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.

May 13, 2026

Evaluation of the DoW’s Implementation of the Civilian Harm Mitigation and Response Action Plan (Report No. DOWIG‑2026‑084)

The objective of this evaluation was to assess how effectively the DoW implemented the Civilian Harm Mitigation and Response Action Plan (CHMR‑AP) and whether the implementation complied with the CHMR‑AP’s guidance and directed timelines.

May 13, 2026

Statement of Brett A. Mansfield, Deputy Inspector General Department of War for the hearing on “DoW Financial Management: Examining Progress and New Audit Approaches”

Statement of Brett A. Mansfield, Deputy Inspector General Department of War for the hearing on “DoW Financial Management: Examining Progress and New Audit Approaches.”

May 11, 2026

Audit of the DoW’s Management of the Acquisition of Handheld Targeting Systems (Project No. D2026-D000AT-0093.000)

The purpose of this memorandum is to notify you that the DoW Office of Inspector General is initiating the subject audit in May 2026. The objective of this audit is to assess the effectiveness of the DoW’s management of the acquisition of handheld targeting systems.