Defense Secretary Pete Hegseth previously said he would welcome the Department of Government Efficiency and Elon Musk to the Pentagon.

The Pentagon said on Friday that it would fire 5,400 civilian probationary workers starting next week, in the first of what officials say will likely be a wave of much larger layoffs at the Defense Department,

The Defense Department, which is the largest government agency, says it's reducing its civilian workforce by 5% to 8%.