May 28, 2026

Summary Report: Lessons Learned from DoW OIG Reports on Military Construction (Report No. DOWIG 2026 086)

This summary report is one in a series of reports that summarizes key themes and lessons learned from our body of oversight work in several key areas. This report is related to military construction (MILCON). We offer these summaries to provide helpful and timely information relevant to DoW priorities.

May 27, 2026

Operation Inherent Resolve (OIR)

We are pleased to present this Lead Inspector General (Lead IG) report to Congress on Operation Inherent Resolve (OIR). This report fulfills our quarterly reporting responsibilities pursuant to the Inspector General Act of 1978, as amended.

May 27, 2026

Operation Southern Guard (OSG)

We are pleased to present this Lead Inspector General (Lead IG) report to Congress on Operation Southern Guard (OSG). This report fulfills our quarterly reporting responsibilities pursuant to the Inspector General Act of 1978, as amended.

May 20, 2026

Operation Southern Spear (OSS)

This report describes the activities of the U.S. Government in support of Operation Southern Spear (OSS) and presents OSS-related planned, ongoing, and completed oversight work conducted by the DoW OIG, State OIG, and our partner oversight agencies. This report covers the quarterly reporting period of January 1 through March 31, 2026.

May 20, 2026

Project Announcement: Termination of the Audit of the USS Boise Submarine Overhaul Contract (Project No. D2026-D000AT-0059.000)

We announced the subject audit on February 4, 2026 (attached). The objective was to assess the effectiveness of the Naval Sea Systems Command’s management of the USS Boise overhaul contract.

May 18, 2026

Project Announcement: Evaluation of the U.S. Army and Marine Corps’ Sustainment of Ashore Prepositioned Equipment at Subic Bay, Philippines (Project No. D2026-DEV0PA0095.000)

The purpose of this memorandum is to notify you that the DoW Office of Inspector General is initiating the subject evaluation.

May 15, 2026

Audit of the Defense Threat Reduction Agency’s Management of Grants (Report No. DOWIG-2026-085)

The objective of this audit was to determine whether the Defense Threat Reduction Agency (DTRA) effectively managed grants in accordance with the grant terms and conditions.

May 14, 2026

Operation Atlantic Resolve (OAR)

We are pleased to present this Special Inspector General report to Congress on Operation Atlantic Resolve (OAR). This report discharges our quarterly reporting responsibilities pursuant to Section 1250B of the National Defense Authorization Act for 2024 and Lead IG reporting responsibilities under 5 U.S.C. 419.

May 14, 2026

Whistleblower Reprisal Investigation, U.S. Army Directorate of Family and Morale, Welfare, and Recreation Fort Irwin, California (Report No. DOWIG-2026-082)

We conducted this investigation in response to a reprisal complaint alleging that Subject 1 and Subject 2 took multiple personnel actions against the Complainant in reprisal for making protected disclosures to Fort Irwin personnel.

May 13, 2026

Audit of Cyber Vulnerabilities Impacting Department of the Air Force Defense Critical Infrastructure (Report No. DOWIG-2026-083)

The objective of this audit was to assess the progress made by the Department of the Air Force (DAF) in mitigating the Defense Critical Infrastructure (DCI) cybersecurity vulnerabilities identified during DoD assessments conducted in response to Section 1650 of the National Defense Authorization Act for FY 2017.