Army Secretary Driscoll Resigns Amid Iran War, Vacant Army Chief Post

Driscoll's departure leaves the Army without a confirmed civilian secretary or a Senate-confirmed service chief simultaneously, a combination that raises questions about institutional continuity...

Army Secretary Dan Driscoll submitted his resignation on Monday, September 1, 2026, according to an Army official who confirmed the development to the Washington Examiner. The resignation makes Driscoll the latest senior military or civilian leader to exit the Department of Defense during Secretary of Defense Pete Hegseth's tenure.

Driscoll's departure occurs at a moment when the Army faces two simultaneous leadership vacancies. The service currently lacks a Senate-confirmed Army chief of staff, according to the Washington Examiner report, meaning the branch's top civilian and top uniformed leadership positions are both unfilled or operating in an acting capacity at the same time.

The resignation also comes while U.S. Military forces remain engaged in the Iran war, a conflict that has continued beyond the timeline described by the president when operations began, according to the Washington Examiner. The duration and current operational status of that conflict, and the precise number of U.S. Troops deployed, would be reflected in Department of Defense personnel and operational reports filed with Congress under the War Powers Resolution, 50 U.S.C. Section 1541.

Hegseth was confirmed as Secretary of Defense by the Senate in January 2025 by a 50-to-50 vote, with Vice President JD Vance casting the tie-breaking vote, a margin that reflected significant concern among some members about his qualifications, according to Senate records. Since that confirmation, multiple senior figures across military and civilian defense leadership have departed their positions.

The Army secretaryship is a presidentially appointed, Senate-confirmed position under 10 U.S.C. Section 7013. Until the president nominates a replacement and the Senate confirms that individual, the role would be filled by a designated acting official. The identity of any current acting Army secretary and the date of their designation would be recorded in a White House personnel announcement or a Department of Defense administrative order, neither of which had been publicly released as of the publication of this article.

The Army chief of staff position is separately governed under 10 U.S.C. Section 7033 and also requires Senate confirmation. The combination of both vacancies occurring during an active military engagement is a circumstance that defense oversight bodies, including the Senate Armed Services Committee, have the authority to examine through hearings and formal inquiries.

Precedent for simultaneous civilian and uniformed leadership vacancies in a military branch during active operations is limited. Congressional Research Service reports on acting officials and vacancies in Senate-confirmed national security positions document prior instances, though a direct comparison to current conditions would require a specific CRS inquiry or GAO review that has not been publicly released.

The Senate Armed Services Committee, chaired as of this writing by a Republican member, has jurisdiction over both the nomination and confirmation process for the Army secretary and the Army chief of staff. Whether the committee has scheduled hearings or requested documentation related to either vacancy is not reflected in publicly available Senate committee records as of September 1, 2026.

What remains unknown includes the specific date Driscoll submitted his resignation letter, whether he cited particular reasons in that letter, and who the president intends to nominate as his replacement. The resignation letter itself, if submitted to the White House, would not be automatically subject to public disclosure, though it could be released voluntarily or obtained through a Freedom of Information Act request filed with the Office of the Secretary of Defense. The timeline for filling the Army chief of staff vacancy also remains publicly undisclosed.