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Base Spending

Osan AB

Air Force
Total Base Spending Tracked
$642.0M
Across 2 spending entries
Spending Breakdown
Operations & Maintenance
$580.0M90%
Military Construction
$62.0M10%
operations
Osan AB — Base Operations & Maintenance (FY2025)

Annual BASOPS for Osan Air Base, South Korea — home to the 51st Fighter Wing and the 7th Air Force headquarters. Osan is the primary gateway for USAF forces entering Korea and is located just 48 miles south of the DMZ. The proximity to North Korea drives extraordinarily high alert postures and hardened facility requirements. O&M covers combat-ready operations for approximately 14,000 U.S. personnel on unaccompanied and accompanied tours.

Air ForceFY2025Source: DoD FY2025 Installation Budget Justification
$580.0M
construction
Osan AB — Military Construction (MILCON) FY2025

FY2025 MILCON for Osan AB. 7th Air Force operations center modernization ($36M) and hardened aircraft shelters ($26M).

Air ForceFY2025Source: DoD Comptroller FY2025 MILCON Congressional Justification
$62.0M

Base-level spending data from Military Construction (MILCON) appropriation requests, installation status reports, and Army/Navy/Air Force installation management budget justification documents.