US Army Secretary Dan Driscoll has officially resigned after months of alleged tension with Defense Secretary Pete Hegseth, ending an 18-month tenure that included a high-profile role in the US efforts to advance peace negotiations over Russia’s war against Ukraine. Citing an anonymous US official on Monday, Aug. 31, CBS News reported that Driscoll submitted his resignation after speaking to US President Donald Trump about the current state of the Army. The White House separately confirmed his resignation.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. “Secretary Driscoll has been highly effective in advancing President Trump’s agenda to Make America Strong Again at the Department of the Army by providing outstanding leadership,” White House spokesperson Anna Kelly told CBS News. “The US Army is more powerful than ever thanks to his work alongside the Commander-in-Chief [Trump himself] and Secretary of War [Pete Hegseth],” she continued, citing Driscoll’s military readiness, as well as his involvement in Russia-Ukraine negotiations. Friction with Hegseth Driscoll’s departure followed months of friction with Hegseth over the Army’s leadership and current modernization efforts. The possibility of his exit was first reported by The Wall Street Journal (WSJ), while CBS News separately reported on Aug. 22 that Driscoll was considering leaving by the end of the year. The tensions reportedly intensified after Hegseth ousted General Randy George, a close friend of Driscoll’s, from his role as Army chief of staff in April, asking him to take early retirement.