His exit comes a month after he fired off a memo announcing an investigation into “unauthorized disclosures of sensitive and ...

The unrest at the pinnacle of the military’s leadership is highly unusual. Hegseth has been the focus of a Pentagon Inspector ...

Kasper is the fifth Defense official to leave the agency in the past week amid investigations of internal leaks within the ...

A top Pentagon official who was ousted in a dramatic purge earlier this month has criticized Defense Secretary Pete Hegseth ...

Now-former Pete Hegseth chief of staff Joe Kasper initiated the leak investigation that led to the firings of senior adviser ...

Pete Hegseth spends at least half of his time investigating leaks—and then working out with active-duty troops to appear ...

Joe Kasper leaves the role voluntarily, but his departure adds to the sense of instability that has gripped the Defense ...

Joe Kasper, chief of staff under Defense Secretary Pete Hegseth, is departing his role but will remain as a Special ...

Defense Secretary Pete Hegseth's chief of staff, Joe Kasper, stepped down Thursday ... or "dirty," internet line installed in his Pentagon office so he could use Signal on a second computer ...

Joe Kasper, who had been at the center of Pentagon chaos over the past week, had been expected to take on another role at the agency. News Reporter Secretary of Defense Pete Hegseth’s chief of ...

Pentagon senior adviser Dan Caldwell, ex-deputy chief of staff Darin Selnick, and Colin Carroll were all removed from the ...