The DoD OIG submits semiannual reports summarizing its activities as required by the Inspector General Act of 1978. These reports serve to apprise Congress and the Secretary of Defense of noteworthy findings, progress, and recommendations for improvement.
This report highlights our oversight and investigative activities to promote the economy, efficiency, and effectiveness of the Department’s programs and operations and the integrity of its workforce. Our oversight activities consistently yield a strong return on investment. From October 1, 2024, through September 30, 2025, for every $1 spent on OIG activities, we returned $8 to the U.S. Government.
For this reporting period, we:
- Identified $3.7 billion in potential monetary benefits and made 353 recommendations in our 93 programmatic oversight reports and advisories issued.
- Enabled the recovery of more than $1.22 billion through our criminal investigations.
- Completed 16 administrative investigations of alleged senior official misconduct, whistleblower reprisal, and Service member restriction.
Also during this reporting period, the Chair of the Council of the Inspectors General for Economy and Efficiency designated the DoD Inspector General (IG) the Lead IG for Operation Southern Guard, the U.S. Southern Command’s mission supporting the Department of Homeland Security at Naval Station Guantanamo Bay, Cuba. The DoD OIG continues to serve as the Lead IG for Operations Inherent Resolve and Enduring Sentinel, and the Special IG for Operation Atlantic Resolve. In that role, the DoD OIG led the coordination of whole‑of‑government oversight of approximately $187 billion in total appropriations in response to Russia’s full-scale invasion of Ukraine. The DoD OIG issued 10 reports related to support for Ukraine and identified $2.85 billion in potential monetary benefits.