Army Secretary Driscoll Resigns After 18 Months Amid Hegseth Tensions

Army Secretary Dan Driscoll submitted his resignation to President Trump on Monday after serving 18 months in the post. The departure comes as the Pentagon manages an ongoing conflict with Iran and follows earlier leadership changes at the top of the Army.

Driscoll, the youngest person to hold the position, was confirmed in February 2025. A Yale Law School graduate and Army veteran who deployed to Iraq in 2009, he had been tasked with directing active-duty, National Guard, and reserve forces. White House spokeswoman Anna Kelly credited him with advancing priorities centered on readiness and lethality, including support for negotiations between Russia and Ukraine. The statement noted that the Army had grown stronger under his tenure alongside the president and defense leadership.

Multiple reports indicate the resignation stemmed from friction with Defense Secretary Pete Hegseth and frustration over stalled modernization efforts. Driscoll had backed the Army Transformation Initiative, which aimed to merge Futures Command with Training and Doctrine Command while reducing reliance on certain legacy systems such as the AH-64D Apache helicopter, the M10 Booker combat vehicle, and the Gray Eagle drone. Those proposals encountered resistance, according to officials familiar with internal discussions.

Hegseth had already removed Army Chief of Staff Gen. Randy George earlier in the year. George had worked closely with Driscoll on the same set of reforms. Driscoll’s relationship with Vice President JD Vance, a former Yale classmate, was also cited by some observers as a source of tension within the Pentagon. The White House reportedly asked Driscoll to remain until after the midterm elections, but he declined.

The timing places additional strain on civilian oversight of the Army’s largest service at a moment when U.S. forces have faced Iranian missile activity near the Strait of Hormuz. Driscoll’s exit leaves both the civilian secretary and the chief of staff positions without Senate-confirmed leaders.

Throughout his term, Driscoll emphasized practical adjustments to warfare that incorporated unmanned systems and streamlined command structures. Supporters within Congress, including Rep. Steve Womack, described his approach as bringing discipline and common-sense focus to Army operations. The White House maintained that his contributions aligned with the administration’s goal of restoring military strength through measurable improvements in capability rather than institutional expansion.

Driscoll’s departure marks the latest shift in senior Army leadership under the current defense team. The focus now turns to how the Pentagon will maintain momentum on readiness goals while filling key vacancies.