks), fortifications, hasty obstacles, and prepare ground for tactical operations — all under armor protection, which the legacy commercial-style bulldozers cannot provide. The M9 ACE has been in service longer than originally planned and the modernization picture (the M9 was supposed to be replaced by the Joint Assault Bridge / armored breaching platforms over time) is still incomplete. Combat engineer companies in heavy formations have M9 ACEs.

The US joint-force standard rifle bayonet, compatible with the M16 rifle and M4 carbine bayonet lug, with a 7-inch blade and a polymer grip — features a saw-tooth back edge and a sheath that doubles as a wire-cutter when paired with the bayonet blade — fielded from the late 1980s onward as the joint-issue bayonet replacing the legacy M7 — issued through CIF as OCIE and carried by every basic-trained soldier and Marine.

"The joint-issue rifle bayonet — wire-cutter sheath, saw-back blade."

M9 bayonet is the joint-issue rifle bayonet — 7-inch blade, polymer grip, wire-cutter sheath, saw-tooth back edge, the bayonet that fits the M16 and M4 lug and that every basic-trained soldier and Marine has handled. The bayonet course (or its modern equivalent — bayonet training has been de-emphasized in some service curricula and retained in others) is one of the rites of basic training; "spirit of the bayonet" calls and pugil-stick training are part of the institutional memory of every Veteran of the era. The wire-cutter feature (the blade and sheath together cut concertina wire) is the practical engineering touch that distinguishes the M9 from earlier bayonets. The actual operational use of bayonets in modern combat is extremely rare; the bayonet's function is largely as a fixed-knife utility tool, a piece of training, and a symbol. Note: this M9 bayonet is distinct from the M9 Beretta sidearm in this same batch.

A shoulder-fired, infrared-guided surface-to-air missile system carried and operated by an individual or small crew, designed to engage low-altitude fixed-wing aircraft, helicopters, and unmanned aerial systems — US examples include the FIM-92 Stinger; foreign systems include the Russian Igla and Verba families and the Chinese FN-6 (DoD Dictionary, November 2021).

"MANPADS — shoulder-fired surface-to-air missile (Stinger and foreign equivalents)."

MANPADS is the shoulder-fired SAM that has shaped low-altitude tactical aviation since the 1970s — the FIM-92 Stinger on the US side, the SA-7/14/16/18/24 family on the Soviet/Russian side, and a growing list of Chinese, Iranian, and other variants in circulation. For the friendly aviator, MANPADS is the reason rotary-wing and low-altitude fixed-wing aircraft fly with infrared countermeasures (flares, DIRCM systems like CIRCM), the reason missions get planned around terrain masking, and the reason ingress-egress geometry matters. For the ground force, MANPADS in friendly hands (Stinger teams, M-SHORAD launchers carrying Stinger) is the inner ring of air defense against helicopters and UAS. MANPADS proliferation outside state control — the manportable systems that get loose from arsenals and end up with non-state actors — has been an enduring counterterrorism concern.

A Navistar International MRAP variant family (MaxxPro Base, Plus, Dash, Recovery, Long Wheel Base, MaxxPro DXM), procured in the largest numbers of any MRAP variant during the 2007-2010 rapid-acquisition surge — over 9,000 produced in multiple sub-variants — fielded across Army, Marine Corps, and joint force operations in Iraq and Afghanistan, with significant divestment after major operations concluded.

"The MaxxPro MRAP family — Navistar, largest MRAP procurement."

MaxxPro is the largest-numbered MRAP family — Navistar International-built, over 9,000 vehicles produced in multiple sub-variants (Base, Plus, Dash, Recovery, Long Wheel Base, the heavier DXM). The vehicle was procured in massive numbers during the 2007-2010 surge to address the Iraq IED threat. Its capabilities matched the Category I MRAP profile: 6-passenger crew capacity (Base/Plus), V-hull, significant armor. Post-OEF, most MaxxPros were divested (transferred to allies including Iraq and Afghanistan, or scrapped) but some were retained for specialty roles. The MaxxPro fleet at its peak was one of the most numerous armored vehicle types in joint inventory; the divestment story is part of the broader force-design recalibration after OIF/OEF.

The US Air Force Special Operations Command mobility-and-infiltration variant of the C-130 Hercules — current production MC-130J Commando II provides aerial refueling of helicopters and tiltrotors, low-level infiltration and resupply, and combat search-and-rescue support — the legacy MC-130H Combat Talon II and MC-130P Combat Shadow variants have been progressively retired or transitioned to MC-130J — providing the AFSOC long-range SOF mobility and refueling capability.

"The AFSOC C-130 — Combat Talon and Combat Shadow lineage, refuels helicopters."

MC-130 is the AFSOC variant of the C-130 Hercules — current production MC-130J Commando II combines the legacy MC-130H Combat Talon II (low-level infiltration and resupply) and the MC-130P Combat Shadow (aerial refueling of helicopters and tiltrotors) into a single airframe variant. The aircraft refuels MH-60 Pave Hawk and HH-60W Jolly Green II rescue helicopters and CV-22B Osprey SOF tiltrotors, performs low-level infiltration and resupply of SOF elements, and provides extended-range SOF mobility. AFSOC operates the type from Cannon AFB, Hurlburt Field, and forward-deployed locations. The aircraft is part of the broader AFSOC mobility-aviation enterprise alongside AC-130 Gunship and the rotary-wing tiltrotor fleet.

Per the DoD Dictionary of Military and Associated Terms (November 2021), an Army watercraft system used to discharge cargo from ships across the shore at unimproved beaches or damaged ports — comprising floating causeway sections, warping tugs, and supporting equipment that allow logistics-over-the-shore (LOTS) operations where a fixed port is not available or not usable.

"The modular causeway system — Army floating pier for cargo discharge over beaches."

MCS is the Army watercraft modular system that turns a beach or a damaged port into a usable cargo discharge point — floating causeway sections that get pushed into place by warping tugs, allowing trucks and rolling stock to drive off Roll-on/Roll-off ships and Logistics Support Vessels onto the shore. The system is essential to joint logistics-over-the-shore (LOTS) operations and to the Army watercraft community at the 7th Transportation Brigade (Expeditionary) and reserve transportation units. The MCS has been continuously relevant — every major contingency where a fixed deep-water port is unavailable or denied is an MCS scenario. The 2025 Gaza humanitarian pier operation reminded the joint force of both the value and the operational fragility of causeway operations.

The indigenous Israeli main battle tank family — developed and produced by the Israeli Ordnance Corps and MANTAK (Israel Ministry of Defense Tank Production Directorate) — operational with the IDF Armored Corps across four mark variants (Mk I, Mk II, Mk III, Mk IV) since the late 1970s — distinctive front-mounted engine for crew protection, modular composite armor, and (on Mk IV) integration of the Trophy active protection system — current frontline variant is the Merkava Mk IV with the Barak block upgrades.

"Merkava — Israeli main battle tank, four mark variants, front-mounted engine."

Merkava is the indigenous Israeli main battle tank family — designed in the 1970s by the Israeli Ordnance Corps and produced by MANTAK, the Israeli MOD tank production directorate. The distinctive design choice is the front-mounted engine, sacrificing some conventional design features in exchange for additional crew protection from frontal-arc engagements and the capability to use the rear compartment for limited personnel transport in some configurations. The fleet has progressed across four mark variants (Mk I, Mk II, Mk III, Mk IV) with modular composite armor, the Trophy active protection system on Mk IV, and the current Barak block upgrade providing further sensor and survivability enhancements. The Merkava chassis is the basis for the Namer heavy IFV, extending the platform family beyond the tank role. For US Army armor counterparts, Merkava is the partner-nation main battle tank with one of the most operationally tested protection design philosophies.

The US Navy multi-mission helicopter family (MH-60R Sea Hawk for anti-submarine and anti-surface warfare, MH-60S Knight Hawk for combat search and rescue, vertical replenishment, mine countermeasures, and combat support), Sikorsky prime, derived from the UH-60 Black Hawk airframe — the principal Navy carrier-air-wing and surface-combatant helicopter, operated from carrier decks, destroyer and cruiser flight decks, and amphibious ship flight decks.

"The Navy helicopter family — MH-60R for ASW, MH-60S for CSAR/utility, ship-based."

MH-60 Sea Hawk is the Navy helicopter family that flies from every Navy ship with a flight deck — MH-60R Sea Hawk for anti-submarine and anti-surface warfare (sonobuoy dispenser, dipping sonar, Hellfire and Penguin anti-ship missile carriage), MH-60S Knight Hawk for combat search and rescue, vertical replenishment of stores between ships, mine countermeasures, and combat support. The aircraft derives from the same UH-60 Black Hawk lineage as the Army's utility helicopter but with significant Navy-specific modifications. Carrier air wings carry MH-60R/S as essential ASW and utility capability; the destroyer and cruiser flights provide each combatant with organic helicopter coverage.

Per the DoD Dictionary of Military and Associated Terms (November 2021), the family of equipment used to move, lift, stack, and load cargo and materiel — including forklifts, rough-terrain forklifts (RTFL), all-terrain cranes, container handlers, pallet jacks, and similar equipment — essential to terminal operations, supply support activity operations, and the broader joint distribution enterprise.

"Materials handling equipment — forklifts, container handlers, the gear that moves the cargo."

MHE is the family of equipment that actually moves stuff inside warehouses, on flightlines, at ports, and in supply yards — forklifts (the workhorse 4K and 6K variants), rough-terrain forklifts that can operate off the concrete, all-terrain cranes, container handlers (the giant top-loaders that move TEU/FEU containers), pallet jacks, and the rest. Every Class IX yard, every APOD/SPOD, every supply support activity lives and dies by its MHE availability. Operator certification (license issued by the unit) is the gating constraint that makes a deployed S4 nervous — you can have all the forklifts in the world and no one current to drive them. MHE shortages and operator-availability gaps show up as cargo sitting on pallets while a movement window closes.

A US military combat helmet originally developed for special operations forces in the late 1990s and early 2000s by Natick Soldier Research, Development and Engineering Center, featuring a higher cut around the ears (to accommodate communications headsets), a pad suspension system, and an improved retention harness — the direct design predecessor to the Advanced Combat Helmet (ACH) adopted across the broader Army.

"The SOF-developed helmet that became the design basis for the ACH."

MICH is the helmet the SOF community ran before the ACH became the conventional-force standard — higher ear cut so a headset would fit, the pad suspension that everybody now takes for granted, the four-point retention. The Army conventional force essentially adopted the MICH design as the ACH and fielded it in the early 2000s; SOF kept iterating into bump helmets and Ops-Core-class shells. A Veteran who says "MICH" is usually telling you either that they served in the SOCOM community in the GWOT era or that they came up in the brief window when the conventional force was transitioning from PASGT to the MICH-derived ACH. The lineage matters because every modern conventional-force combat helmet traces back to MICH design decisions.

A US Special Operations Command type-classified 5.56x45mm NATO designated-marksman rifle, derived from the M16/M4 platform with an 18-inch heavy barrel, free-floating handguard, and precision-grade optics — fielded primarily through SOF formations from the early 2000s as the 5.56mm precision rifle for the designated marksman role, largely retired or replaced in current SOF inventory as 6.8mm and 7.62mm options have taken over the precision-marksman role.

"The legacy 5.56mm SOF designated marksman rifle — largely retired/replaced."

Mk 12 SPR is the legacy 5.56mm SOF designated-marksman rifle — 18-inch heavy barrel, free-floating handguard, precision optic, the AR-platform precision rifle SOF formations ran in the 5.56 caliber from the early 2000s onward. The role has largely shifted as 7.62mm designated-marksman options (M110 SASS, Mk 17 SCAR-H in some roles) and the broader 6.8mm transition (NGSW) have changed what "designated marksman" looks like. Most Mk 12 inventory has been retired or repurposed, and a SOF operator today is unlikely to be issued one as a primary weapon. But the rifle is recognizable in GWOT-era SOF photography, and the lineage informed every subsequent AR-platform precision-rifle decision. Veterans of SOF formations in the 2000s remember the Mk 12; it was the bridge between the M4 and the dedicated 7.62mm precision rifles.

A US Special Operations Command type-classified 7.62x51mm NATO battle rifle (FN Herstal SCAR-H, designated Mk 17 by USSOCOM), fielded as the heavier 7.62mm variant in the SCAR family alongside the lighter 5.56mm Mk 16 SCAR-L (the Mk 16 was largely dropped from SOF use) — provides 7.62mm precision and penetration at carbine ranges in a modern modular platform with rail interfaces and barrel-change capability.

"The 7.62mm SCAR — SOCOM type-classified, designated marksman and close-range 7.62 role."

Mk 17 is the SCAR-H — the 7.62mm SOF battle rifle USSOCOM type-classified from the FN SCAR family. The Mk 16 (5.56mm SCAR-L) was largely dropped from SOF use after fielding decisions favored sticking with the M4A1 in the 5.56 role, but the Mk 17 stuck for the heavier 7.62 role: more penetration, longer effective range, and the modularity to swap barrels for different mission profiles. SOF operators use the Mk 17 in roles that overlap with designated marksman and SOF-specific 7.62 applications. The conventional Army stayed with the M14 (legacy, see below) and the M110 SASS for 7.62 needs; SOF has the Mk 17 in that slot. A SOF Veteran who came up after roughly 2010 has likely run a Mk 17 at some point.

A US Naval Surface Warfare Center Crane Division-developed M4-pattern carbine variant with a 10.3-inch barrel (significantly shorter than the M4's 14.5-inch barrel), designated the Close Quarters Battle Receiver (CQBR) and fielded primarily to Naval Special Warfare and other SOF elements for close-quarters work where the shorter barrel's maneuverability outweighs the loss of velocity and effective range.

"The 10.3" M4-pattern CQB carbine — SOF close-quarters use, Crane-developed."

Mk 18 is the short-barrel M4 variant — 10.3-inch barrel instead of the 14.5-inch M4 standard, the receiver group developed by Naval Surface Warfare Center Crane for close-quarters battle. SOF elements (Naval Special Warfare, selected other SOF) run the Mk 18 when the work is inside buildings, vehicles, or other tight spaces where the standard M4 barrel length is awkward. The trade-off is velocity and effective range — the 10.3-inch barrel delivers significantly less muzzle velocity than the 14.5-inch standard, which matters at longer engagement distances. The Mk 18 lineage is SOF-specific; a conventional soldier won't be issued one. But it's recognizable on sight in operator photos from the GWOT era and afterward.

The US joint-force 40mm belt-fed automatic grenade launcher (Mk 19 Mod 3), fielded as the vehicle-mounted heavy area-suppression weapon paired with or alternated to the M2 .50-cal on ring mounts and crew-served platforms — fires the 40x53mm high-velocity grenade cartridge (distinct from the lower-velocity 40x46mm round of the M203/M320) at sustained rates up to 60 rounds per minute.

"The belt-fed 40mm AGL — vehicle-mounted, ring-mount alternative to the .50-cal."

Mk 19 is the 40mm automatic grenade launcher — belt-fed, vehicle-mounted, the AGL that goes on the ring mount when the gunner wants area suppression instead of point fire from the .50-cal. The rounds are the 40x53mm high-velocity variant (different cartridge from the M203/M320 low-velocity 40mm), which means a Mk 19 round has different range and effect than the underbarrel grenade rounds. Every Army convoy and many static-defense positions can run a Mk 19; the choice between Mk 19 and M2 on a given mount depends on the threat (.50-cal for vehicles and hard targets, Mk 19 for dismounted and area threats). The Mk 47 (next-generation improved AGL) is the SOF-driven successor; Mk 19 remains the conventional-force standard.

The US Navy's standard vertical launching system (VLS) for surface ships, deployed across Aegis cruisers and destroyers, providing 32, 64, 96, or 122-cell modules depending on ship class — supporting the Standard Missile family (SM-2, SM-3, SM-6), Tomahawk cruise missiles, ESSM Evolved SeaSparrow, and other vertical-launched munitions — operational since the 1980s with continuous modernization.

"The Navy VLS — Mk 41 cells fire Tomahawk, SM-3, SM-6, ESSM, and more."

Mk 41 is the vertical launching system that defines what a US Navy surface combatant can shoot — 32, 64, 96, or 122 cells (depending on class) loaded with whatever mix of SM-3, SM-6, Tomahawk, ESSM, ASROC, and other missiles the mission requires. The system is operational since the 1980s, has been continuously modernized, and remains the standard across Aegis-equipped ships. The Mk 70 Typhon (next entry) is the ground-launched Army adaptation. The Mk 57 VLS on Zumwalt-class destroyers is the larger-cell follow-on supporting CPS and other oversized missiles. Mk 41 is the launcher that ties together much of the Navy missile inventory.

A US Special Operations Command type-classified 40mm belt-fed automatic grenade launcher, fielded as an improved and lighter alternative to the Mk 19 Mod 3 in selected SOF formations — features integrated fire-control optics, programmable air-burst capability for some round types, and lighter weight than the Mk 19 — supplements rather than fully replaces the Mk 19 across the joint force.

"The improved 40mm AGL — SOF-issue, supplements the Mk 19 with smarter fire control."

