Southern Border Security: DOD Used Multiple Strategies to Fund Operations

What GAO Found The Department of Defense (DOD) used multiple strategies to fund support for southern border operations since the start of fiscal year 2025 and into fiscal year 2026. Specifically, DOD realigned $1.74 billion in funding from amounts appropriated for fiscal year 2025 from various funding categories; transferred $608 million from or through DOD’s Drug Interdiction and Counter-Drug Activities, Defense account; relied on military construction authorities to fund border barrier projects using $300 million from within existing military construction appropriation accounts; began obliga