U.S. Army Secretary Dan Driscoll has submitted his resignation letter to President Trump, signaling a significant shift in military leadership at the highest level.
The resignation, delivered Monday evening, remains pending acceptance by the White House. As of now, Driscoll is still in his position while the administration determines its next steps.
A senior U.S. official confirmed that Driscoll submitted his resignation directly to President Trump and that it has not yet been accepted. The official noted that Driscoll is expected to depart the Pentagon within days.
The tensions between Driscoll and Defense Secretary Pete Hegseth have been cited as a key factor in the move. Reports indicate months of friction over the direction of the Army, including the recent removal of Army Chief of Staff Gen. Randy George—a close associate of Driscoll—in April.
According to multiple sources, Driscoll raised concerns about Army transformation and readiness during his tenure, while Hegseth removed senior officers involved in those efforts. The White House has not specified a reason for Driscoll’s departure but praised his record.
White House spokesperson Anna Kelly highlighted Driscoll’s achievements, stating he “had been highly effective in advancing President Trump’s agenda at the Army,” restored the service’s focus on readiness and lethality, and assisted with negotiations between Russia and Ukraine. The statement did not mention a reason for resignation or name a successor.
Driscoll, sworn in as Army Secretary on February 25, 2025, oversees nearly one million active-duty, National Guard, and Reserve soldiers, along with over 265,000 civilians. He is also an Army veteran, having served as an armor officer from 2007 to 2010.
The White House has not yet confirmed a replacement for Driscoll, leaving the next steps in limbo.