Mk 47 is the improved 40mm automatic grenade launcher — SOCOM type-classified, fielded selectively in SOF formations as a complement to (not a wholesale replacement for) the Mk 19. The improvements over the Mk 19 are integrated fire-control optics, programmable air-burst rounds for some cartridge types (the round detonates over the target rather than on impact), and reduced weight. The Mk 19 remains the joint-force conventional standard; the Mk 47 lives in SOF inventory where the optics and air-burst capability justify the additional complexity. A SOF Veteran might run the Mk 47 on a vehicle ring mount; a conventional Army unit's ring mount is still a Mk 19 or an M2 .50-cal. Production numbers for Mk 47 are far smaller than for the Mk 19.

A US Army ground-mobile launcher (the Mid-Range Capability, MRC) based on Mk 41 VLS cells mounted on a containerized trailer, capable of firing the Tomahawk (TLAM, MST) and SM-6 missile families — providing the Army with ground-launched long-range conventional strike capability for the first time since the legacy INF Treaty restrictions, with initial fielding to Multi-Domain Task Forces.

"The Army's ground Mk 41 launcher — Tomahawk and SM-6 from trucks."

Mk 70 Typhon is the Army's ground-mobile adaptation of the Navy Mk 41 VLS — same launch cells, same missile inventory (Tomahawk land-attack, Tomahawk MST anti-ship, SM-6 multi-mission), but on a truck-mobile trailer that an Army Multi-Domain Task Force can position to shoot Navy missiles from land. The capability is one of the most significant force-structure additions of the post-INF era (the INF Treaty terminated in 2019, ending the constraint on US ground-launched intermediate-range missiles). Typhon batteries are being fielded to the 1st and 3rd Multi-Domain Task Forces. The 2024 forward deployment of a Typhon battery to the Philippines for joint exercises was a significant operational and political development.

Per the DoD Dictionary of Military and Associated Terms (November 2021), the Multiple Launch Rocket System — the M270 tracked self-propelled rocket and missile launcher, fielded by the US Army and partner nations, capable of firing the full family of Guided MLRS rockets and Army Tactical Missile System (ATACMS) munitions.

"The M270 MLRS — tracked rocket launcher, GMLRS rockets and ATACMS missiles."

MLRS is the M270 tracked launcher — the heavier, armored, tracked cousin of HIMARS, carrying two pods (12 rockets total, or 2 ATACMS missiles) instead of HIMARS's one. The two share the same munition family — Guided MLRS (the precision-guided 70km rocket that became the workhorse fires asset in Iraq, Afghanistan, and Ukraine), Extended-Range GMLRS, ATACMS missiles, and the future Precision Strike Missile (PrSM) — so the same Fire Direction Center handles both. The Army has been progressively divesting M270 in favor of HIMARS because HIMARS is C-130-deployable and HEMTT-derived, while keeping M270 in the National Guard and selected active formations and pursuing the M270A2 modernization. The trade-off vs HIMARS is firepower (twice the load) at the cost of weight, transportability, and signature.

Per the DoD Dictionary of Military and Associated Terms (November 2021), a marine mammal system — a US Navy capability that employs trained bottlenose dolphins and California sea lions for object detection, object recovery, and harbor and ship protection missions, operated by the Navy Marine Mammal Program at Naval Information Warfare Center Pacific in San Diego.

"The Navy marine mammal program — trained dolphins and sea lions for object detection and recovery."

MMS is the Navy's marine mammal capability — bottlenose dolphins trained to find moored and bottom mines, and California sea lions trained for object recovery and harbor defense, operated by what is now the Navy Marine Mammal Program at Naval Information Warfare Center Pacific in Point Loma. The program has been operational since the 1960s and has deployed to active operations, most publicly to clear approaches and harbors in past Gulf conflicts. The animals are still better than current robotic systems at certain object-detection tasks in cluttered acoustic environments, which is why the program has outlived multiple cycles of "unmanned underwater vehicles will replace dolphins next year." Animal welfare oversight has tightened significantly over the program's history, with veterinarians, training standards, and a published care framework that the program emphasizes in its public face.

Per the DoD Dictionary of Military and Associated Terms (November 2021), a small craft carried aboard Maritime Pre-positioning Force ships used to support offload and transfer operations between the ship and shore or other vessels — supports MPF instream and pierside offload operations during the buildup of a Marine Air-Ground Task Force ashore.

"The MPF utility boat — small craft aboard MPF ships for offload support."

MPFUB is the small utility craft that lives aboard Maritime Pre-positioning Force ships and supports the actual offload work — moving liaison personnel, light cargo, lines, and personnel between the MPF ship, other ships, and the shore during an instream offload, or supporting the pier-handling work during a pierside offload. The boats are unglamorous and essential — the MPF concept depends on being able to actually move equipment off the ships under varying conditions, and the utility boats are part of the deck machinery that makes it possible. For Navy beachmasters, MPF ship crews, and the Marine Corps Combat Logistics units doing the receiving end of an MPF offload, the MPFUBs are part of the everyday gear of the operation.

Per the DoD Dictionary of Military and Associated Terms (November 2021), Maritime Pre-positioning Ship refers to a US Navy/Military Sealift Command ship loaded with Marine Air-Ground Task Force equipment and supplies and forward-deployed in theater for rapid offload to support a MAGTF buildup; Military Planning Service refers to a UN Department of Peace Operations planning element supporting multinational peace operations planning.

"A Maritime Pre-positioning Ship — MSC ship loaded with MAGTF gear; or the UN Military Planning Service."

MPS most commonly means Maritime Pre-positioning Ship — the Military Sealift Command-operated ships forward-deployed in theater (historically with squadrons at Diego Garcia, Guam/Saipan, and the Mediterranean) loaded with the equipment, vehicles, ammunition, and supplies to outfit a Marine Air-Ground Task Force on arrival. The pre-positioning concept lets Marines fly in light and marry up to their heavy gear at the offload site rather than ship it all from CONUS. The secondary meaning, Military Planning Service, is the UN Department of Peace Operations planning element that supports UN peace operations planning at the strategic level — a much more obscure usage that surfaces only in joint operations with significant UN equity. Context disambiguates almost always; the maritime usage is the default in US service vocabulary.

A US General Atomics Group 4 medium-altitude long-endurance unmanned aircraft system, weighing approximately 2,250 pounds with armament, capable of carrying AGM-114 Hellfire missiles, in service from 1995 (initially as RQ-1 reconnaissance variant, MQ-1 strike-capable variant from 2002) — retired from US Air Force service in 2018, replaced by the larger and more capable MQ-9 Reaper, but with historical operational legacy that defined armed UAS use during the early GWOT.

"The legacy armed UAS — retired in 2018, replaced by MQ-9 Reaper."

Predator is the UAS that opened the era of armed unmanned combat — the system that introduced Hellfire-armed UAS strikes to the GWOT, that defined the operational and political stakes of remote-piloted lethal force, and that flew constantly in Iraq, Afghanistan, Yemen, Somalia, Pakistan, and elsewhere from the early 2000s through the 2010s. The Air Force retired Predator in 2018; MQ-9 Reaper replaced the mission. Predator's legacy in military doctrine, in the public discourse on remote warfare, and in the broader UAS trajectory is enormous. If a Veteran says they "flew Predator," they're placing themselves in the early-mid GWOT remote-piloted aviation community.

A US General Atomics Group 4 medium-altitude long-endurance unmanned aircraft system operated by the US Army (the Army analog of the Air Force's Predator/Reaper lineage), with electro-optical, infrared, signals intelligence, and synthetic aperture radar payload options and weapons capability (Hellfire and follow-on munitions) — fielded across Army aviation brigades for theater-level and division-level ISR and strike missions.

"The Army's Group 4 strike-capable UAS — division/theater ISR and strike."

Gray Eagle is the Army's answer to the Predator/Reaper line — a Group 4 MALE UAS operated by Army aviation brigades for division and theater-level ISR and strike. The platform has flown constantly across the GWOT theaters and remains operational. The Army owns and operates Gray Eagle for Army missions; the Air Force operates Reaper for joint and Air Force missions; the two airframes have different operational ownership, doctrine, and tasking flows even when capabilities overlap. The Gray Eagle program continues with capability upgrades and is positioned to remain in the Army inventory through the 2030s.

A Boeing Australia-developed uncrewed combat aerial vehicle — designated MQ-28A Ghost Bat and named after the Australian ghost bat species — intended as a "loyal wingman" platform operating alongside crewed combat aircraft to extend sensor reach, electronic warfare, and weapons capacity — first flight 2021, with continuing development and operational concept testing through the 2020s under the Air Combat Capability Programme.

"MQ-28 Ghost Bat — Boeing Australia loyal-wingman drone, Australian CCA-class programme."

The MQ-28A Ghost Bat is the Boeing Australia-developed loyal-wingman uncrewed combat air vehicle — designated MQ-28A in formal nomenclature, named after the Australian ghost bat (a native species), with first flight in 2021. The platform is intended to operate as a "loyal wingman" alongside crewed combat aircraft, extending sensor reach, electronic warfare, and weapons capacity. The programme is one of the more interesting allied collaborations in the Collaborative Combat Aircraft (CCA) space — Boeing Australia leading development with strong RAAF involvement, and significant US interest in the technology trajectory as US CCA programmes mature in parallel. For a US Air Force partner, MQ-28 is the Australian contribution to the broader CCA conversation; the technology, doctrine, and operational concepts developed in Australia inform the wider Five Eyes loyal-wingman enterprise.

A US Northrop Grumman Group 5 high-altitude long-endurance unmanned aircraft system operated by the US Navy, derived from the RQ-4 Global Hawk airframe with maritime-patrol-optimized sensors and integration with the P-8A Poseidon manned maritime patrol aircraft for combined unmanned-manned operations — the Navy's strategic maritime ISR UAS.

"The Navy maritime patrol UAS — Global Hawk derivative for the maritime mission."

Triton is the Navy's Global Hawk derivative — same airframe lineage, maritime-patrol-specific sensors (multi-function radar tuned for sea-surface tracking, EO/IR, signals intelligence), and an operational concept built around teaming with the manned P-8A Poseidon for shared maritime patrol effort. The system operates from Naval Air Station Patuxent River, Guam, and other strategic naval-aviation locations. Triton supports Indo-Pacific maritime ISR heavily; the program is a meaningful contributor to the broader maritime domain awareness mission. The platform is large enough that it isn't carrier-based — Triton operates from shore bases and supports the fleet from there.

A US General Atomics Group 5 hunter-killer unmanned aircraft system operated by the US Air Force, weighing approximately 4,900 pounds empty, with carriage for AGM-114 Hellfire, GBU-12 Paveway II, GBU-38 JDAM, and other weapons plus a wide sensor suite — the successor to the MQ-1 Predator and the operational workhorse for armed UAS missions in the post-2010 timeframe.

"The Air Force hunter-killer UAS — Predator's successor, current workhorse."

Reaper is the armed UAS the joint force is operating today — larger, faster, longer-ranged, and more heavily armed than the Predator it replaced, with a wider sensor and weapons suite. The platform has flown the bulk of US armed UAS missions since the late 2010s; the Air Force retired Predator in 2018 and concentrated the mission on Reaper. The program's future is uncertain in some respects — Reaper is well-suited to permissive environments but less survivable in contested airspace, which has the Air Force planning for follow-on systems with greater survivability. For permissive ISR/strike, Reaper remains the principal capability.

The umbrella term for a family of armored wheeled vehicles fielded rapidly during Iraq and Afghanistan operations (peaking 2007-2010) to defeat the IED threat that the legacy HMMWV could not protect against — comprising multiple manufacturers and variants (MaxxPro, Cougar, RG-31 Nyala, M-ATV, Buffalo route clearance, others) — over 27,000 MRAPs procured in the rapid-acquisition surge, with most divested or transferred to allied operators after major OIF/OEF operations concluded.

"The MRAP family — multiple variants surge-procured during Iraq/Afghanistan."

MRAP is the umbrella term for the rapid-acquisition family of mine-resistant, ambush-protected wheeled armored vehicles that the joint force fielded in massive numbers during Iraq and Afghanistan — over 27,000 vehicles procured in 2007-2010 at unprecedented pace, with multiple manufacturers (Navistar MaxxPro, Force Protection Cougar, BAE Systems RG-31 Nyala, Oshkosh M-ATV, others) producing variants in parallel. The vehicles defeated the IED threat that legacy HMMWVs could not survive; they saved many lives and reshaped tactical logistics. After OIF/OEF major operations concluded, the joint force divested most of the fleet (transferred to allies, scrapped, retained for training) because the heavy MRAPs didn't fit force-design assumptions for large-scale combat operations against peer adversaries. The MRAP procurement era is a major case study in rapid acquisition and force-design implications.

Per the DoD Dictionary of Military and Associated Terms (November 2021), Navy-managed deployable utility equipment, including generators, transformers, and related electrical and mechanical support capabilities, used to provide temporary or contingency utility support to installations, expeditionary sites, and disaster response operations.

"Mobile utilities support equipment — the Navy-managed deployable power and utility kit pool."

MUSE is the Navy's rotational stockpile of large mobile generators, transformers, and related utility equipment that gets pushed out to support installations during contingencies, recovery operations after storms, expeditionary bed-down sites, and similar requirements where the local electrical grid is gone or never existed. The equipment is high-capacity industrial gear — large diesel gensets, switchgear, distribution panels — not the small tactical generators in unit mod tables. After hurricanes, MUSE kit shows up at affected naval installations and sometimes at FEMA-led response sites under the appropriate authorities. For the public works officer at a stricken base, MUSE is the difference between running on a few unit generators for a week and having actual reliable power back in days.

Per the DoD Dictionary of Military and Associated Terms (November 2021), a modular tug employed by the Army watercraft and joint logistics-over-the-shore community to position causeway sections, lighters, and barges during joint logistics-over-the-shore (JLOTS) operations and improved port operations.

"A modular warping tug — small modular pusher tug for JLOTS causeway and barge handling."

MWT is the small modular pusher tug used during joint logistics-over-the-shore operations to nudge causeway sections, lighters, and barges into position when a beach has no real port and ships are discharging onto the shore through floating infrastructure. The tug is built in modules so it can be shipped in containers and assembled at the site, which matters because JLOTS by definition happens where shipping infrastructure does not exist. Army watercraft units (the few remaining ones) operate MWTs alongside Navy seabees and amphibious construction battalions during the trident operations that are slowly being relearned in the Indo-Pacific context. JLOTS sounded like a Cold War curiosity for a couple of decades; the Gaza pier operation in 2024 reminded the joint force how operationally hard the mission actually is.

A NATO commonly-funded and commonly-owned airborne early warning and control capability, comprising a fleet of E-3A Sentry AWACS aircraft (NATO-owned variants of the Boeing E-3) operated from Geilenkirchen Air Base in Germany — provides airborne early warning, air battle management, and surveillance support to Alliance air operations, with crews drawn from multiple NATO member nations.

"NATO's commonly-owned AWACS fleet — E-3A Sentry at Geilenkirchen DE."

NAEW&CF is the Alliance's commonly-funded and commonly-owned AWACS fleet — E-3A Sentry aircraft (NATO-owned variants of the Boeing E-3) operated from Geilenkirchen Air Base in Germany, with multinational crews. The capability provides airborne early warning, air battle management, and surveillance to Alliance air operations. NAEW&CF is one of NATO's longest-standing commonly-owned hardware programs, dating to the late 1970s and operationally consequential ever since. The E-3A fleet is approaching end of service life; the NATO Alliance Future Surveillance and Control (AFSC) program is the planned replacement, with the E-7 Wedgetail being one of the candidates considered. For US Air Force officers in NATO airborne C2 billets, NAEW&CF is the Alliance-owned counterpart to the US Air Force E-3 fleet.

An Israeli heavy infantry fighting vehicle / armored personnel carrier built on the Merkava main battle tank chassis — developed and produced by the Israeli Ordnance Corps and MANTAK — operational with the IDF Ground Forces since the late 2000s — designed for the heavy-protection requirements of urban operations and dense-threat environments, with armor protection levels comparable to a main battle tank — equipped with a remote weapon station and (in current configuration) the Trophy active protection system.

"Namer — Israeli heavy IFV on Merkava chassis, MBT-level armor protection."

Namer ("leopard" in Hebrew) is the Israeli heavy infantry fighting vehicle — built on the Merkava main battle tank chassis to bring main-battle-tank-level armor protection to the dismount-carrier role. The vehicle reflects Israeli operational lessons from urban operations and high-IED-and-ATGM-threat environments, where conventional lighter armored personnel carriers (M113-derivatives, Stryker-class wheeled vehicles) were judged inadequate for the protection requirement. Namer carries a remote weapon station, the Trophy active protection system in current configuration, and a dismount capacity of approximately nine soldiers in addition to the crew. For US Army counterparts wrestling with the dismount-carrier protection question in the context of the OMFV / XM30 program and the broader debate about the future of mounted infantry, Namer is a reference platform showing the design tradeoffs of building dismount carriers on tank chassis.

Per the DoD Dictionary of Military and Associated Terms (November 2021), the collective category of equipment and signals used by aircraft, ships, and ground forces to determine position and course — including TACAN, VOR, ILS, DME, GPS, and related navigation systems.

"NAVAIDS — the collective category for TACAN, VOR, ILS, GPS, and other navigation aids."

