Department of Defense Office of Inspector General
02/26/2026 | Press release | Archived content
Operation Southern Guard (OSG)
Report | Feb. 26, 2026
Operation Southern Guard (OSG)
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2026
On March 28, 2025, the DoD designated Operation Southern Guard (OSG) as an overseas contingency operation, triggering Lead IG reporting responsibilities under 5 U.S.C. 419. The Council of the Inspectors General on Integrity and Efficiency designated the DoD IG as the Lead IG for OSG, effective July 14, 2025.
This report describes the activities of the U.S. Government in support of OSG, specifically, DoD support to the DHS in the processing, detention, housing, and all aspects of illegal alien holding operations at NSGB, during the period of July 1 through December 31, 2025. This report also discusses the planned, ongoing, and completed oversight work conducted by the DoD OIG, State OIG, the DHS OIG, and our partner oversight agencies.
Department of Defense Office of Inspector General published this content on February 26, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on March 02, 2026 at 17:44 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]