US Army Secretary Dan Driscoll resigns amid reported tensions with defense secretary

Dan Driscoll resigned as US Army secretary after 18 months in the role, the White House confirmed on Aug. 31, 2026, amid reported tensions with Defense Secretary Pete Hegseth over Army transformation and readiness efforts.

Driscoll submitted his resignation to President Donald Trump, according to the research information. The White House confirmed the resignation but did not provide an official reason. The Pentagon has not offered further comment on the departure.

Reports cited in the research material attributed Driscoll’s departure to disagreements with Hegseth over the Army’s transformation and readiness efforts. The research did not provide details about the specific disagreements or identify an official explanation from Driscoll, Hegseth or the Pentagon.

Driscoll’s resignation follows the ousting of Army Chief of Staff Gen. Randy George in April 2026. Gen. Christopher LaNeve has been serving as acting Army chief of staff since George’s departure.

Driscoll is a close associate of Vice President JD Vance. During his tenure, he worked on efforts to modernize drone warfare and to mediate in the Russia-Ukraine conflict, according to the research material.

The research information did not provide a successor for Driscoll or details about the timing of the transition. It also did not state whether his resignation had been accepted beyond the White House’s confirmation of his departure.