Army Secretary Dan Driscoll Steps Down Amid Pentagon Turmoil
Army Secretary Dan Driscoll has submitted his resignation to President Donald Trump after 18 months in the role, the White House confirmed Monday, marking the latest in a series of high-level departures reshaping the Pentagon’s military leadership. The resignation comes as the U.S. remains engaged in an ongoing war with Iran and follows months of widely reported tensions between Driscoll and Defense Secretary Pete Hegseth.
According to AP News, no official reason was given for the departure, but the exit follows a pattern of upheaval that has swept through the military’s senior ranks under the current administration.
A Leadership Vacuum at the Army
Driscoll’s departure leaves the Army without its top civilian leader, a Senate-confirmed top general, a confirmed Army general in charge of operations, or a confirmed commander of Army troops in Europe, according to The Atlantic. With more than 450,000 active-duty soldiers positioned across the globe, the Army now has fewer generals than at any point in recent history.
A U.S. official told CBS News that Driscoll “spoke to the president about the current state of the Army and submitted his resignation.” Deputy Army Undersecretary Dave Fitzgerald is also expected to step down this week, according to a U.S. official.
Before his resignation, Driscoll brought his concerns about the future of the Army directly to President Trump during a White House meeting last week, according to The Atlantic. Trump was reportedly “surprised and concerned” about the number of senior military departures under Hegseth, with Driscoll arguing that the Army could not transform itself the way it needs to because of the departure of so many leaders.
Friction with Hegseth
The tensions between Driscoll and Hegseth have been building for months. According to USA Today, a source familiar with the matter said Driscoll “brought up concerns with the administration surrounding Army transformation and readiness and Hegseth’s blocking those efforts specifically by firing the generals who were responsible.”
One U.S. official, speaking on the condition of anonymity, said that Hegseth saw Driscoll as “a threat within the bureaucracy” and had long wanted to remove him, but his ties to Vice President JD Vance made it difficult for Hegseth to do so. Driscoll and Vance met at Yale Law School, and Driscoll later served as an adviser to Vance before his appointment.
The conflict came to a head in April when Hegseth ousted Army Chief of Staff Gen. Randy George, a close friend and ally of Driscoll. Driscoll publicly lamented the departure, telling Congress that he and his family drove to George’s house following his resignation “and we all gave him a hug.”
“That being said, the civilian leadership, the design of our system, is that they get to pick the leaders that they want,” Driscoll added at the time.
Hegseth also pushed out Gen. Christopher Donahue, commander of U.S. Army Europe and Africa, in June, and has personally blocked the promotion of senior Army officials.
A Transformative Tenure
Driscoll, an Iraq War veteran and tech investor, was confirmed by the Senate in February 2025 in a 66-28 vote, making him the youngest person ever confirmed as Army Secretary. When nominating him, Trump called him “a disruptor and change agent.”
During his tenure, Driscoll championed the Army Transformation Initiative, a modernization effort focused on drones and counter-drone capabilities. He was also a major force behind cutting red tape for military contractors to quickly develop new weapons systems, and he was openly critical of large defense companies.
“(The) defense industrial base broadly, and the primes in particular, conned the American people and the Pentagon and the Army,” Driscoll said in 2025.
Driscoll also took on an unusual role for an Army secretary: serving as a key negotiator in efforts to end the war between Russia and Ukraine. He led a delegation to Kyiv in November 2025 and participated in talks with Russian officials in Abu Dhabi and Geneva.
Reactions from Congress
The resignation drew sharply contrasting reactions from lawmakers. Rep. Steve Womack, an Arkansas Republican, praised Driscoll on X as “a transformative leader who brought common sense and discipline to the Department of the Army.”
Rep. Jason Crow, a Colorado Democrat and former Army Ranger, expressed concern about the broader implications of the leadership exodus.
“It was actually nice, I will say, having somebody who was smart, that knew the policy, that wanted to do the work, that had a background in these issues,” Crow said, adding that “it’s unfortunate that somebody like that can’t last in this administration.”
Crow warned that the “Pentagon right now is, in some cases, rudderless,” with so many senior leaders gone. “So, I’m gravely concerned about it,” he said.
Sen. Jack Reed, the ranking Democrat on the Senate Armed Services Committee, was more pointed in his criticism of Hegseth.
“Secretary Hegseth is cultivating a culture where dissent is punished and competence is secondary to personal allegiance,” Reed said, while noting that “hundreds of thousands of soldiers are deployed around the world, many in combat zones.”
The Broader Purge
Driscoll’s exit is part of a sweeping reorganization of military leadership under Hegseth, who has fired or pushed out at least two-dozen generals and admirals since taking office. The list includes Gen. Charles Q. Brown Jr., chairman of the Joint Chiefs; Adm. Lisa Franchetti, chief of Naval Operations; Gen. Randy George, Army chief of staff; and Navy Secretary John Phelan, among many others.
According to The Independent, the departures have been driven by Hegseth’s pursuit of “culture war vendettas” against DEI appointments and “woke” values, as well as demands for personal loyalty.
The leadership vacuum comes at a precarious moment. The U.S. is engaged in an ongoing war with Iran, now in its seventh month, with thousands of U.S. Army soldiers deployed in the Middle East. A recent Pentagon assessment warned that maintaining current operations against Iran could leave the U.S. less able to respond to threats elsewhere.
What’s Next
Several questions remain unanswered. It is unclear when Driscoll will officially leave his post, who will replace him as Army Secretary, and how the Army’s modernization efforts will proceed without its key champions. The White House has not indicated whether Trump will take action to address the concerns Driscoll raised about the purge of military leadership.
What is clear is that the Army now faces significant leadership gaps at a time of global instability. As The Guardian noted, Driscoll’s resignation is the latest in a series of departures that have left the Pentagon’s largest service without its top civilian and military leaders simultaneously.
The coming weeks will reveal whether the administration moves to fill these positions quickly or whether the leadership vacuum at the Army deepens further. For now, the departure of Dan Driscoll marks a significant milestone in the ongoing transformation of America’s military leadership—and raises urgent questions about readiness and stability during wartime.