US Army Secretary Dan Driscoll has submitted his resignation to President Donald Trump, according to a senior US official who spoke to Fox News. The move signals a potential shake-up in the Pentagon's civilian leadership and comes amid reported friction between Driscoll and Defense Secretary Pete Hegseth, raising questions about internal tensions within the defence department.

The resignation has been submitted but not yet accepted by the White House, meaning it remains pending. The Wall Street Journal reports that Driscoll is expected to leave the Pentagon within the coming days, though further details of the departure and any successor have yet to be confirmed. This is a developing story.