NAVAIDS is the catch-all category for the radio-and-satellite navigation equipment that aircraft, ships, and ground forces use to figure out where they are and where they are going — TACAN (the military-standard tactical air navigation system), VOR (the civil VHF omnirange), ILS (instrument landing system for precision approaches), DME (distance measuring equipment), GPS (and the encrypted M-code military variant), plus the legacy systems like LORAN that are being retired. The NAVAIDS layer is what makes weather-and-night operations actually feasible; without it, the joint force is back to dead reckoning and visual references. The Pentagon worries about NAVAIDS jamming and GPS denial because every modern operational concept assumes the navigation layer works — which is why M-code, alternative PNT (positioning, navigation, and timing), and resilient backup navigation are continuing program priorities.

Per the DoD Dictionary of Military and Associated Terms (November 2021), a navigation satellite — a satellite (NAVSTAR GPS being the principal US example, alongside foreign systems Galileo, GLONASS, BeiDou, and regional systems) that provides positioning, navigation, and timing (PNT) signals to military and civil users.

"NAVSAT — a positioning, navigation, and timing satellite (GPS being the principal US example)."

NAVSAT is the generic term for a positioning-navigation-and-timing satellite; in US service the principal NAVSAT constellation is NAVSTAR GPS, currently transitioning across the GPS III and GPS IIIF blocks under the Space Force. The "satellite" piece is the boring part — what matters operationally is that virtually every modern US weapons system, vehicle, aircraft, and dismounted soldier depends on GPS for position, timing, or both, and the adversary force knows this. The vulnerability of dependence on NAVSAT signals is what drives the entire NAVWAR portfolio of jam-resistance, alternative PNT, and inertial-navigation modernization. Foreign NAVSAT systems (Galileo, GLONASS, BeiDou, QZSS, NavIC) provide alternative sources but raise their own operational and security questions.

Per the DoD Dictionary of Military and Associated Terms (November 2021), the Nuclear Command and Control System — the system of facilities, equipment, communications, procedures, and personnel that implements nuclear command and control (NC2) for the National Command Authority, including warning systems, communications, decision-support tools, and the dual-phenomenology assured-communications architecture that supports survivable execution.

"NCCS — the system implementing NC2 (warning, comms, decision support, survivable architecture)."

NCCS is the actual hardware, software, communications paths, facilities, procedures, and trained personnel that implement the nuclear command-and-control function. It includes the warning systems (SBIRS in space and ground-based radars at PARCS, Cobra Dane, the BMEWS legacy sites), the assured-communications architecture (AEHF satellites, the Survivable Low Frequency Communications System, hardened terrestrial links, airborne command posts including the E-4B Nightwatch and E-6B Mercury), and the decision-support infrastructure at USSTRATCOM and the National Military Command Center. NCCS is one of the most heavily-resourced and procedurally-disciplined systems in DoD; the modernization of NC3 (the NCCS family) is a continuing major investment area through the 2020s and 2030s.

A ground-based radio-navigation aid (nondirectional beacon) that transmits an omnidirectional radio signal in the low/medium frequency band, allowing aircraft equipped with an automatic direction finder (ADF) to determine bearing to the station — provides a basic navigation aid for en-route navigation, approach, and emergency procedures, particularly in austere or remote operating environments.

"A low-frequency ground beacon aircraft use for bearing — basic, austere-environment navigation."

NDB is one of the oldest navigation aids still in service — a ground transmitter that puts out an omnidirectional low/medium-frequency signal, and an aircraft with an ADF needle uses the bearing to navigate to or away from the station. In the modern GPS world, NDB approaches are being phased out in many places, but they still matter in the parts of the operating environment where US forces fly: austere airfields with no instrument landing system, partner-nation infrastructure that has not modernized, and emergency procedures when more capable navigation aids are degraded. For a C-130 navigator (legacy), a CH-47 or HH-60 crew doing tactical instrument approaches, or anyone flying into Africa or parts of the Pacific, NDB approaches are still in the procedure binder.

A US Army soldier-worn networked situational awareness and tactical mission command system, comprising an Android-based smartphone-class End User Device (EUD) connected to the squad radio for connectivity and providing access to mission command applications, friendly-force tracking, mission planning, and other tactical functions — named after Colonel Robert B. Nett (Medal of Honor recipient WWII) — fielded across Army infantry formations from the 2010s onward.

"The Nett Warrior — Army soldier-worn Android EUD for situational awareness."

Nett Warrior is the Army's soldier-worn networked situational awareness system — Android-based End User Device (EUD, smartphone or larger handheld) connected to the squad radio for tactical-network connectivity, running applications for friendly-force tracking, mission command, mapping, mission planning, and other functions. The system is named after Colonel Robert B. Nett, Medal of Honor recipient for WWII Philippines combat action. Nett Warrior has been fielded across Army infantry formations from the 2010s onward; the application stack includes ATAK and other tactical applications, with continuing capability expansion as the underlying smartphone hardware evolves. The system is part of the broader Soldier Lethality Big Six priority area and integrates with ENVG-B and IVAS at the soldier-system level.

A US Space Force follow-on program to the legacy SBIRS missile-warning satellite constellation, comprising next-generation infrared-sensor satellites in geosynchronous orbit (Next-Gen OPIR GEO, Lockheed Martin prime) and highly-elliptical orbit (Next-Gen OPIR Polar, Northrop Grumman prime) with improved sensor sensitivity, improved scan rates, and improved resilience against adversary counterspace actions — first launches targeted for the mid-2020s.

"The SBIRS successor — improved sensors, better scan, harder to defeat."

Next-Gen OPIR is the SBIRS successor — improved infrared sensors for missile warning with better sensitivity, better scan rates, and improved resilience against the kind of counterspace actions that adversaries are expected to bring to the next conflict. The program splits geosynchronous-orbit satellites (Next-Gen OPIR GEO, Lockheed Martin) from polar/highly-elliptical-orbit sensors (Next-Gen OPIR Polar, Northrop Grumman) to optimize each variant for its orbit's mission. First launches were targeted for the mid-2020s with the constellation building out through the late 2020s. The legacy SBIRS constellation continues to operate alongside Next-Gen OPIR through the transition period.

A US Missile Defense Agency program to develop the successor to the legacy Ground-Based Interceptor (GBI) for the Ground-based Midcourse Defense (GMD) system — Lockheed Martin won the prime contract in April 2024 (Northrop Grumman had been competing) — designed to provide improved kill-vehicle capability, including multi-kill-vehicle architecture, with first emplacement targeted for the late 2020s.

"The GBI successor for homeland missile defense — Lockheed Martin lead."

NGI is the missile that replaces GBI in the GMD homeland missile defense system — Lockheed Martin won the prime contract in 2024 after a competitive development phase against Northrop Grumman. The architecture includes multi-kill-vehicle capability (the ability to engage multiple targets with a single interceptor) and improved capability against modern threats including countermeasures, decoys, and possibly MIRV-style threat presentation. First emplacement is planned for the late 2020s; the GMD inventory will be a mix of legacy GBI and NGI for several years during the transition.

The US Army's replacement small-arms program for the 5.56mm M4 Carbine and M249 Squad Automatic Weapon — the XM7 (Sig Sauer rifle, formerly XM5) and XM250 (Sig Sauer automatic rifle, formerly XM250 / XM-LMG), both chambered in 6.8x51mm common cartridge with hybrid case construction, fielded with the XM157 fire control optic — initial fielding to close-combat formations beginning in the early 2020s.

"The Army's new 6.8mm squad weapons — replacing M4 and M249 in close-combat units."

NGSW is the once-in-a-generation small-arms transition — moving close-combat formations off the 5.56mm M4 and M249 onto a new 6.8x51mm cartridge with the XM7 rifle and XM250 automatic rifle. The driver: a 6.8mm round with enough kinetic energy to defeat modern body armor at meaningful ranges, where 5.56mm increasingly cannot. The fielding plan emphasizes close-combat formations (infantry, scouts, combat engineers, SF, etc.) first; the broader force continues on M4/M249 for the foreseeable future. The XM157 smart optic (Vortex / Sheltered Wings) is the matching fire-control system. NGSW is one of the most consequential small-arms decisions in modern US Army history; whether it succeeds operationally remains to be seen as fielding expands.

The US Navy nuclear-powered aircraft carrier class comprising 10 ships (CVN-68 USS Nimitz through CVN-77 USS George H.W. Bush), built between 1968 and 2009, displacing approximately 100,000 tons full load, with 4.5-acre flight decks, two A4W nuclear reactors providing essentially unlimited range, and a service life of approximately 50 years — being supplemented and progressively replaced by the Ford-class beginning with CVN-78 USS Gerald R. Ford.

"The 10 Nimitz-class CVNs — the backbone of the current carrier fleet."

Nimitz-class is the carrier class that has been the backbone of US naval power for five decades — 10 ships, USS Nimitz (CVN-68) commissioned 1975 through USS George H.W. Bush (CVN-77) commissioned 2009. Each ship displaces approximately 100,000 tons, runs on two A4W nuclear reactors that need refueling only once in the 50-year service life (the RCOH Refueling and Complex Overhaul at Newport News), and operates a Carrier Air Wing of approximately 60-70 aircraft. The class is now progressively being supplemented by Ford-class, with Nimitz-class retirements expected to begin in the late 2020s and continue across the 2030s as each ship reaches end of service life. The class has flown every major US air operation since Vietnam.

Per the DoD Dictionary of Military and Associated Terms (November 2021), a weapon, device, or munition explicitly designed and primarily employed to incapacitate targeted personnel or materiel immediately, while minimizing fatalities, permanent injury to personnel, and undesired damage to property in the target area and the environment.

"A nonlethal weapon — designed to incapacitate without lethal effect, governed by the JNLWD portfolio."

NLW is the formal doctrinal label for the capability set the Joint Nonlethal Weapons Directorate manages — acoustic hailing devices (LRAD), optical dazzlers (Ocular Interruption), blunt-impact munitions (40mm sponge round, FN 303), area-denial systems (vehicle stoppers like the Pre-Emplaced Vehicle Stopper), Active Denial System (the millimeter-wave system designed for crowd dispersal at distance), and a broader portfolio. The capabilities are designed for situations where lethal force is not appropriate or not legal but where some kind of physical effect is needed — crowd control, force protection at gates and checkpoints, escalation-of-force ladder. The capability set is small, controversial in places (Active Denial drew significant scrutiny), and operationally important in stability and irregular-warfare contexts. JNLWD is the joint program office that owns the portfolio.

A US Marine Corps unmanned ground-launched anti-ship missile system, comprising the ROGUE-Fires unmanned JLTV launcher carrying two Naval Strike Missile (NSM) anti-ship missiles — designed for the Marine Littoral Regiment's sea-denial fires mission against adversary surface ships in the Indo-Pacific theater — operational since the early 2020s with continuing capability expansion.

"The Marine ground-launched anti-ship missile — NSM on the ROGUE-Fires unmanned JLTV."

NMESIS is the system that gives Marine Littoral Regiments their anti-ship fires capability — Naval Strike Missile (the modern NSM, developed by Norwegian Kongsberg, in service with multiple navies and now ground-launched in the Marine application), carried on the ROGUE-Fires unmanned JLTV-derivative launcher. Each ROGUE-Fires carries two NSMs; an MLR fields multiple ROGUE-Fires launchers organized into Coastal Defense Cruise Missile (CDCM) batteries. The system gives the MLR ground-launched anti-ship strike against adversary surface ships, operationalizing the Force Design 2030 sea-denial concept. NMESIS operational employment with the MLR has been one of the most visible aspects of Force Design 2030 implementation.

The US Coast Guard largest white-hull cutter class (Bertholf-class, WMSL Maritime Security Cutter Large hull symbol, beginning WMSL-750 USCGC Bertholf) — 11 hulls planned, replacing the legacy Hamilton-class WHEC High Endurance Cutters — built by Huntington Ingalls Ingalls Shipbuilding (Pascagoula MS) — provides extended-range high-endurance Coast Guard operational capability for offshore patrol, drug and migrant interdiction, fisheries enforcement, and forward-deployed operations.

"The NSC Bertholf-class WMSL — 11 ships, replaces legacy WHEC Hamilton-class."

NSC is the Coast Guard's largest white-hull cutter — the Bertholf-class, hull symbol WMSL (Maritime Security Cutter Large), 11 hulls planned beginning with WMSL-750 USCGC Bertholf commissioned 2008. The class replaces the legacy Hamilton-class WHEC High Endurance Cutters that the Coast Guard operated from the late 1960s through the 2010s. Built by HII Ingalls Shipbuilding at Pascagoula, Mississippi (the same yard that builds Burke-class destroyers and amphibious ships), each NSC is approximately 418 feet long, displaces around 4,500 tons, and has the endurance for extended offshore patrols including Bering Sea fisheries, Caribbean counter-narcotics, and forward-deployed Indo-Pacific presence missions. NSCs are the Coast Guard cutters most likely to be operating alongside Navy ships in joint operations — they carry the SPS-79 surface-search radar, a 57mm Bofors gun, the Mk 38 25mm auxiliary mount, and embark MH-65 Dolphin helicopters.

A US Air Force Research Laboratory experimental navigation satellite in geosynchronous orbit (launched 2023), testing next-generation PNT (positioning, navigation, and timing) capabilities including programmable signals, improved jamming resistance, and alternative-PNT concepts that don't depend on the legacy GPS constellation architecture — providing technology demonstration for the future of military PNT beyond the GPS-only model.

"The AFRL experimental PNT satellite — testing alternative-PNT concepts."

NTS-3 is the technology-demonstration satellite that's testing what comes after the legacy GPS-only PNT model — programmable signals (a satellite that can adapt its broadcast based on threat conditions), improved jamming resistance, and concepts for diversified PNT that don't put all the eggs in the medium-Earth-orbit GPS basket. Launched in 2023, the satellite is in geosynchronous orbit and is feeding data to the broader USSF/AFRL PNT-resilience effort. The future of military PNT is likely to include GPS plus a complementary mix of regional, alt-PNT, and resilient-PNT concepts that NTS-3 helps prove out.

The umbrella term for US military image-intensification optical devices that amplify ambient light (starlight, moonlight, residual artificial light) to enable vision in low-light and no-light conditions — encompassing monocular and binocular configurations, helmet-mounted and handheld variants, and successive technology generations from Gen II through Gen III and current-generation white-phosphor and binocular fused systems.

"Umbrella term for image-intensification night vision — PVS-14, ENVG-B, all of it."

NVG is the catch-all for image-intensification night vision — every PVS-14, PVS-7, PVS-15, ENVG-B, panoramic four-tube, and white-phosphor variant the joint force has ever fielded. The technology amplifies ambient light into the visible spectrum; under starlight and moonlight it works very well, under heavy overcast it works less well, and under zero ambient it requires IR illumination (which the PEQ-15 laser provides). The shift from green-phosphor to white-phosphor in modern units is the most recent generational change; the shift from monocular to binocular (ENVG-B, dual-tube SOF systems) gives depth perception that monocular NVG can't. The fundamental principle is the same across forty years of generational improvement, and "NVG" as a term covers all of it.

The US Navy's current ballistic-missile submarine class, comprising 14 SSBNs (out of 18 originally built; 4 converted to SSGN guided-missile configuration in the early 2000s), each carrying 20 Trident II D5 SLBM tubes (reduced from 24 under New START) — the sea-based leg of the US nuclear triad since the 1980s, being replaced by the Columbia-class SSBN beginning in the 2030s.

"The current Navy SSBN class — 14 boats, 20 Trident D5 tubes each."

Ohio-class is the SSBN class that has been the sea leg of the US nuclear triad for four decades — 14 active SSBN hulls each carrying 20 Trident II D5 SLBM tubes (the count was reduced from 24 under New START treaty limits). Four of the original 18 Ohio-class hulls were converted in the early 2000s to SSGN (Guided Missile Submarine) configuration, carrying conventional Tomahawk and SOF capabilities rather than nuclear missiles. The SSBN force operates from Naval Submarine Base Kings Bay (Georgia, Atlantic SSBNs) and Naval Base Kitsap-Bangor (Washington, Pacific SSBNs). The Columbia-class is the planned successor; both classes will overlap in service for many years during the transition.

The US Coast Guard mid-size cutter class under construction (Heritage-class, WMSM Maritime Security Cutter Medium hull symbol) — designed to replace the legacy Reliance-class and Famous-class medium endurance cutters (WMECs) — 25 hulls planned, initially with Eastern Shipbuilding Group (Stage 1) and subsequently with Austal USA (Stage 2) following program disruption — the largest by-hull-count Coast Guard recapitalization program of the 2020s.

"The OPC Heritage-class WMSM — replaces legacy WMECs, 25 hulls planned."

OPC is the mid-size cutter class the Coast Guard is building to replace its legacy WMECs (Reliance-class and Famous-class medium endurance cutters) — 25 hulls planned, hull symbol WMSM Maritime Security Cutter Medium, lead ship USCGC Argus the planned designation. The program has been politically and operationally contested — Stage 1 was awarded to Eastern Shipbuilding Group in Panama City, Florida, but Hurricane Michael damage and program-execution challenges led to restructuring; Stage 2 (hulls beyond the initial four) was competed and awarded to Austal USA (the same Alabama yard that built the Independence-class LCS). The OPC is the principal cutter recapitalization the Coast Guard depends on to maintain its medium-endurance capacity through the 2030s and beyond as legacy WMECs retire — slow OPC deliveries directly translate to a cutter capacity gap that operational commanders feel every patrol cycle.

