Army Secretary Dan Driscoll has submitted his resignation to President Donald Trump, bringing months of reported tension between one of the Army’s most influential civilian leaders and Defense Secretary Pete Hegseth closer to a dramatic conclusion.
Driscoll’s resignation adds another significant personnel change to a Pentagon leadership structure already shaken by several high-profile departures and dismissals.
Reuters reported Monday that Driscoll submitted his resignation to the White House following months of friction with Hegseth.
The White House praised Driscoll’s tenure but did not publicly detail the circumstances behind his decision.
White House spokeswoman Anna Kelly credited Driscoll with helping advance Trump’s military priorities, strengthening Army readiness and participating in historic military operations as well as diplomatic efforts involving Russia and Ukraine.
Driscoll was confirmed as secretary of the Army in February 2025.
A veteran of the Iraq War and a longtime ally of Vice President JD Vance, he quickly developed a reputation for challenging some of the Pentagon’s traditional procurement practices.
Driscoll pushed the Army to acquire weapons faster, rely more heavily on commercially available technology and adapt lessons learned from modern conflicts, particularly the widespread use of inexpensive drones.
He was also publicly critical of major defense contractors.
That willingness to confront established Pentagon practices made Driscoll one of the most visible figures in Trump’s effort to reshape the military bureaucracy.
But his tenure was increasingly overshadowed by reports of internal disagreements.
Tension between Driscoll and Hegseth became especially visible after the April removal of Army Chief of Staff Gen. Randy George.
George had worked closely with Driscoll on Army modernization efforts.
His departure left the Army without a permanently confirmed uniformed chief, and Driscoll’s exit could deepen uncertainty at the top of the service.
Reports of friction between Driscoll and Hegseth had circulated for months.
As recently as April, Driscoll publicly insisted that he had no intention of leaving his position.
By late August, however, multiple reports indicated that he was considering departing before the end of the year.
Monday’s resignation accelerated that timetable dramatically.
The leadership change comes as the U.S. military faces an unusually demanding period.
American forces remain heavily involved in the Middle East, including the renewed confrontation with Iran, while the Pentagon continues efforts to modernize weapons production, expand drone capabilities and respond to growing strategic competition with China and Russia.
Driscoll’s departure therefore carries consequences beyond Washington personnel politics.
The Army is simultaneously confronting questions about procurement speed, battlefield technology, weapons stockpiles, recruitment, military housing and how quickly the service can adapt to warfare increasingly dominated by drones, missiles and electronic systems.
Whoever replaces Driscoll will inherit those challenges immediately.
The White House has not yet announced a successor.
The resignation also places renewed attention on Hegseth’s management of the Pentagon after a series of senior leadership changes during Trump’s second administration.
For the Army, another transition at the top is now underway at a moment when stability may be particularly difficult to find.
What Happens Next
Watch for Trump’s decision on Driscoll’s successor, the timing of Driscoll’s formal departure and whether additional Pentagon personnel changes follow.
