Dan Driscoll has resigned as U.S. Secretary of the Army amid reported disagreements with Secretary of War Pete Hegseth, according to reports, marking a significant change in the Trump administration’s senior defense leadership.
Driscoll’s departure comes after months of reported tensions over military policy, personnel decisions and the direction of the Army’s modernization efforts. Sources cited in reports said disagreements between Driscoll and Hegseth had intensified in recent months.
Driscoll, a former Army officer and Trump administration official, was appointed Army secretary in 2025. During his tenure, he focused on military readiness, modernization, weapons procurement and expanding the Army’s capabilities in emerging technologies, including drones and autonomous systems.
His resignation adds to a period of considerable turnover among senior U.S. military and defense officials. The development is likely to attract close attention in Washington as the Pentagon continues to face major challenges involving military readiness, defense spending and overseas security commitments.
The circumstances surrounding Driscoll’s decision remain under scrutiny. While reports have pointed to disagreements with Hegseth, officials have not publicly detailed all the factors behind his resignation.
The White House is expected to announce next steps regarding the Army’s civilian leadership, including whether an acting secretary will be appointed or a permanent successor