A Japanese-developed four-engine maritime patrol aircraft built by Kawasaki Heavy Industries — operated by the Japan Maritime Self-Defense Force as the successor to the P-3C Orion — first flight 2007, entered operational service 2013 — equipped with the HPS-106 active electronically scanned array radar, magnetic anomaly detection, sonobuoys, and acoustic processing for the anti-submarine warfare mission, plus anti-ship missiles and search-and-rescue capability.

"P-1 — JMSDF Kawasaki-built MPA, P-3 replacement, four-engine jet."

The P-1 is one of the more distinctive maritime patrol aircraft programs — a Japanese-developed Kawasaki-built four-engine jet (unusual in an era when most maritime patrol aircraft are twin-engine turboprop or twin-engine jet — the P-1 retained four engines for redundancy and low-altitude performance) that replaced the JMSDF P-3C Orion fleet. The aircraft is purpose-built for the JMSDF ASW mission, with the HPS-106 AESA radar, MAD boom, and acoustic processing tailored for the operating environment around the Japanese archipelago. For US Navy P-8 Poseidon operators, the JMSDF P-1 is the closest partner-nation maritime patrol aircraft — same mission set, different airframe philosophy, with a sustained tactical and technical exchange relationship.

The Royal Australian Air Force variant of the Boeing P-8A Poseidon maritime patrol aircraft — 12-aircraft programme — operated by No. 11 Squadron at RAAF Edinburgh in South Australia — provides the RAAF with long-range maritime patrol, anti-submarine warfare, anti-surface warfare, and intelligence-surveillance-reconnaissance capability — replaced the AP-3C Orion fleet that the RAAF previously operated for decades in the maritime patrol role.

"P-8A AU — RAAF maritime patrol aircraft, 12 aircraft, No. 11 Squadron Edinburgh."

The RAAF P-8A Poseidon force is 12 aircraft operated by No. 11 Squadron at RAAF Edinburgh in South Australia — the replacement for the AP-3C Orion fleet that the RAAF operated for decades. The P-8A provides long-range maritime patrol, anti-submarine warfare, anti-surface warfare, and broader intelligence-surveillance-reconnaissance capability across the vast maritime approaches Australia is responsible for. For a US Navy P-8A community (VP and VPU squadrons), the RAAF P-8A fleet is one of the closest international partners — identical airframe, common tactical doctrine, and continuous combined operations across the Indo-Pacific (including the South China Sea freedom-of-navigation context and the broader maritime-domain-awareness mission). The RAAF and US Navy P-8A communities exchange aircrew, intelligence products, and tactical lessons routinely.

The US joint-force soldier protective ensemble fielded from approximately 1983 onward, comprising the PASGT helmet (aramid-shell ballistic helmet, often colloquially called the "Kevlar helmet") and the PASGT vest (soft aramid fragmentation vest) — replaced in Army service by the Advanced Combat Helmet (ACH) and the Interceptor Body Armor (IBA) starting in the early 2000s, and in Marine service by successor systems.

"The legacy "Kevlar" helmet and flak vest system — replaced by ACH and IBA."

PASGT is the system every Veteran from the 1980s and 1990s wore — the dome-shaped Kevlar helmet (universally called "the Kevlar") and the soft-aramid PASGT flak vest, fielded from about 1983 onward across the joint force. It's the helmet in every photo from Just Cause, Desert Storm, Somalia, and Bosnia; the silhouette is unmistakable. The PASGT helmet was replaced by the MICH/ACH transition starting in the early 2000s, and the PASGT vest was replaced by IBA. The replacement was overdue — the PASGT helmet didn't have the rail mounts modern NVGs and accessories need, and the soft-only flak vest was not rifle-rated. A Veteran who came up under PASGT and saw the ACH transition has a particular generational marker in their service.

The US joint electronics type designator series for rifle-mounted laser aiming and illuminator devices, including visible-spectrum aiming lasers, infrared aiming lasers (visible only through night-vision devices), and infrared illuminators that flood the scene with IR light for NVG visibility — the AN/PEQ-15 (ATPIAL) being the most widely fielded variant across the joint force.

"Umbrella for rifle-mounted IR/visible laser aiming and illuminator devices."

PEQ is the joint-electronics designator series for the rifle-mounted laser boxes — visible aiming lasers, infrared aiming lasers (which only the NVG-equipped shooter and their NVG-equipped team can see), and IR illuminators that wash the scene in IR light when ambient is too low for image intensification to work alone. The AN/PEQ-15 (called the ATPIAL — Advanced Target Pointer / Illuminator / Aiming Laser) is the device most service members actually run on their rifle. The PEQ laser is what makes night-fighting work — the IR aimer projects a beam only the NVG-wearing friendlies can see, the IR illuminator opens up the dark side of the building, and the rifle stays in the same shoulder-pocket whether it's noon or midnight.

The US joint-service rifle-mounted laser aiming and illuminator device, providing a co-aligned visible aiming laser, infrared aiming laser, and infrared illuminator in a single rail-mounted package — fielded broadly across the Army, Marine Corps, Air Force, Navy, and SOF from the mid-2000s onward — the most widely fielded laser aiming module in the joint force inventory.

"The ATPIAL — most-fielded rifle laser, IR aimer plus IR illuminator plus visible laser."

PEQ-15 is the box on the rifle that does the actual night work — co-aligned visible laser, IR laser, and IR illuminator in a single rail-mounted device. The shooter at night puts the IR dot on the target, the NVG sees the dot and the target, the rifle goes where the dot goes. The IR illuminator is the "headlight" that opens up the scene when ambient is too dark for the NVG alone. PEQ-15 is on essentially every infantry rifle in the joint force; it's the device that makes "we own the night" actually work at the squad level. Zeroing the PEQ-15 (both visible and IR) is a recurring training event because the laser drifts off zero faster than the iron sights or the optic; a PEQ-15 that's out of zero is a rifle that's out of zero for the night fight.

A US Navy (and joint and allied) shipboard close-in weapon system, the Mk 15 family in multiple Block variants, comprising a 20mm Vulcan rotary cannon with integrated radar and fire control, providing terminal defense against anti-ship missiles, low-flying aircraft, and small surface threats — the iconic "R2-D2 on the deck" shipboard close-in defense.

"The 20mm Vulcan close-in weapon system — terminal shipboard defense."

Phalanx is the close-in weapon system on US Navy and allied warships — the white-domed gun mount with the 20mm Vulcan that you see on virtually every Navy combatant. The system's job is terminal defense: when an anti-ship missile has gotten through the longer-range layers, Phalanx is the last engagement opportunity, firing a wall of tungsten or DU rounds at the incoming threat with internal radar guidance. The Land-Based Phalanx Weapon System (LPWS) used in C-RAM is the same gun in a different mount. The system has been in service since 1980 with continuous modernization; it remains a credible last-ditch defense and is also one of the visual hallmarks of a US Navy combatant.

The US Army heavy palletized cargo handling system (PLS), Oshkosh prime, providing automated loading and unloading of cargo flatracks at unit level without crane support — comprising the M1074/M1075 truck (10-wheel HEMTT chassis derivative) and M1076 trailer, with the load-handling unit (LHU) on the truck enabling self-loading of 16-foot flatracks carrying up to 16 tons of cargo each.

"The PLS — palletized load system, self-loading 16-ton flatracks without crane."

PLS is the palletized cargo handling system that lets units load and unload heavy cargo without crane support — the M1074/M1075 truck (10-wheel HEMTT-derivative chassis) carries the Load Handling Unit (LHU) that picks up, swings, and places 16-foot flatracks carrying up to 16 tons of cargo each. The M1076 trailer carries a second flatrack. The system replaced the legacy M127 12-ton stake-and-platform semitrailers; the productivity gain in unit-level cargo movement is enormous because PLS-equipped units don't need cranes or forklifts for flatrack handling. Class V (ammunition), Class IX (repair parts), and many other classes of supply move on PLS flatracks across the joint force. The system is one of the most operationally significant innovations in Army logistics of the post-Cold War era.

The US Navy maritime patrol and anti-submarine warfare aircraft (P-8A Poseidon), Boeing prime, derived from the 737-800 commercial airliner with the addition of a weapons bay, MAD boom (in some variants), sonobuoy launchers, anti-submarine torpedo carriage, Harpoon anti-ship missile carriage, and the AN/APY-10 maritime radar — replacing the legacy P-3C Orion across the US Navy and allied operator inventories (UK RAF, Australia, India, Norway, Germany, New Zealand, Korea, Canada).

"The Navy maritime patrol aircraft — Boeing 737 derivative, replaced P-3 Orion."

P-8A Poseidon is the maritime patrol aircraft the Navy and increasing numbers of allies operate — a Boeing 737-800 derivative with the weapons, sensors, and persistence to do the maritime ISR, anti-submarine warfare, and anti-surface warfare missions across long sorties from major air bases. The aircraft replaced the legacy P-3C Orion in US Navy service and across multiple allied operators (UK, Australia, India, Norway, Germany, New Zealand, Korea, Canada among others). The Triton MQ-4C UAS pairs with P-8A for combined manned-unmanned maritime patrol coverage. The aircraft's commercial-airliner-derived basis gives it considerable cabin volume for operators, communications equipment, and mission systems that the older purpose-built P-3 didn't have.

A US AeroVironment Group 2 small unmanned aircraft system, hand-launched, weighing approximately 14 pounds, with electro-optical and infrared cameras, providing longer-range and longer-endurance ISR than Raven (out to ~20 km, endurance 2-2.5 hours) — fielded across the joint force and operated by allied nations as the next-tier hand-launched platform above Raven.

"The bigger hand-launched UAS — Group 2, longer range than Raven."

Puma is what you carry when Raven isn't enough — a Group 2 hand-launched UAS with longer range, longer endurance, and better sensor performance than Raven. The "All Environment" variant adds the ability to land on water, which matters for naval and amphibious applications. Puma fills the platoon/company organic ISR role where Raven's 60-minute endurance and modest range fall short. The platform is still hand-launched (no runway required) but heavier and slightly more involved to operate. Multiple battalions and brigades operate Puma alongside their Raven inventory.

A tracked infantry fighting vehicle developed by the Projekt System & Management GmbH (a Rheinmetall / KNDS joint venture) for the Heer — replacing the long-serving Marder infantry fighting vehicle — in operational service since 2015 — armed with the 30mm MK30-2/ABM automatic cannon, the Spike LR anti-tank missile, and supporting weapons — designed for high protection levels with modular armor configurations adjustable to mission requirements.

"Puma IFV — German tracked IFV (Rheinmetall/KNDS), Heer since 2015, replaces Marder, 30mm MK30-2/ABM."

The Puma is the Heer's infantry fighting vehicle — a tracked IFV that has been replacing the long-serving Marder (the original Heer IFV from the early 1970s) since operational service began in 2015. Armed with the 30mm MK30-2/ABM automatic cannon and the Spike LR anti-tank missile, with a modular armor design that allows protection level adjustment between transport and combat configurations. For a US Army armor partner, the Puma is the closest German counterpart to the M2 Bradley in the IFV role — comparable mission, comparable era, similar institutional centrality to the mechanized force. The platform had a turbulent development and early-fielding history (with serviceability and reliability issues that generated significant Bundestag scrutiny in 2022-2023) but is now in mature operational service. The German VJTF rotation that took the Puma forward to NATO's eastern flank gave the platform a high-visibility role in the Zeitenwende-era posture.

A US military single-tube monocular image-intensification night vision device, helmet-mountable or handheld, fielded across all services and across SOF and conventional formations from the late 1990s onward — the most widely fielded NVG in the joint force, with successive image-intensifier tube generations (Gen III, autogated, white-phosphor) available across the fielding history.

"The most-fielded NVG in the joint force — single-tube monocular."

PVS-14 is the NVG most service members actually wear — a single-tube monocular that mounts to the helmet on a J-arm and a Wilcox or Norotos shroud, or runs handheld for observation. Fielding is broad: Army, Marines, Air Force, Navy, conventional and SOF, training and combat. The monocular design preserves the dark-adapted eye in the uncovered side, which has tactical advantages and disadvantages (depth perception is degraded, but the unaided eye recovers quickly). Successive tube generations have improved the device significantly across its life — current-issue white-phosphor PVS-14 looks meaningfully better than a 2005-issue green-phosphor unit even though the outside of the device looks the same. Every NVG-equipped service member knows the PVS-14 specifically.

A US military single-tube binocular image-intensification night vision device, with one image-intensifier tube and a split-image binocular eyepiece arrangement — fielded across the joint force from the late 1980s onward as the primary helmet-mounted NVG, largely replaced in active operational use by the PVS-14 and successor devices but retained extensively in training, reserve, and legacy inventory.

"The legacy single-tube binocular NVG — replaced by PVS-14 in most front-line use."

PVS-7 is the NVG most Veterans of the 1990s and 2000s wore — single image-intensifier tube split through a binocular eyepiece to feed both eyes, helmet-mounted, fielded from the late 1980s as the joint-force standard. The PVS-14 monocular largely replaced PVS-7 in front-line use because the monocular preserves the dark-adapted eye and is lighter on the helmet, but PVS-7 stuck around extensively in training and reserve inventory — initial-entry training, ROTC, and reserve-component units still issue PVS-7 in many places. The split-tube binocular feel is distinctly different from the PVS-14 monocular feel; Veterans who came up on PVS-7 sometimes prefer it for the binocular sight picture even though the technology is older.

The principal multi-role combat aircraft of the Armée de l'Air et de l'Espace and the Aéronautique navale — designed by Dassault Aviation, in operational service since the early 2000s — variants include Rafale C (single-seat air force), Rafale B (twin-seat air force), and Rafale M (single-seat naval, carrier-capable for Charles de Gaulle operations) — has replaced the Mirage 2000 in most air-force roles and the Super Étendard in carrier-strike operations, and serves as the carrier platform for the air-launched ASMP-A nuclear missile in the Forces aériennes stratégiques role.

"Rafale — Dassault multi-role fighter, replacing Mirage 2000 + Super Étendard, ASMP-A nuclear platform."

The Rafale is the principal French combat aircraft — a Dassault-designed multi-role fighter in operational service since the early 2000s, replacing the Mirage 2000 in most air-force roles and the Super Étendard in carrier-strike operations. Variants include the single-seat Rafale C and twin-seat Rafale B for the Armée de l'Air et de l'Espace, and the single-seat Rafale M for the Aéronautique navale (the carrier-capable variant for Charles de Gaulle operations). The aircraft also serves as the carrier platform for the air-launched ASMP-A supersonic nuclear missile in the Forces aériennes stratégiques role — making Rafale the airborne component of the French nuclear deterrent. For a US Air Force or Navy partner, the Rafale is roughly comparable in mission to the F/A-18E/F Super Hornet in the multi-role-with-carrier-capability slot, with significant export success (Egypt, Qatar, India, Greece, Croatia, UAE, Indonesia, Serbia among others).

The US Air Force signals intelligence aircraft (RC-135V/W Rivet Joint), Boeing 707-derived airframe carrying extensive electronic warfare and signals intelligence collection equipment — providing strategic and operational ELINT (electronic intelligence) and COMINT (communications intelligence) collection for joint and combined operations — operated by the 55th Wing at Offutt AFB, Nebraska and also operated by the UK Royal Air Force.

"The Air Force SIGINT aircraft — Rivet Joint, 707 derivative with EW/SIGINT suite."

RC-135 Rivet Joint is the Air Force signals intelligence aircraft — extensive electronic warfare and signals collection equipment on a Boeing 707-derived airframe, providing strategic and operational ELINT/COMINT collection that supports joint and combined operations and the broader intelligence community. The 55th Wing at Offutt AFB, Nebraska operates the US fleet; the UK Royal Air Force operates a smaller fleet of three RC-135W Airseeker aircraft (cooperatively trained and maintained with the US fleet). The aircraft has been heavily tasked across decades of operations, particularly along the periphery of denied airspace (Cold War-era Soviet boundaries, modern Indo-Pacific and European contingencies). Other variants in the RC-135 family include the RC-135S Cobra Ball (missile-launch monitoring) and RC-135U Combat Sent (electronic intelligence).

The US Army program to develop robotic combat vehicles operating in conjunction with manned vehicles — initial categories of RCV-Light (RCV-L, light platforms approximately 10 tons) and RCV-Medium (RCV-M, medium platforms approximately 10-20 tons), with the prior RCV-Heavy (RCV-H) category restructured — designed to provide scouting, fires, and defensive functions in front of or alongside manned combat formations to extend the maneuver formation's capability.

"The Robotic Combat Vehicle program — RCV-L and RCV-M platforms with manned formations."

RCV is the Army's robotic-combat-vehicle program — designed to put autonomous-or-semi-autonomous ground combat vehicles into the maneuver formation alongside manned tanks and IFVs, providing scouting (look ahead of the formation), fires (engage targets without putting humans at risk), and defensive functions (act as a defensive screen). The program has restructured several times — initial RCV-Light, RCV-Medium, and RCV-Heavy categories have been adjusted, with current emphasis on RCV-L and RCV-M. The technical challenge is autonomy at the level required for ground combat (significantly harder than aerial autonomy), networking with manned vehicles, and the doctrinal questions of how robotic vehicles integrate with combined-arms maneuver. The program is one of the more consequential force-design questions of the 2030s.

