US Army Secretary Dan Driscoll has handed his resignation to President Donald Trump, the White House said on Monday, becoming the latest high-profile figure to depart the Defense Department. The Army official, who is second in line to Defense Secretary Pete Hegseth, had reportedly been eyeing an exit from the Pentagon amid apparent friction with the secretary.
White House spokesperson Anna Kelly said in a statement to the Associated Press: “Secretary Driscoll has been highly effective in advancing President Trump’s agenda to Make America Strong Again at the Department of the Army by providing outstanding leadership during historic military operations, restoring an emphasis on readiness and lethality, assisting with negotiations between Russia and Ukraine, and more.” She added: “The United States Army is more powerful than ever thanks to his work alongside the Commander-in-Chief and Secretary of War.” The news was first reported by The Wall Street Journal.
The resignation comes after months of turmoil at the Defense Department, which has seen numerous incidents, from leak investigations and budget issues to the ousting of several senior officials, including the Army Chief of Staff Randy George in April. In June, the Army’s commander of its forces in Europe and Africa, Gen. Christopher Donahue, unexpectedly stepped down.
Driscoll was a George ally and lamented his departure, as did Republican and Democratic lawmakers. Driscoll told Congress in April that he and his family drove to George’s house following his resignation “and we all gave him a hug.” He added: “That being said, the civilian leadership, the design of our system, is that they get to pick the leaders that they want.”
Driscoll is an Iraq war veteran, tech investor, and former adviser to JD Vance, whom Driscoll met at Yale Law School. When nominating Driscoll in 2024, Trump called him “a disruptor and change agent.”
As Army Secretary, Driscoll was tapped for the unusual role of key negotiator to try to end the war between Russia and Ukraine. He was also a major force behind trying to cut the red tape for military contractors to quickly develop more drones and counter-drone capabilities as warfare rapidly changes around the world.
The Senate confirmed him in February 2025, voting 66-28, following an Armed Services Committee hearing that was largely non-confrontational and focused on how the Army could modernize its systems, improve recruiting, and beef up the military industrial base.