The Pentagon has launched a two-track review of its now-defunct Covid-19 vaccine mandate and committed to publicly releasing the findings by February 2027, as the Trump administration moves to restore trust with service members discharged under the policy. Defence Secretary Pete Hegseth signed the directing memorandums on 14 July, setting in motion both an independent and an internal after-action review.

Two Parallel Reviews Ordered

Hegseth has directed the National Academy of Public Administration (NAPA) to conduct an independent After-Action Review (AAR) capturing lessons learned. Simultaneously, an internal review panel — convened by the Under Secretary of Defence for Personnel and Readiness — will examine the official decisions, coordination, planning, and execution of the Covid-19 vaccine mandate from January 2020 through January 2023. The internal panel will comprise both military and civilian employees.

According to one memorandum signed by Hegseth, all Department of Defence component heads must fully cooperate with the review panel by providing official documents, correspondence, interviews, and briefings, and must detail personnel to support the effort when requested.

What the Department Said

'As part of the Department's continuous effort to rebuild trust with service members discharged under the COVID-19 vaccine mandate, Secretary Pete Hegseth directed NAPA to conduct an After-Action Review capturing lessons learned to improve future policy,' the department said in a statement.

Under Secretary for Personnel and Readiness Anthony J. Tata said the effort was squarely aimed at accountability. 'The actions detailed in these memorandums reflect our ongoing dedication to transparency and accountability. By having members of the affected community lead the internal after-action review and further analyse how the COVID-19 vaccine mandate influenced decision-making and readiness — and making the findings public — we will ensure that the Department learns from the past and does not repeat these mistakes in the future,' Tata said.

Public Release Mandated by February 2027

A separate memorandum directs each department component to appoint two officials authorised to make routine declassification decisions relating to the report so it can be cleared for public release. The memorandum explicitly states the After-Action Review report 'will be approved for release to the public by February 2027.'

The review's recommendations and findings will first be submitted to the Under Secretary for Personnel and Readiness for 'review and appropriate action' before public disclosure.

Background and Broader Context

The Covid-19 vaccine mandate for US military personnel was a defining and divisive policy of the previous administration, resulting in the discharge of thousands of service members who refused inoculation. The Trump administration has previously moved to reinstate some of those discharged and to establish what it describes as permanent safeguards against future mandates.

Notably, the source material refers to the 'Department of War' — a designation not in standard use; the institution is formally known as the Department of Defence. This review represents the most structured accountability mechanism yet applied to the mandate's implementation and is expected to surface institutional lessons that could shape future health-related military policy.

With the public release deadline set for February 2027, the findings are likely to land in the middle of a politically charged environment as the US approaches its next election cycle.