A US Marine Corps unmanned ground vehicle carrier (Remotely Operated Ground Unit for Expeditionary Fires, "ROGUE-Fires"), derived from the JLTV chassis with the cab removed and the platform configured to carry various missile launchers — currently fielded carrying two Naval Strike Missile launchers as the NMESIS system, with potential carriage of other munitions as the program expands.

"The ROGUE-Fires unmanned JLTV — carries NMESIS NSM launchers (and potentially others)."

ROGUE-Fires is the unmanned-vehicle platform behind NMESIS — JLTV chassis with the cab removed (the vehicle operates without on-board crew, remotely operated or semi-autonomously), configured to carry two Naval Strike Missile launchers. The Marine Corps designed the platform specifically for the MLR's sea-denial fires mission — small enough to operate at expeditionary advanced bases, mobile enough to relocate after firing (avoiding counterbattery fires), and unmanned to reduce the personnel signature in the contested environment. The platform may be expanded to carry other munitions; the ROGUE-Fires acronym is intentionally generic to allow that expansion. ROGUE-Fires plus NSM constitutes the NMESIS system in its current operational form.

A US AeroVironment Group 1 small unmanned aircraft system, hand-launched, weighing approximately 4 pounds, with electro-optical and infrared cameras, providing platoon and squad-level ISR at ranges out to ~10 km and endurance around 60-90 minutes — fielded in massive numbers across the joint force and operated by numerous allied nations as the workhorse small-unit ISR platform.

"The hand-launched small UAS — the most-deployed military drone in US service."

Raven is the small UAS that taught a generation of platoons what organic ISR means — toss it in the air, fly it for an hour, see what's over the next ridge with EO and IR cameras. The system has been around long enough (since the early 2000s) that virtually every deployed unit has used it. Newer Group 1 systems (Black Hornet for the smallest, Puma for the next tier up) supplement it. Raven is what soldiers picture when "small UAS" is mentioned, even though the inventory has grown well beyond just Raven. The platform is rugged enough to survive crashes, simple enough to train, and cheap enough to be expendable.

A US Northrop Grumman Group 5 high-altitude long-endurance unmanned aircraft system operated by the US Air Force, with ranges over 10,000 nautical miles, endurance over 30 hours, and altitude over 60,000 feet — the strategic-level wide-area ISR platform fielded since the early 2000s with continuing modernization and (in some block variants) progressive divestment.

"The strategic high-altitude ISR UAS — wide-area, long-range, long-endurance."

Global Hawk is the strategic ISR UAS — Group 5, high altitude (60,000+ feet, above weather and most threats), endurance over 30 hours, wide-area sensor coverage. The system performs the missions the U-2 has historically done, and the Air Force has been managing the U-2/Global Hawk transition through the 2010s and 2020s with mixed results (variants of Global Hawk have been divested, the U-2 has been kept longer than planned, the eventual successor mix is unclear). Global Hawk is also the basis for the Navy's MQ-4C Triton (next entry). The platform is large (the airframe approaches a regional jet in size) and operates from a small number of strategic locations.

A US Textron Systems Group 3 tactical unmanned aircraft system weighing approximately 460 pounds, catapult-launched and runway-recovered, providing brigade combat team-level organic ISR (EO/IR sensors, signals intelligence packages on some variants) with endurance around 6-9 hours and ranges out to 125 km — the legacy brigade-level UAS being divested in favor of newer systems as the inventory ages.

"The legacy brigade-level UAS — being divested for newer Group 3 systems."

Shadow is the UAS that defined brigade-level organic ISR for two decades — every Brigade Combat Team had a Shadow platoon, the system flew constantly in Iraq and Afghanistan, and the catapult-launch/runway-recovery model became standard. The Army has been divesting Shadow inventory in the 2020s as the platform shows its age and lighter, more modern Group 3 systems (V-BAT, JUMP 20, and others under the FTUAS program) compete for the role. If a Veteran mentions Shadow, they're telling you when they served at the BCT level. The Army's Future Tactical UAS (FTUAS) program is selecting the Shadow successor for the brigade tactical UAS role.

The Westinghouse-designed pressurized-water naval reactor plant installed in Skipjack-class, Permit-class, Sturgeon-class, and early Lafayette/Benjamin Franklin-class SSBN submarines — the dominant US submarine reactor plant of the 1960s and 1970s, refueled multiple times across submarine service lives — fully retired with the retirement of the last Sturgeon-class hulls in the mid-1990s.

"S5W — the legacy submarine PWR plant, Skipjack/Permit/Sturgeon class."

S5W is the legacy submarine reactor plant — the Westinghouse PWR that powered the Skipjack class, the Permit class, the Sturgeon class, and the early Lafayette / Benjamin Franklin SSBNs. It was the workhorse submarine plant of the 1960s and 1970s, refueled multiple times across each hull's service life. The plant is no longer in the operating Fleet (the last Sturgeon-class hulls retired in the mid-1990s and the last S5W-powered SSBNs were retired earlier), but the design lineage and the lessons-learned from S5W shaped every subsequent submarine plant. S5W is the plant a senior chief or retired officer might reference when explaining why a current procedure exists — the program's institutional memory runs back through it.

The General Electric-designed pressurized-water naval reactor plant installed in Los Angeles-class (SSN-688 class) fast-attack submarines — single reactor per submarine — fielded across the 62-hull Los Angeles-class production run from 1976 through 1996, with refuelings during the hulls' service lives — being progressively retired with the Los Angeles-class through the 2020s.

"S6G — the Los Angeles-class SSN reactor plant, GE-designed PWR."

S6G is the reactor plant that powered the largest fast-attack submarine class in US history — the 62 Los Angeles-class hulls built from 1976 through 1996. General Electric-designed PWR, single reactor per submarine, refueled during the hull's service life as required. The plant is retiring with the Los Angeles-class through the 2020s; the SSN-force-size gap that the Los Angeles retirements are creating is one of the principal Navy fleet-structure issues of the decade. The S6G crew experience — the ML, RC, RL, and E division watch organization, the standing four-section duty rotation on the 688s — is the experience that shaped most of the senior submarine community currently serving, and the institutional knowledge transfer from S6G to S9G as Virginia-class became dominant has been a deliberate community focus.

The General Electric-designed pressurized-water naval reactor plant installed in Ohio-class ballistic-missile submarines (SSBN, 14 hulls) and the converted Ohio-class guided-missile submarines (SSGN, 4 hulls) — single reactor per submarine — designed for the Ohio-class extended service life with refuelings during the hulls' service lives — being retired with the Ohio-class as Columbia-class SSBNs enter service through the 2030s.

"S8G — the Ohio-class SSBN/SSGN reactor plant, GE-designed PWR."

S8G is the reactor plant of the Ohio-class — the 14 SSBNs that carry Trident D5 ballistic missiles as the sea leg of the US nuclear triad, plus the 4 SSGNs converted from Ohio hulls in the early 2000s. Single reactor per submarine, designed for the long Ohio-class service life. The crew structure on the SSBNs (the two-crew Blue / Gold rotation that lets the hulls stay at sea while crews rotate ashore for refit) is a distinctive feature of the SSBN community, and the engine-room watch teams under S8G are the operational heart of the strategic deterrent at sea. The plant retires with the Ohio-class as Columbia-class SSBNs enter service through the 2030s, with the new Columbia-class life-of-ship reactor core eliminating mid-life refueling for the new boats.

The Bettis-designed pressurized-water naval reactor plant installed in Virginia-class fast-attack submarines (SSN-774 onward) — single reactor per submarine — featuring a life-of-ship reactor core that requires no mid-life refueling across the submarine's approximately 33-year service life, eliminating the previous Engineered Refueling Overhaul cycle and substantially increasing operational availability across the class.

"S9G — the Virginia-class SSN reactor plant, life-of-ship core, no refueling."

S9G is the Virginia-class reactor plant — Bettis-designed PWR with a feature that fundamentally changes the operational math of submarine deployments: a life-of-ship core that does not require mid-life refueling across the submarine's approximately 33-year service life. Previous SSN plants (S5W, S6G) required Engineered Refueling Overhauls that pulled the submarine out of operational availability for years; S9G eliminates that, and across a 33-year service life, the operational-availability improvement is substantial. Single reactor per submarine, the plant supports both Block I through Block IV Virginia configurations and the larger Block V Virginia with the Virginia Payload Module. The life-of-ship core philosophy is also the design basis for the Columbia-class SSBN reactor and is one of the principal NR design legacies of the 21st century.

The US Navy amphibious transport dock class (LPD-17 USS San Antonio through LPD-28 USS Fort Lauderdale, with Flight II LPD-30+ in production for both LPD and LHA-replacement roles) — providing amphibious lift for Marine Air-Ground Task Force operations including troops, vehicles, helicopter operations, and the Landing Craft Air Cushion (LCAC) in the well deck — built by Huntington Ingalls Industries at Pascagoula, Mississippi.

"The LPD-17 amphibious ship class — Marine lift, well deck, helo ops."

San Antonio-class is the amphibious-transport-dock class the Marine Corps and Navy operate for amphibious operations — large flight deck for helicopter and tiltrotor operations (V-22 Osprey, MH-60 Sea Hawk, CH-53K King Stallion), well deck for LCAC (Landing Craft Air Cushion) operations putting troops and vehicles ashore, and capacity for approximately 700 Marines plus their vehicles and equipment. The Flight II variant (LPD-30 USS Harrisburg onward) is being built with both LPD roles and as the LHA replacement that the LX(R) program had been intended to fulfill. The class is one of three amphibious-ship types (LHA America, LHD Wasp, LPD San Antonio) that make up the amphibious fleet supporting Marine expeditionary operations.

A ceramic-faced composite rifle-threat-rated body armor plate, fielded in front, back, and side configurations to be inserted into the plate pockets of the Interceptor Body Armor (IBA) Outer Tactical Vest or the Improved Outer Tactical Vest (IOTV) — providing protection against rifle-caliber small-arms threats specified in the corresponding NIJ and military threat-level standards.

"The original ceramic rifle-rated body armor plate — front, back, sides."

SAPI is the original ceramic plate — the hard rifle-threat insert that goes in the front, back, and side pockets of the IBA or IOTV. A SAPI plate stops rifle-caliber rounds at the specified threat level; it cracks if you drop it on concrete, it has a service life, and it has to be inspected for fractures because a cracked plate doesn't stop what an intact one does. SAPI was the GWOT-era baseline; ESAPI and XSAPI followed as the threat assessment escalated. Every soldier and Marine who deployed in the body armor era has carried plates — a four-plate set adds substantial weight to the IOTV, which is one of the reasons modern plate carriers tried to slim down everything else. Plates also have to be turned in at CIF; lost plates are accountability events.

The US Space Force constellation of geosynchronous and highly-elliptical-orbit missile warning satellites, providing strategic and theater missile launch detection via infrared sensing of rocket exhaust plumes — comprising GEO satellites SBIRS GEO-1 through GEO-6 (operational over the past 15+ years) and HEO sensor payloads on classified host satellites — being supplemented and partially replaced by the Next-Gen OPIR follow-on program.

"The legacy missile-warning satellite constellation — being replaced by Next-Gen OPIR."

SBIRS is the missile-warning constellation that has been the strategic and theater warning eyes for the joint force for the past 15+ years — infrared sensors in GEO and HEO that detect the heat plume of a rocket launch in seconds and provide cueing for the broader missile-defense and strategic-warning chain. The program has had a complex acquisition history (cost overruns, schedule slips, but ultimately fielded capability) and is being supplemented by the Next-Gen OPIR follow-on system through the 2020s and 2030s. SBIRS will continue to operate alongside Next-Gen OPIR for the foreseeable future as the constellation transitions. NORAD, USSTRATCOM, and USSPACECOM all depend on SBIRS data flows.

A US Insitu (Boeing subsidiary) Group 2 small unmanned aircraft system weighing approximately 50 pounds, catapult-launched and Skyhook-recovered (no runway required), with electro-optical, infrared, and other sensor payload options, providing significantly longer endurance (15-20+ hours) than hand-launched Group 2 systems — fielded across joint and allied naval and ground forces.

"The catapult-launched long-endurance UAS — naval and joint workhorse."

ScanEagle is the Group 2 UAS with the form factor and endurance that justify a small catapult and recovery system — 15+ hour endurance, multiple sensor payload options, runway-independent operation (catapult launch, sky-hook recovery). The system has been operated extensively from naval vessels and ground sites for two decades, including by Navy, Marine Corps, and SOF elements as well as numerous allied operators. The endurance differentiation matters — Raven and Puma give you an hour or two; ScanEagle gives you most of a day. The system is built around the operational reality that some ISR missions are long, slow, and require sustained presence.

A US Navy wet submersible operated by SEAL Delivery Vehicle Teams to insert and recover SEAL operators in clandestine maritime infiltration and exfiltration — the system floods on launch so occupants breathe from rebreathers throughout the transit, providing low-signature submerged delivery from a host platform (historically a Dry Deck Shelter mounted on an SSN or SSGN) to the objective area — operated by SDVT-1 in Pearl Harbor.

"SDV — wet submersible for clandestine SEAL maritime insertion."

The SDV is the wet submersible that the SEAL community uses for the most-sensitive maritime infiltration problems — a flooded mini-sub that the operators ride inside while breathing from rebreathers (Draeger LAR-V or successor), launched from a Dry Deck Shelter mounted on the back of a host SSN or SSGN submarine. The transit is cold, dark, claustrophobic, and long — operators are in the water (not in a dry cabin) for hours at a time, with the navigation, propulsion, and life-support work happening inside the SDV crew's heads. SDV crews are SEALs who underwent additional SDV qualification at SDVT-1 in Pearl Harbor; the Mk 8 Mod 1 SDV is the historical workhorse and the Shallow Water Combat Submersible (a dry-cabin platform) is the more-recent successor for some missions. The slug suffix distinguishes from the SDVOSB acquisition meaning.

The US Navy Cold-War-era fast-attack submarine class, originally planned for 29 hulls but truncated to 3 (USS Seawolf SSN-21, USS Connecticut SSN-22, USS Jimmy Carter SSN-23) due to post-Cold-War defense reductions — significantly larger, faster, and quieter than the Los Angeles-class predecessor — USS Jimmy Carter has unique special-mission capabilities, and the class as a whole serves specialized strategic mission roles in the SSN force.

"The 3-ship Seawolf class — Cold War design, larger and quieter than Los Angeles."

Seawolf-class is the 3-ship SSN class that was originally planned for 29 hulls and was cut to 3 after the Cold War ended — larger, faster, and quieter than the Los Angeles-class it was designed to replace, with 8 large-diameter torpedo tubes and significantly more weapons stowage. The three ships (Seawolf SSN-21, Connecticut SSN-22, Jimmy Carter SSN-23) serve specialized strategic mission roles. USS Jimmy Carter has unique modifications including the Multi-Mission Platform extension that gives it special-operations and intelligence-collection capabilities not present in the other two hulls. The class is small but operationally significant. The Virginia-class SSN replaced Seawolf as the post-Cold-War production class.

The US Army medium-range air defense surveillance radar family — the legacy AN/MPQ-64 Sentinel and the modernized Sentinel A4 — paired with NASAMS, Avenger, and other medium-range air defense systems to provide aircraft, cruise missile, and UAS detection, tracking, and engagement-quality data — currently being fielded across air defense formations in modernized A4 configuration.

"The medium-range air defense radar — NASAMS, Avenger, and c-UAS rely on it."

Sentinel A4 is the modernized version of the AN/MPQ-64 Sentinel radar — the medium-range air defense surveillance and engagement radar that pairs with NASAMS, the legacy Avenger air defense system, and emerging counter-UAS capabilities. The A4 upgrade gives the radar significantly improved capability against low-observable threats, small UAS, and cruise missiles — the categories that legacy radars struggle with. Fielding is ongoing through the 2020s. The radar isn't glamorous on its own — it's a tracked-or-trailer-mounted sensor — but it's the eyes of the medium-range air defense layer.

A US Navy/Raytheon ship-launched (or Aegis Ashore-launched) exo-atmospheric hit-to-kill interceptor, the BMD-capable variant of the Standard Missile family, with multiple Block variants (Block IA, Block IB legacy production; Block IIA the US/Japan cooperative development) — engages medium-range and intermediate-range ballistic missiles in the midcourse phase of flight, with Block IIA having theoretical capability against some ICBM classes.

"The Aegis-launched exo-atmospheric BMD interceptor — SM-3 Block IIA for ICBMs."

SM-3 is the BMD interceptor of the Aegis system — three Block variants currently relevant: Block IA (legacy), Block IB (current production), and Block IIA (the US/Japan cooperative effort, larger and longer-ranged, with theoretical capability against intermediate-range and possibly long-range ballistic missiles). The Block IIA test against a representative ICBM-class target in 2020 demonstrated the technical possibility of Aegis BMD as a layer of homeland defense; whether that capability is operationally relied upon is a policy question rather than purely a technical one. SM-3 is fired from Mk 41 vertical launchers on Aegis ships and from the Aegis Ashore sites.

