Washington, D.C. — September 2, 2026: U.S. Army Secretary Dan Driscoll has resigned after roughly 18 months in the position, becoming the latest senior military official to leave the Trump administration as major changes continue across the Pentagon.
The White House confirmed Driscoll’s departure on Monday but did not provide a specific reason for his resignation. His exit comes after months of reported disagreements with Defense Secretary Pete Hegseth, adding another layer of uncertainty to the Army’s senior leadership.
Growing Tensions at the Pentagon
Driscoll, who took over as Army secretary in February 2025, had reportedly experienced increasing friction with Hegseth over military leadership decisions and the direction of the Army.
According to reports, disagreements intensified following the removal of Army Chief of Staff Gen. Randy George in April. Driscoll had also been involved in discussions about senior officer appointments and the Army’s broader modernization strategy.
Before leaving, Driscoll reportedly discussed the condition and future direction of the Army with President Donald Trump. His resignation followed that conversation.
A Focus on Army Modernization
During his tenure, Driscoll pushed for changes intended to make the Army faster and more adaptable. His agenda included reducing bureaucratic delays, improving military procurement and accelerating the development of relatively inexpensive weapons and drone technologies.
He also supported efforts to prepare the Army for modern battlefield conditions, where drones and other relatively low-cost systems have become increasingly important.
The White House highlighted his work on military readiness and lethality, as well as his involvement in diplomatic efforts connected to the Russia-Ukraine conflict.
Another Major Leadership Departure
Driscoll’s resignation is not an isolated change. His departure follows a series of high-profile removals and resignations involving senior U.S. military officials during the current administration.
The Army has already experienced significant disruption following the removal of Gen. Randy George. Other senior military figures, including Navy Secretary John Phelan, have also departed their positions.
The scale of the turnover has prompted questions about continuity at a time when the United States is dealing with major international security challenges.
What Comes Next for the Army?
Driscoll’s departure leaves a significant vacancy at the top civilian level of the Army. Reporting indicates that the service is also dealing with an unsettled senior military leadership structure following earlier changes.
For the Army, the immediate challenge will be maintaining momentum on modernization and readiness while a new leadership team is established.
The resignation also puts renewed attention on the relationship between the Pentagon’s civilian leadership and senior military officers. Whether the changes result in a clearer strategic direction or create additional uncertainty is likely to become an important issue in the months ahead.
For now, Driscoll’s exit represents another major turning point in the continuing transformation of the U.S. military leadership under President Trump and Defense Secretary Pete Hegseth.
