• U.S. Army Secretary Dan Driscoll resigns after 18 months in office.
• His departure follows reported tensions with Defense Secretary Pete Hegseth.
• Driscoll's resignation signifies ongoing military leadership upheaval under the Trump administration.
• The White House praised Driscoll for his contributions towards military operations and readiness.
• His exit adds to a string of high-profile departures in the Pentagon.

U.S. Army Secretary Dan Driscoll has submitted his resignation after approximately 18 months in the position, confirmed the White House on August 31. The resignation follows months of reported tensions with Defense Secretary Pete Hegseth, marking another departure in a series of military leadership shake-ups during the Trump administration, according to Reuters and South China Morning Post.

White House spokeswoman Anna Kelly emphasized Driscoll's effectiveness in "advancing President Trump’s agenda to Make America Strong Again" by leading significant military operations and enhancing Army readiness. She stated, "The United States Army is more powerful than ever thanks to his work alongside the Commander-in-Chief," according to Al Jazeera and BBC.

Driscoll's resignation follows the abrupt removal of key figures within the Army, including Army Chief of Staff General Randy George, who was ousted by Hegseth in April. This change has raised concerns about the stability of military leadership as Driscoll’s ally, George, was noted for his transformational role in the Army, according to Los Angeles Times and India Times.

The Pentagon has seen significant turnover under Hegseth's leadership, with Driscoll’s resignation adding to a troubling trend of senior military officials leaving their posts. This includes recent departures such as Navy Secretary John Phelan, who was removed after conflicts with Hegseth, as noted in various reports including Channel News Asia and NPR.

Driscoll, an Iraq war veteran, entered the role amid expectations of modernizing military operations, particularly through advancements in drone technology. His advocates praised his efforts in improving Army capabilities and fostering a culture of innovation, while the continuation of such programs remains uncertain following his exit, according to Le Monde and Los Angeles Times.