A US Navy/Raytheon multi-mission ship-launched (or Mk 70 Typhon-launched) missile, providing extended-range air defense, terminal-phase BMD, anti-ship, and (with the Block IB and follow-on variants) anti-cruise-missile and other emerging capabilities — fired from Mk 41 VLS on Aegis ships and the Mk 70 Typhon ground launcher — one of the most flexible missiles in the US naval inventory.

"The Navy's multi-mission missile — air defense, terminal BMD, anti-ship, and more."

SM-6 is the missile the Navy keeps adding missions to — originally an extended-range area-defense missile, then terminal-phase BMD, then anti-ship with a maneuvering depressed-trajectory profile, then (with the larger Block IB) emerging anti-hypersonic and longer-range strike applications. The missile fires from Mk 41 vertical launchers (Aegis ships) and from the Mk 70 Typhon ground launcher (the Army Mid-Range Capability system based on Mk 41 cells on trucks). The flexibility of SM-6 is part of why the Mk 41 / Mk 70 launcher family is operationally significant — one launcher type, many missile options. SM-6 production has been scaling through the 2020s.

A US Space Force S-band ground-based radar facility (at Kwajalein Atoll in the Republic of the Marshall Islands) operated as part of the Space Surveillance Network, capable of tracking very small objects in low and medium Earth orbits — operational since 2020 as a replacement for the legacy VHF Space Surveillance System (the "Space Fence" of the 1960s-2013) with significantly improved capability for small-object detection.

"The Kwajalein S-band space surveillance radar — tracks small objects in LEO."

Space Fence (the current system, operational since 2020) is the radar that gave SSN dramatically improved capability to track small objects — operating at S-band rather than the VHF of the legacy system, located at Kwajalein for the favorable geometry of the equatorial site, and capable of detecting orbital debris and small satellites that were below the threshold of older sensors. The legacy Space Fence (the VHF system that operated 1961-2013) is the historical predecessor — same name, different technology. Kwajalein's role as a strategic test and surveillance site (Reagan Test Site, the legacy ABM and missile-defense testing site, plus Space Fence and other capabilities) makes it one of the more operationally important US facilities most Americans have never heard of.

An Israeli family of anti-tank guided missiles developed by Rafael Advanced Defense Systems — comprises multiple variants across short, medium, long, and extended ranges (Spike-SR, Spike-MR, Spike-LR, Spike-LR2, Spike-ER, Spike-NLOS) — operational with the IDF and exported to over thirty nations including multiple NATO members — features fire-and-forget guidance with optional fiber-optic-link mid-course update for some variants, allowing operator-in-the-loop terminal engagement.

"Spike — Israeli ATGM family from Rafael, fire-and-forget with operator-in-loop variants."

Spike is the Rafael-produced Israeli anti-tank guided missile family — one of the most widely exported ATGM lines globally, in service with over thirty nations including substantial NATO uptake. The variant lineup spans short range (Spike-SR, shoulder-fired), medium and long range (Spike-MR, Spike-LR, Spike-LR2 for infantry and vehicle mounts), extended range (Spike-ER, for helicopter and naval mounts), and non-line-of-sight (Spike-NLOS, with extended range and the fiber-optic-link operator-in-loop capability). The fiber-optic-link variants give the operator real-time imagery from the missile seeker during flight, allowing target reassignment, abort, or terminal-phase target refinement — a distinguishing capability against fire-and-forget systems. For US Army counterparts evaluating ATGM options, Spike has been a recurring reference point; specific US adoption has been limited compared to other allied uptake.

The US Space Force-operated network of ground-based and space-based sensors that detect, track, and catalog Earth-orbiting objects (satellites, debris, rocket bodies) — comprising space-tracking radars (including Space Fence at Kwajalein, the Globus II/III radars, AN/FPS-85 at Eglin AFB), optical telescopes (GEODSS sites worldwide), and space-based sensors (GSSAP, ORS-5 SBSS Block 10 follow-on) — operated by the 18th Space Defense Squadron.

"The radar/optical/space sensor network that tracks orbital objects."

SSN is the sensor network that knows what's in orbit — a global mix of ground-based radars (Space Fence in Kwajalein being the most modern, plus the legacy GLOBUS, AN/FPS-85, and others), GEODSS optical telescopes spread across multiple continents for tracking GEO and high-orbit objects, and space-based sensors (GSSAP and ORS-5/SBSS lineage) that look at other orbits from orbit. The 18th SDS operates the catalog and runs the day-to-day operations; the data flows into the conjunction-warning service (Space-Track.org, the public-facing catalog interface) and into operational space-defense activities. Without SSN, the rest of the space-warfighting enterprise has no eyes.

The US Navy future fast-attack submarine program, planned successor to Virginia-class, with initial production expected to begin in the 2030s — designed for the high-end peer adversary environment with increased payload capacity, quieter signature, and additional capabilities beyond Virginia-class — program design is in early development phases with significant detail still to be defined.

"The Virginia SSN successor — 2030s production, peer-adversary design."

SSN(X) is the future SSN program that will succeed Virginia-class — initial production targeted for the 2030s, with the design being optimized for the high-end peer-adversary environment (specifically the Indo-Pacific theater contingencies with PLA Navy SSN and SSBN engagement). The design is in early development phases with detail still to be defined — payload capacity, signature characteristics, weapons systems, and propulsion are all program decisions in progress. The broader SSN-force-size concern (Los Angeles retirements outpacing Virginia production) makes SSN(X) timing critical. The class will be the Navy's principal fast-attack submarine through the second half of the 21st century once it enters production.

The US Army wheeled 8x8 armored combat vehicle family (Stryker, in numerous variants including ICV, RV, MCV, MGS, NBCRV, CV, MEV, ESV, ATGM, and others), the equipment basis of the Stryker Brigade Combat Team (SBCT) formation, fielded across nine SBCTs with a range of variants for different mission needs — wheels-not-tracks platform with the strategic deployability advantage of road-march mobility.

"The wheeled IFV family — the SBCT formation's basis."

Stryker is the 8x8 wheeled combat vehicle family that defines the Stryker Brigade Combat Team (SBCT) formation — between the heavy ABCT (tracked Abrams and Bradley) and the light IBCT (foot infantry plus HMMWV) in capability and weight class. Variants include the Infantry Carrier Vehicle (ICV), the Mobile Gun System (MGS, retired), the Reconnaissance Vehicle (RV), the Mortar Carrier Vehicle (MCV), the Nuclear Biological Chemical Reconnaissance Vehicle (NBCRV), and many others. The wheels-not-tracks design trades cross-country capability for road-march speed and strategic lift advantages. The SBCT formation is one of the three major US Army BCT types; Stryker is the equipment basis.

The French Navy's new class of nuclear-powered attack submarines — the lead boat FNS Suffren commissioned 2020, with five additional hulls in production replacing the legacy Rubis-class SSNs through the late 2020s and early 2030s — armed with torpedoes, anti-ship missiles, and the MdCN naval cruise missile (the French naval cruise missile, comparable in role to the US Tomahawk) — programme also known by the Barracuda design name during development.

"Suffren-class SSN — Barracuda design, FNS Suffren (2020), 6 hulls replacing legacy Rubis class."

The Suffren-class is the French Navy's new generation of nuclear attack submarines — the Barracuda-design boats that are replacing the legacy Rubis-class SSNs (the small Rubis boats that had been in service since the 1980s and were significantly smaller than US or UK attack submarines). The lead boat FNS Suffren commissioned 2020, with five additional hulls in production through the late 2020s and early 2030s. The class is armed with torpedoes, anti-ship missiles, and the MdCN (Missile de Croisière Naval) naval cruise missile — the French analogue to the US Tomahawk for long-range strike from the submarine launch platform. For a US Navy partner, the Suffren-class is the closest French counterpart to the Virginia-class — different scale (smaller crew, smaller boat overall) but with comparable mission capability across the full SSN role set.

The US Navy carrier-based multi-role fighter (F/A-18E single-seat and F/A-18F two-seat), Boeing prime, the principal carrier-borne strike-fighter through the past two decades — fielded since 1999 with continuous modernization across Block I, Block II, and the Block III modernization providing improved range, sensors, and networking — operating alongside F-35C on Nimitz-class and Ford-class carrier decks.

"The Navy Super Hornet — Block III current production, alongside F-35C on carriers."

F/A-18E/F Super Hornet is the carrier-based strike-fighter the Navy has flown across the past two decades — larger and significantly improved over the legacy F/A-18C/D Hornet it replaced, with the Block II providing AESA radar and the Block III adding range, infrared search and track, and advanced cockpit displays. The Australian Royal Australian Air Force is the other principal Super Hornet operator. The aircraft operates alongside F-35C in carrier air wings (CAW), with Super Hornet doing the bulk of conventional strike and F-35C providing the day-one stealth penetrating capability. Production continues for Navy and FMS customers, though the aircraft will eventually be replaced by future carrier-based platforms (F/A-XX is the program of record for the F/A-18E/F successor).

A twin-engine jet trainer aircraft based on the Beechjet 400 business jet — operated by the US Air Force since 1992 for Phase III advanced training in the heavy/mobility track of UPT (tanker, airlift, and other multi-engine destinations) and for Combat Systems Officer (CSO) training — currently in a planned retirement under Air Force programmatic decisions, with the heavy/mobility track restructuring around the broader UPT 2.5 changes.

"T-1 Jayhawk — heavy/mobility track UPT trainer, jet, planned for retirement."

The T-1 is the trainer that takes UPT students bound for tankers, airlifters, and other heavy or multi-engine cockpits through their Phase III advanced training — side-by-side seating, a multi-crew cockpit environment, and the airline-style operations that mirror the mobility world. Students on the heavy/mobility track fly T-1s after their T-6 primary phase, learning instrument approaches, formation, low-level navigation, and the crew-coordination workflow they'll see again at the FTU. The Air Force announced plans for the T-1 to retire, with the heavy/mobility track to consolidate into the broader UPT 2.5 redesign — the exact transition timeline has shifted with successive budget cycles, but the long-term direction is clear. The T-1 also serves as a CSO training platform. For the heavy-community pilots who flew it, the T-1 is the bridge between the T-6 and the operational airframe.

A twin-engine jet primary trainer aircraft built by Cessna — operated by the US Air Force from the late 1950s until its retirement in 2009 — replaced in the primary trainer role by the T-6A Texan II under the Joint Primary Aircraft Training System (JPATS) program — known throughout its service life for its distinctive high-pitched engine whine that gave rise to the nickname "Tweet" (sometimes expanded to "6,000-pound dog whistle").

"T-37 Tweet — legacy USAF primary jet trainer, retired 2009, replaced by T-6."

The T-37 is the airplane older USAF pilots learned to fly in — a side-by-side twin-jet primary trainer that served from the late Eisenhower years through 2009, when it was retired and replaced by the T-6A Texan II under the JPATS program. The "Tweet" nickname came from the engine whine, audible across an airfield as the airplane taxied or did the run-up — earning the affectionate-but-honest label "6,000-pound dog whistle" among generations of UPT students. Pilots who flew the T-37 generally describe it as a forgiving trainer for primary phase, with characteristics that built basic stick-and-rudder skills before the student transitioned to the T-38 or moved to the older multi-engine track. The retirement of the Tweet marked the end of the all-jet UPT structure on the primary end — the T-6 turboprop replaced it. Most active USAF pilots today have never flown a T-37; it's a heritage-aircraft conversation.

A twin-engine supersonic jet trainer aircraft built by Northrop — entered service in 1961, with the T-38C variant flown today after multiple avionics upgrades — operated by the US Air Force for Phase III advanced training in the fighter/bomber track of UPT and SUPT, for Introduction to Fighter Fundamentals (IFF), and as a companion trainer for bomber and other communities — being progressively replaced by the T-7A Red Hawk under the Advanced Pilot Training program.

"T-38 Talon — supersonic advanced jet trainer, fighter/bomber track and IFF."

The T-38 is the airplane that has carried Air Force fighter pilots from training to the flight line for more than 60 years — a tandem-cockpit supersonic trainer that puts students into a fast jet for the first time, with the workload, the pace, and the formation discipline that the operational fighter world expects. Fighter/bomber-track UPT students fly T-38s in Phase III; ENJJPT runs everyone through T-38s; Introduction to Fighter Fundamentals (IFF) is on T-38s; the bomber community keeps a T-38 companion-trainer presence. The aircraft is old — engines, ejection seats, and avionics have been recapitalized but the basic airframe still dates to the Kennedy administration — and the long-running T-X / Advanced Pilot Training program selected the Boeing T-7A Red Hawk to replace it. Flying the T-38 is a particular kind of bittersweet for the late generation of pilots who trained on it.

A twin-engine turboprop multi-engine trainer aircraft based on the Beechcraft King Air — operated by the US Navy and US Marine Corps at NAS Corpus Christi, Texas (Training Air Wing FOUR) — used for the multi-engine advanced phase of Navy and USMC primary-and-intermediate aviation training, producing pilots destined for the P-8, E-6, C-130, and other multi-engine fleet aircraft.

"T-44 Pegasus — Navy/USMC multi-engine trainer at NAS Corpus Christi."

The T-44 is the multi-engine advanced trainer for Navy and Marine Corps aviators headed to fleet multi-engine cockpits — the P-8 Poseidon community, the E-6 Mercury, the C-130 community, and the supporting fleet logistics aircraft. Students who select multi-engine at the end of Navy primary go from the T-6B to the T-44C at NAS Corpus Christi, where Training Air Wing FOUR runs the syllabus. The T-44C is a militarized King Air with mission avionics and the syllabus focuses on the multi-crew procedures, instrument flying, and overwater navigation that the fleet multi-engine world demands. Pinning Wings of Gold happens at Corpus for the multi-engine track. The Pegasus name is rarely used in casual conversation — Navy and USMC aviators call the airframe by its type designation more often than its proper name.

A single-engine carrier-capable jet trainer aircraft based on the British Aerospace Hawk and modified for US Navy training requirements (including a strengthened airframe and arresting hook for carrier qualification) — operated by the US Navy and US Marine Corps at NAS Kingsville, Texas and NAS Meridian, Mississippi — used for advanced jet training of strike and strike-fighter selects, including carrier qualification on the training carrier.

"T-45 Goshawk — Navy/USMC advanced jet trainer, carrier qual, Kingsville and Meridian."

The T-45 is the Navy and Marine Corps advanced jet trainer — Training Air Wings ONE (Meridian MS) and TWO (Kingsville TX) run the syllabus, and the airframe is where strike and strike-fighter selects do the carrier qualification that precedes the fleet replacement squadron. The Goshawk is a modified BAE Hawk with the heavier airframe and arresting hook needed for the cat-and-trap routine on a training carrier (CVN deployed for student carrier qualifications). The aircraft has had its share of physiological-episode investigations — the OBOGS system has been an ongoing engineering and operational focus. Students at Meridian and Kingsville log significant time at the field landing practice pattern before they head to the boat for their day-and-night CQ requirements. Wings of Gold come at the end of the syllabus for jet students who complete carrier qualification.

A single-engine turboprop primary trainer aircraft built by Beechcraft (now Textron Aviation) — selected under the Joint Primary Aircraft Training System (JPATS) program in 1995 to replace the Air Force T-37 Tweet and the Navy T-34C Turbomentor — operated by USAF (T-6A) for Phase II primary training across UPT bases and by Navy/USMC (T-6B) for primary aviation training at NAS Whiting Field and NAS Corpus Christi.

"T-6 Texan II — primary trainer, single-engine turboprop, USAF and Navy."

The T-6 is the airplane every USAF and Navy aspiring pilot first solos in — a single-engine turboprop with a glass cockpit that simulates the workload of a faster jet, side-by-side ejection seats, and enough performance (pressurized cabin, ~280 KTAS, aerobatic envelope) to give a student a real introduction to flying military aircraft. The USAF flies the T-6A out of Columbus, Laughlin, Sheppard, and Vance for UPT Phase II; the Navy and Marine Corps fly the T-6B out of NAS Whiting Field and NAS Corpus Christi for primary aviation training. The aircraft is loud, the OBOGS oxygen system has been the subject of long-running physiological-episode investigations, and the syllabus extracts every minute of training value out of every hop. Solos in the T-6 — first contact solo, area solo, formation solo — are among the most-remembered events of any military pilot's career.

The US Air Force advanced jet trainer (T-7A Red Hawk), Boeing-Saab prime, designed to replace the legacy T-38 Talon as the advanced trainer for student fighter pilots transitioning to fifth-generation fighters and bombers — first US Air Force delivery 2023 with continuing flight test and initial operational capability targets through the late 2020s — the program has had typical first-of-class development challenges including escape-system testing issues.

"The T-38 successor — Boeing-Saab Red Hawk, advanced pilot trainer."

T-7A Red Hawk is the advanced jet trainer replacing the legacy T-38 Talon that has trained Air Force pilots for over six decades — Boeing-Saab development, twin-tail layout, modern cockpit and flight-control systems designed for transitioning students into F-22, F-35, and B-21. The program has had typical first-of-class development challenges, including escape-system testing issues that pushed back initial operational capability, but is now moving toward fielding through the late 2020s. The aircraft also has substantial export potential as the trainer replacement for legacy T-38 operators worldwide and as a competitor in advanced-trainer markets generally. Training pipeline (UPT, IFF, FTU) transition to T-7A will reshape the early-career trajectory of joint Air Force pilots.

The US Navy Military Sealift Command dry cargo and ammunition replenishment ship class (T-AKE Lewis and Clark-class), 14 ships in service, providing dry stores and ammunition replenishment to deployed Navy combatants — operated by civilian mariners under MSC, the ships are the workhorse dry-cargo replenishment platform of the Combat Logistics Force.

"The MSC dry cargo / ammo replenishment ship class — 14 ships, civilian-crewed."

T-AKE Lewis and Clark-class is the workhorse dry-cargo and ammunition replenishment ship of the Navy's Combat Logistics Force — 14 ships, operated by civilian mariners under Military Sealift Command, providing the ammunition, dry stores, and (some variants) provisions replenishment that keeps deployed Navy combatants supplied. The ships pull alongside a combatant and pass cargo via tensioned lines and helicopter Vertrep operations. The class replaced legacy AE Kilauea-class ammunition ships, AF stores ships, and consolidated dry-cargo replenishment under MSC civilian crewing. The pairing of T-AKE dry cargo with T-AO oilers provides the principal Combat Logistics Force capability sustaining forward-deployed Navy operations.

The US Navy Military Sealift Command fleet replenishment oiler class (T-AO John Lewis-class), providing fuel replenishment to deployed Navy combatants — replacing the legacy Henry J. Kaiser-class T-AO oilers — built by General Dynamics NASSCO (San Diego), with continuing production through the 2020s and 2030s.

"The MSC oiler class — refuels deployed Navy ships, replacing legacy Kaiser-class."

T-AO John Lewis-class is the new oiler class replacing the legacy Henry J. Kaiser-class T-AO oilers — civilian-crewed under Military Sealift Command, providing the fuel replenishment that deployed Navy combatants need (oil-burning ships like Burkes consume tens of thousands of gallons of marine diesel per day under steaming conditions). The ships pull alongside combatants for underway replenishment ("UNREP") and pass fuel through tensioned hoses, often simultaneously with dry cargo from a T-AKE on the other side ("connected replenishment"). The lead ship USS John Lewis (T-AO 205) delivered 2023; production continues at General Dynamics NASSCO in San Diego through the 2020s and 2030s. The combination of T-AO oilers and T-AKE dry-cargo ships is the heart of the Combat Logistics Force.

A US Army Terminal High Altitude Area Defense battery deployed to Seongju County, North Gyeongsang Province, Republic of Korea — initial deployment 2017 — provides theater ballistic missile defense against DPRK short and medium-range ballistic missile threats — operated by US Army air and missile defense forces under USFK, with the radar oriented to detect threats against the Korean Peninsula.

"THAAD Korea — US Army THAAD battery at Seongju since 2017."

THAAD Korea is the US Army THAAD battery deployed to Seongju County in southeastern ROK — initial deployment in 2017, with the radar oriented to detect ballistic missile threats against the Korean Peninsula. The deployment was politically controversial when it was made — both inside Korea (local opposition in Seongju over land-use and electromagnetic concerns) and externally (Chinese government objections to the X-band radar coverage that geometrically extends into Chinese territory, with associated unofficial economic pressure against ROK). The battery is operated by US Army air and missile defense forces under USFK and contributes to the layered missile defense architecture for the peninsula alongside Patriot batteries (US and ROK) and the developing ROK indigenous M-SAM / L-SAM systems. THAAD Korea sits within the broader US ballistic missile defense system and is integrated through the Aegis BMD ships and other regional sensors.

The US Navy guided-missile cruiser class, the largest surface combatants other than carriers in current service, with significantly larger Mk 41 VLS capacity than Burke-class destroyers (122 cells vs 96 on most Burkes) — fielded since 1983, originally 27 hulls built, with progressive retirements through the 2020s reducing the active fleet rapidly as the class ages out — the broader CG modernization debate has shaped fleet structure decisions for years.

"The legacy CG-47 cruiser class — retiring through the 2020s."

Ticonderoga-class is the cruiser class that has been the principal air-defense and command-and-control surface combatant of the Navy for forty years — 122 Mk 41 VLS cells (more than the Burkes' 96), AEGIS combat system (the legacy basis for the AEGIS BMD modernization), and the role as the air-warfare commander platform in carrier strike groups. The fleet is retiring rapidly through the 2020s as the ships reach end of service life; the broader debate about CG replacement, modernization, and the role of the cruiser-class in the fleet has been ongoing for over a decade. The DDG(X) future surface combatant is, in some respects, the long-term CG replacement; the immediate replacement is Flight III Burkes with the SPY-6 radar. Several ships in the class have been the target of congressional preservation efforts as the Navy has sought retirements.

A twin-engine, variable-geometry combat aircraft jointly developed by Germany, the United Kingdom, and Italy through the Panavia consortium, operated by the Luftwaffe in the IDS (Interdiction / Strike) and ECR (Electronic Combat Reconnaissance, for SEAD) variants — entered Luftwaffe service in the early 1980s — carries the NATO nuclear-sharing role as the German dual-capable aircraft for US B61 gravity weapons under the NATO nuclear-sharing arrangements — planned for retirement and replacement by the F-35A in the nuclear-sharing role and by the Eurofighter ECR in the SEAD role.

"Tornado — Panavia IDS/ECR strike + SEAD, Luftwaffe since early 1980s, current NATO nuclear-sharing platform."

The Panavia Tornado is the Luftwaffe's long-serving strike aircraft — a twin-engine, variable-geometry combat aircraft jointly developed by Germany, the United Kingdom, and Italy through the Panavia consortium, in Luftwaffe service since the early 1980s. The Luftwaffe operates the Tornado in two variants: IDS (Interdiction / Strike) for the conventional strike role, and ECR (Electronic Combat Reconnaissance) for the SEAD mission. The operationally significant role for the US-German nuclear-sharing relationship: Tornado IDS is the German dual-capable aircraft (DCA) certified to carry US B61 gravity nuclear weapons under the NATO nuclear-sharing arrangements — Germany is one of five NATO allies (with Belgium, Italy, Netherlands, and Turkey) that hosts US tactical nuclear weapons and provides DCA aircraft. The Tornado is planned for retirement with the F-35A succeeding in the nuclear-sharing role and the Eurofighter ECR succeeding in the SEAD role.

A class of smaller Republic of Korea Navy surface combatants used for patrol, interdiction, and coastal defense missions — including the PKMR (Patrol Killer Medium Rocket) Chamsuri-class follow-on with the Gumdoksuri-class PKG (Patrol Killer Guided missile) ships entering service alongside — provides the lower end of the ROKN surface combatant mix for Yellow Sea NLL patrol, coastal defense, and constabulary missions.

"TPB — ROKN smaller patrol boats for NLL and coastal patrol."

TPB-class designations cover the smaller patrol boats in the ROKN inventory — the workhorse force that handles day-to-day patrol along the NLL in the Yellow Sea, the coastal defense mission, fisheries enforcement, and the constabulary work that doesn't require a destroyer or frigate. The Gumdoksuri-class PKG (Patrol Killer Guided missile) ships armed with anti-ship missiles entered service following the 2002 Second Battle of Yeonpyeong and the recognized need for more capable small combatants. The Chamsuri-class PKM followed by the PKMR (Chamsuri-211 class) provides the lighter end of the patrol force. For ROKN sailors, a TPB assignment along the NLL is the operational tempo end of the service — small crews, regular underway, direct contact with DPRK patrol elements across the disputed line.

The US Navy/Royal Navy submarine-launched ballistic missile (designated UGM-133A Trident II D5), fielded since 1990 and operating from Ohio-class SSBNs (and planned for Columbia-class), with the D5LE life-extension variant providing extended service through the 2040s — carrying W76 and W88 warheads (with the new W93 in development for future SLBM service) — the principal weapon of the US sea-based nuclear deterrent.

"The Navy SLBM on Ohio and (future) Columbia SSBNs — D5LE through the 2040s."

Trident II D5 is the SLBM that has carried the sea-leg of the US nuclear triad since 1990 — three-stage solid-fueled, MIRV capable, accurate enough for hard-target counterforce (a major capability shift from the earlier Trident I C4). The D5LE Life Extension variant provides the path to extended service through the 2040s while Columbia-class enters service and the eventual successor SLBM is developed. The missile carries W76 family warheads (the most common load) and the higher-yield W88; the new W93 is in development for future SLBM service. The UK Royal Navy operates the Trident II D5 on its Vanguard-class (and future Dreadnought-class) SSBNs under the joint Trident program.

The Marina Militare's new amphibious assault ship — laid down 2017, launched 2019, commissioned in the early 2020s — built to operate F-35B Lightning II aircraft alongside the rotary-wing and amphibious-assault complement — gives Italy a second F-35B-capable flat deck alongside ITS Cavour — flagship-class amphibious unit replacing the legacy LPDs of the San Giusto class — based at Taranto.

"ITS Trieste (L 9890) — new Italian LHD, F-35B-capable, second Italian flat deck alongside Cavour, HQ Taranto."

ITS Trieste (L 9890) is the Marina Militare's new amphibious assault ship — a large LHD design that gives Italy a second F-35B-capable flat deck alongside ITS Cavour, and that significantly upgrades the Italian amphibious capability that had previously been built around the smaller San Giusto-class LPDs. Laid down 2017, launched 2019, with commissioning and capability certification rolling through the early 2020s. For a US Navy partner, Trieste is closest in concept to the US America-class LHA (Flight 0) — an amphibious assault ship built around F-35B operations with the amphibious mission set in second priority — and the partnership opportunities for cross-deck operations with US Marine Corps F-35Bs and US Navy F-35B operators are operationally significant. The two-carrier (Cavour + Trieste) F-35B Italian fleet is a substantial European naval-aviation capability that few NATO partners match.

The French Navy's class of four nuclear-powered ballistic missile submarines (Le Triomphant, Le Téméraire, Le Vigilant, Le Terrible) — commissioned 1997-2010 — armed with the M51 submarine-launched ballistic missile (SLBM) carrying TN-75 / TNO thermonuclear warheads — comprises the sea-based component of the French nuclear deterrent (the Force océanique stratégique, FOST), with the standing posture maintaining at least one SSBN at sea on continuous deterrent patrol — homeported at Île Longue, Brittany.

"Triomphant-class SSBN — 4 hulls, M51 SLBM, continuous at-sea deterrent, HQ Île Longue."

The Triomphant-class is the French Navy's ballistic-missile submarine force — four hulls (Le Triomphant, Le Téméraire, Le Vigilant, Le Terrible) commissioned 1997-2010, armed with the M51 SLBM carrying French thermonuclear warheads, comprising the sea-based component of the French nuclear deterrent (the Force océanique stratégique, FOST). The standing posture maintains at least one SSBN at sea on continuous deterrent patrol, with the boats homeported at Île Longue on the Atlantic coast of Brittany. For a US Navy partner, the Triomphant-class is the closest French counterpart to the Ohio-class SSBNs that carry the US sea-based deterrent — much smaller force structure (four boats versus the US fourteen SSBNs) but with the same kind of continuous-deterrent operational tempo and the same institutional weight. The successor class (SNLE 3G, third-generation) is in development for the 2030s.

An Israeli vehicle-mounted hard-kill active protection system developed by Rafael Advanced Defense Systems and Israel Aerospace Industries Elta — operational on IDF Merkava Mk III and Mk IV tanks and Namer heavy IFVs — uses radar to detect incoming anti-tank guided missiles and rocket-propelled grenades, then employs explosively-formed interceptors to defeat the threat before impact — adopted by the US Army for the M1A2 Abrams main battle tank, the first major US adoption of a foreign-developed active protection system.

"Trophy APS — Israeli hard-kill APS, now fielded on US Army Abrams tanks."

Trophy APS is the Israeli vehicle-mounted hard-kill active protection system — developed by Rafael and IAI Elta, operational on IDF Merkava Mk III, Mk IV, and Namer platforms, and one of the most operationally proven APS systems in the world based on documented intercepts of ATGMs and RPGs against Israeli vehicles. The US Army adoption of Trophy for the M1A2 Abrams (initially as an urgent operational need, then institutionalized) is one of the most visible examples of US adoption of Israeli ground combat technology — the first major US adoption of a foreign-developed APS, after years of US APS development programs that did not produce a fielded system. For US Army armor crews now operating Trophy-equipped Abrams, the system is a direct beneficiary of decades of Israeli operational experience that fed Rafael's development program. The procurement relationship demonstrates the US-Israel ground-systems exchange in concrete fielded capability.

The US Air Force high-altitude reconnaissance aircraft (U-2S Dragon Lady), Lockheed Martin prime, in continuous service since 1956 (multiple structural and equipment generations across that span) — operating at altitudes above 70,000 feet to gather strategic and operational signals intelligence, imagery intelligence, and other sensor data — operated by the 9th Reconnaissance Wing at Beale AFB, California with continuing modernization through the 2020s, with retirement targets repeatedly extended.

"The U-2 Dragon Lady — high-altitude ISR, 60+ years of continuous service."

U-2 Dragon Lady is the high-altitude reconnaissance aircraft the Air Force has operated continuously since 1956 — single-pilot, very high altitude (above 70,000 feet), and the strategic ISR platform that has flown more reconnaissance hours than any other US aircraft. Multiple generations of structural and equipment refreshes have kept the type operationally relevant; the current U-2S variant is significantly different from the original U-2A but retains the iconic platform identity. Beale AFB is the operating base. Retirement targets have been set and extended repeatedly — the Air Force has tried multiple times to retire U-2 in favor of RQ-4 Global Hawk (which had its own divestment challenges) — but the U-2 remains operational with modernization continuing. The platform has been at the center of major strategic events from the 1960 Powers shootdown over the USSR to recent operations.

The US Marine Corps twin-engine utility helicopter (UH-1Y Venom), Bell prime, the modernized H-1 program variant derived from the legacy UH-1N Huey with four-blade composite rotors, modernized engines, and improved performance — sharing components with the AH-1Z Viper attack helicopter under the H-1 program — fielded since 2008 across Marine Corps light/medium helicopter squadrons.

"The Marine Corps utility helicopter — UH-1Y Venom, H-1 program with AH-1Z."

UH-1Y Venom is the Marine Corps utility helicopter — the modernized variant of the legacy UH-1N Huey under the H-1 program upgrade, with the four-blade composite rotor system (same as AH-1Z Viper), modernized cockpit and engines, and significantly improved performance over the legacy Huey. The H-1 program shared component commonality with the AH-1Z attack helicopter (approximately 85% common components) — a significant maintenance and logistics advantage for the Marine aviation community. UH-1Y and AH-1Z fly paired sections in the light-attack-utility mix the Marine Aircraft Group structure uses. The Marine Corps is one of the principal operators; the aircraft has FMS interest but smaller export footprint than the larger helicopter families.

The US Army medium utility helicopter family (UH-60 Black Hawk), Sikorsky prime, fielded since 1979 with multiple variants (UH-60A legacy, UH-60L, UH-60M current production), with extensive joint and FMS variants including HH-60 (Air Force CSAR Pave Hawk), MH-60 (Navy Sea Hawk family), and many allied air force variants — the principal US Army utility helicopter and one of the most-produced military helicopters in history.

"The Army medium utility helicopter — UH-60M current production, broad joint variants."

UH-60 Black Hawk is the Army medium utility helicopter that has been the workhorse since 1979 — UH-60A and L variants legacy, UH-60M current production. The aircraft carries 11 troops or a sling load of significant weight, with door-mounted machine guns, the capacity for medical evacuation configurations (with the dedicated HH-60M MEDEVAC variant), and a robust airframe that has been continuously upgraded. The Navy MH-60 Sea Hawk family is a closely-related variant for ASW, surface warfare, and shipboard utility missions. The Air Force HH-60 Pave Hawk is the CSAR variant. FMS variants are operated by allies worldwide. The "Black Hawk" community in Army aviation is among the largest in any aviation community.

The US joint tiltrotor aircraft family (V-22 Osprey), Bell-Boeing prime, with three variants: MV-22B for the US Marine Corps assault and logistics role, CV-22B for the US Air Force Special Operations Command for SOF mobility, and CMV-22B for the US Navy carrier-onboard-delivery role replacing the C-2A Greyhound — the aircraft tilts its proprotors from horizontal (helicopter mode) to vertical (turboprop mode) for short-takeoff-vertical-landing operation with fixed-wing-aircraft cruise speed.

"The V-22 Osprey — Marines MV-22, AFSOC CV-22, Navy CMV-22, tiltrotor."

V-22 Osprey is the tiltrotor — the aircraft that takes off and lands vertically like a helicopter but cruises like a turboprop fixed-wing aircraft (tilts its proprotors from vertical for liftoff to horizontal for forward flight). Three operating variants: MV-22B for the US Marine Corps (the largest operator, replacing the legacy CH-46 Sea Knight), CV-22B for the US Air Force Special Operations Command (SOF mobility, replacing the MH-53J Pave Low III), and CMV-22B for the US Navy (carrier-onboard-delivery, replacing the C-2A Greyhound, beginning to enter service across carrier air wings). The aircraft has had a difficult safety history (multiple fatal accidents across decades of service) that has driven major airworthiness and operational reviews; the most recent grounding (December 2023-March 2024) followed a CV-22 crash off Japan. The program of record continues, with continuing fleet operations after the post-grounding return to flight.

The Royal Canadian Navy's diesel-electric attack submarine force — four boats (HMCS Victoria, Windsor, Corner Brook, and Chicoutimi) — acquired from the United Kingdom in the late 1990s and early 2000s as former Royal Navy Upholder-class submarines that had been laid up by the UK MoD after a brief British service period — based at CFB Halifax in Nova Scotia and CFB Esquimalt in British Columbia — provides Canada's sole submarine capability.

"Victoria-class — RCN diesel-electric submarines (4 boats), former UK Upholder-class, Halifax + Esquimalt."

The Victoria-class are the RCN's diesel-electric attack submarine force — four boats (Victoria, Windsor, Corner Brook, Chicoutimi), acquired from the United Kingdom in the late 1990s and early 2000s as former Royal Navy Upholder-class submarines that the UK had laid up after a brief British service period. The boats are based at CFB Halifax (Atlantic) and CFB Esquimalt (Pacific). The class has had a difficult operational history — the well-publicised 2004 fire aboard HMCS Chicoutimi during the delivery transit being the most visible single incident, and operational availability has been a recurring topic in Canadian defence discussion. The fleet remains Canada's sole submarine capability, and the question of a future submarine class is a recurring strategic discussion in Canadian defence policy. For US Navy submarine partners, the Victoria-class provide the Canadian end of bilateral and Five Eyes submarine cooperation.

The US Navy fast-attack submarine class (Virginia-class SSN, multiple Blocks I through V, with Block V featuring the Virginia Payload Module VPM for additional Tomahawk and Conventional Prompt Strike missile carriage) — fielded since 2004 with continuing production at Electric Boat (Connecticut) and Newport News Shipbuilding (Virginia) — the current SSN class supplementing and progressively replacing the legacy Los Angeles-class.

"The Virginia SSN class — Block V with VPM for additional missile carriage."

Virginia-class is the modern US Navy SSN class — fast-attack submarine designed for the post-Cold-War mission set with significant ISR, special operations, and Tomahawk strike capabilities alongside the traditional anti-submarine and anti-surface warfare roles. The Block I through Block IV variants are the standard Virginia configuration; Block V adds the Virginia Payload Module (VPM), a hull section with four additional large-diameter vertical launch tubes that significantly increase Tomahawk carriage and provide the carriage for the future Conventional Prompt Strike hypersonic weapon. Production at Electric Boat (Connecticut) and Newport News Shipbuilding (Virginia) is the bottleneck on Navy fast-attack submarine numbers; current production is approximately 2 hulls per year, with goals for higher rates contingent on industrial-base investment.

The US Navy/NNSA submarine-launched ballistic missile warhead family (W76, with variants W76-0 legacy, W76-1 Life Extension Program, W76-2 low-yield), carried on the Trident II D5 SLBM — the most numerous warhead type in the US active nuclear stockpile, with the W76-2 low-yield variant fielded since 2019 providing a tactical-yield option for SLBM delivery.

"The Trident D5 warhead family — W76-1 the main LEP, W76-2 the low-yield option."

W76 is the principal Trident II D5 warhead family — fielded since the late 1970s, modernized through the W76-1 Life Extension Program (first production unit 2008, completed by the early 2020s), and supplemented by the low-yield W76-2 variant first fielded in 2019. The W76-2 was a controversial Trump-administration decision (deployed under the 2018 Nuclear Posture Review) to provide a low-yield SLBM option for limited-use scenarios; the Biden administration retained but did not expand it, and the Trump second administration may further address it. The W76 family is numerically the most common nuclear warhead in the US active stockpile.

A US Air Force/NNSA intercontinental ballistic missile warhead (W78), carried on the LGM-30G Minuteman III ICBM — fielded since 1979 and approaching end of service life, with the W87-1 Modification Program providing the W78 replacement on Minuteman III (and Sentinel) ICBMs as production ramps up through the late 2020s and 2030s.

"The legacy MMIII warhead — being replaced by W87-1 modification."

W78 is the Minuteman III warhead that has been in service since 1979 and is now approaching the end of its service life — the W87-1 Modification Program is producing a modernized W87 variant that will replace W78 on Minuteman III (and on Sentinel as that program fields). The W78 retirement and W87-1 production ramp is one of the major NNSA stockpile modernization efforts of the 2020s and 2030s, with associated supply-chain and production-capacity issues at the Pantex assembly facility and the Y-12 uranium processing facility. The transition will take the better part of a decade as Minuteman III silos are progressively re-warheaded.

The US Air Force/NNSA air-launched cruise missile warhead family (W80, with variants W80-0 SLCM-N historical, W80-1 current ALCM, W80-4 LRSO replacement) — the W80-1 is currently carried on the AGM-86 ALCM as the air-launched leg of the nuclear triad; the W80-4 Life Extension Program is producing the modernized variant for LRSO carriage.

"The ALCM warhead family — W80-1 today, W80-4 for LRSO going forward."

W80 is the warhead family for air-launched cruise missiles — W80-1 currently carried on the AGM-86 ALCM on B-52H bombers, and the W80-4 Life Extension Program producing the modernized variant for the LRSO (AGM-181) successor missile. Production timelines for W80-4 must align with LRSO fielding, and NNSA Pantex assembly capacity is one of the bottlenecks in the broader nuclear-modernization schedule. The W80 family's yield is in the low-hundreds-of-kilotons range (specific yields are classified) and is sized for the cruise-missile role rather than the higher-yield strategic ballistic-missile warheads.

A US Air Force/NNSA intercontinental ballistic missile warhead (W87, with current variant W87-0 and the in-development W87-1 Modification Program), originally fielded on Peacekeeper MX and reallocated to Minuteman III after Peacekeeper retirement — currently carried on approximately half the Minuteman III silos and planned to be carried on Sentinel as that program fields.

"The W87 warhead — currently on Minuteman III, replacing W78 in W87-1 modification."

W87 is the warhead originally fielded on Peacekeeper MX and reallocated to Minuteman III when Peacekeeper retired in 2005 — currently carried on approximately half the deployed Minuteman III force. The W87-1 Modification Program is producing a modernized variant that will replace the W78 on the other half of the Minuteman III fleet (and on Sentinel as that program fields). The W87 yield is in the hundreds of kilotons range; the warhead is one of the more modern designs in the active stockpile because of its 1980s development under the Peacekeeper program. NNSA stockpile stewardship of W87 is one of the principal stewardship missions.

A US Navy/NNSA submarine-launched ballistic missile warhead (W88), carried on Trident II D5 SLBMs in conjunction with the more numerous W76 family — provides the high-yield variant of SLBM warheads with yield in the few-hundreds-of-kilotons range, suitable for hard-target counterforce engagement — modernization through the W88 ALT 370 alteration program completed in the early 2020s.

"The higher-yield Trident D5 warhead — hard-target counterforce SLBM option."

W88 is the higher-yield Trident II D5 warhead — fewer in number than the workhorse W76 family but providing the harder-target counterforce capability the more numerous W76s cannot. The yield is in the few-hundreds-of-kilotons range (specific figures classified). The W88 ALT 370 alteration program (a less extensive modernization than a full Life Extension Program) completed in the early 2020s, refreshing components without redesigning the warhead. W88 is one component of the broader Navy strategic-warhead inventory alongside W76-1, W76-2 low-yield, and the in-development W93.

A US Navy/NNSA submarine-launched ballistic missile warhead (W93) in development, designed as a future SLBM warhead to complement W76 and W88 in the Trident II D5 (and follow-on SLBM) inventory — first production unit targeted for the 2030s — paired with the planned Mk7 Aeroshell that will carry W93 into service.

"The new SLBM warhead in development — W93 with Mk7 aeroshell, 2030s fielding."

W93 is the new SLBM warhead in development, the first new-design US nuclear warhead in decades (most modernization has been Life Extension Programs of existing designs). The warhead pairs with the Mk7 Aeroshell — the reentry vehicle that carries it through the atmosphere — and is targeted for first production unit in the 2030s. The program is one of the more consequential nuclear-modernization decisions of the current era because it represents a return to new-design warhead production after a long period of stewardship-only stockpile work. The UK Replacement Warhead program (announced 2020) is being developed in cooperation with W93.

The US Navy legacy amphibious assault ship class (LHD-1 USS Wasp through LHD-8 USS Makin Island), built between 1989 and 2009, similar in role to the America-class but with a full well deck throughout the run and supporting helicopter, AV-8B Harrier II legacy, and F-35B operations — being progressively replaced by America-class as the class ages out through the 2030s.

"The legacy LHD-1 amphib class — replaced by America-class."

Wasp-class is the predecessor LHD amphibious assault ship class to the America-class — 8 hulls built between 1989 and 2009, full well deck for LCAC operations alongside aviation capability for helicopters, AV-8B Harrier II (legacy), and F-35B STOVL (current). The class operated for decades as the principal Navy amphibious flagship type for Marine Expeditionary Units. As America-class enters service, Wasp-class hulls retire on the standard service-life timeline; the transition extends through the 2030s. Eight LHDs plus eight LHAs (Wasp + America combined) plus the LPDs provide the amphibious lift for the Marine Corps expeditionary mission set.

The US Coast Guard legacy hull classification symbol for the High Endurance Cutter class — embodied in the now-retired Hamilton-class 378-foot cutters (WHEC-715 USCGC Hamilton through WHEC-727) commissioned 1967 through 1972 — replaced by the National Security Cutter (NSC) Bertholf-class with the new WMSL hull symbol — the WHEC symbol is effectively retired with the final Hamilton-class disposals through the 2010s.

"The WHEC hull symbol — legacy Hamilton-class, retired and replaced by NSC."

WHEC is the legacy hull-classification symbol for the Hamilton-class High Endurance Cutters the Coast Guard operated as its largest white-hulled cutters from the late 1960s into the 2010s — 378 feet long, WHEC-715 through WHEC-727, the principal Coast Guard cutters for extended offshore patrols across multiple operational generations. Several Hamilton-class hulls were transferred to allied navies (Philippines and Bangladesh among others) on retirement rather than scrapped, where they continue service under new flags. The class is fully retired from US Coast Guard service and the WHEC symbol is effectively retired with it — the replacement is the NSC Bertholf-class with the new WMSL symbol. Hamilton-class crews are the institutional generation senior to most current NSC crews, and the cultural lineage from WHEC to NSC is felt in the service the way it's felt across any cutter recapitalization.

The US Coast Guard hull classification symbol for the Medium Endurance Cutter class category — currently embodied in the legacy Reliance-class (210-foot WMECs, WMEC-615 onward) and the Famous-class (270-foot WMECs, WMEC-901 onward) — being replaced by the Offshore Patrol Cutter (OPC) Heritage-class with WMSM hull symbol — provides the Coast Guard's legacy mid-size offshore patrol cutter capability through the 2020s and into the 2030s as OPC delivery proceeds.

"The WMEC hull symbol — legacy Reliance and Famous-class, being replaced by OPC."

WMEC is the hull-classification symbol for the legacy Medium Endurance Cutter classes the Coast Guard is now retiring — Reliance-class (210-foot, WMEC-615 onward, commissioned starting in the late 1960s) and Famous-class (270-foot, WMEC-901 onward, commissioned through the late 1980s and early 1990s). These cutters have done the Coast Guard's mid-tier offshore patrol work for forty-plus years — Caribbean drug interdiction, Atlantic and Pacific fisheries, migrant interdiction in the Florida Straits — and they're aging hard. Casualty rates and unscheduled maintenance demands have climbed. The replacement is the OPC Heritage-class (WMSM hull symbol), and the gap between WMEC retirements and OPC deliveries is one of the principal Coast Guard fleet-capacity concerns of the late 2020s. When operational commanders say they're short cutters, this is most of what they mean.

The US Coast Guard hull classification symbol for the National Security Cutter (NSC, Bertholf-class) — WMSL = "W" (Coast Guard prefix) plus "MSL" Maritime Security cutter Large — used in cutter hull numbers beginning WMSL-750 USCGC Bertholf — the symbol distinguishes the NSC class from the legacy WHEC High Endurance Cutter symbol used by the predecessor Hamilton-class.

"The WMSL hull symbol — National Security Cutter / Bertholf-class."

WMSL is the hull-classification symbol for the National Security Cutter class — the "W" prefix denotes a Coast Guard cutter (the Coast Guard adds W to Navy-style hull symbols), and "MSL" stands for Maritime Security cutter Large. WMSL-750 USCGC Bertholf is the lead ship; subsequent hulls run WMSL-751 onward through the 11-ship planned class. The introduction of the WMSL symbol with the NSC class was deliberate — the Coast Guard wanted a new symbol to mark the institutional break from the legacy WHEC (High Endurance Cutter) designation used by the Hamilton-class. The medium-class equivalent is WMSM for the OPC Heritage-class. Hull symbols matter to the Coast Guard the way they matter to the Navy — they're how cutters are referenced in operational orders, casualty reports, and the formal Coast Guard correspondence that runs the service.

The US Coast Guard legacy hull classification symbol for the Patrol Boat class — embodied in the now-retiring Island-class 110-foot patrol boats (WPB-1301 USCGC Farallon onward) commissioned through the 1980s and 1990s — being replaced by the Sentinel-class Fast Response Cutters with the WPC hull symbol — Island-class WPBs that remain in service are progressively decommissioning through the late 2020s.

"The WPB hull symbol — legacy Island-class, being replaced by FRC."

WPB is the hull-classification symbol for the legacy Island-class 110-foot patrol boats — the small patrol cutters the Coast Guard operated as the workhorse of coastal patrol and law enforcement for three decades. The class is being replaced by the Sentinel-class FRCs with the new WPC hull symbol, and Island-class WPBs still in service are progressively decommissioning through the late 2020s as FRC fielding continues. Forward-deployed Island-class WPBs at Patrol Forces Southwest Asia in Bahrain were the principal Coast Guard surface presence in CENTCOM for years; that mission has now transferred to forward-deployed FRCs. The WPB-to-WPC transition is one of the longer-running Coast Guard recapitalization stories of the modern era and has been one of the smoother-running compared to the OPC and Polar Security Cutter programs.

The US Army program to develop a Bradley M2/M3 successor — formally Mechanized Infantry Combat Vehicle (MICV), with a competitive prototype phase awarded in 2023 to American Rheinmetall Vehicles and General Dynamics Land Systems — the program is the restart after the cancellation of the prior OMFV Optionally Manned Fighting Vehicle program, with first production targeted for the late 2020s through early 2030s.

"The Bradley successor — XM30 MICV, prototype competition between Rheinmetall and GDLS."

XM30 MICV is the Bradley successor program after the prior OMFV (Optionally Manned Fighting Vehicle) program was canceled — the restart with looser requirements that resulted in a competitive prototype phase. American Rheinmetall Vehicles (based on the Lynx KF41) and General Dynamics Land Systems (based on an evolution of the AJAX/Griffin family) were awarded prototype contracts in 2023; the down-select to a single producer is expected in the 2027-2028 timeframe with production beginning shortly after. The new MICV is designed to address the Bradley's limits in payload (the trade-off between firepower, armor, and dismounted-soldier capacity that has been a Bradley constraint for decades) and to incorporate modern protection, sensors, and networking. The transition from Bradley to MICV will span the late 2020s and 2030s.

A US Kratos Defense unmanned combat aircraft demonstrator, designed under the Air Force Low Cost Attritable Aircraft Technology (LCAAT) effort and the broader Skyborg concept, intended to test concepts for low-cost attritable combat UAS operating as manned-aircraft teammates — has flown in multiple demonstrations with weapons release, manned-unmanned teaming, and autonomous-operation experiments.

"The Kratos low-cost attritable combat UAS demonstrator — Skyborg testbed."

Valkyrie is the airframe that has demonstrated much of the CCA concept ahead of the program of record — Kratos's low-cost attritable combat UAS, flown in multiple Air Force experiments to test weapons release, manned-unmanned teaming, autonomous behaviors, and the broader Skyborg concept of an open-mission-system autonomy framework. Valkyrie isn't itself the CCA program winner, but it is one of the principal demonstrators that informed the CCA program's structure and is in the same conceptual category as the systems General Atomics and Anduril are building under CCA Increment 1.

A further-improved ceramic rifle-threat-rated body armor plate succeeding ESAPI, designed to defeat threats at a higher specified protection level than ESAPI — fielded in selected configurations and units where the threat assessment supports the additional weight, with the trade-off between protection level and soldier load explicitly recognized in fielding decisions.

"The highest-protection ceramic plate in the SAPI family — heavier than ESAPI."

XSAPI is the top of the SAPI ceramic-plate family — rated to defeat a higher-threat level than ESAPI, fielded selectively in formations where the threat assessment justifies the additional weight. XSAPI plates are noticeably heavier than ESAPI, and the weight is real — a soldier wearing XSAPI front-and-back with side plates is carrying significantly more on the body armor alone than the same soldier in ESAPI. Fielding has been selective for that reason: not every formation gets XSAPI, and the decision is part of the broader conversation about how much protection is worth how much weight. The lineage from SAPI to ESAPI to XSAPI is the ceramic-plate side of the same conversation that produced IOTV, modern plate carriers, and the modular Soldier Protection System.