Justin Fulcher started at the Defense Department as a member of DOGE. He was later promoted to a post as senior adviser to Defense Secretary Pete Hegseth.

Pete Hegseth has lost his sixth senior aide in as many months, with the defence secretary’s struggle to retain key staff leaving the Pentagon in limbo.

Justin Fulcher, an adviser to Defense Secretary Pete Hegseth, said in a statement that he had planned to work in the federal government for only six months.

Since at least May, top-ranking and mid-level military officials have circulated drafts of a letter slamming the defense secretary for having “no clue what he’s doing.”

Justin Fulcher confirmed to Fox News Digital that he voluntarily resigned after six months as a senior advisor to Defense Secretary Pete Hegseth, calling his service “inspiring."

The top Defense Department spokesman is getting ahead of a purported letter coming together to raise the signers’ collective concerns surrounding Defense Secretary Pete Hegseth’s performance. The Daily Mail reported on the creation of this letter circulating around military and civilian officials within the department on Wednesday.

The Pentagon continues to shed staff under Trump-appointed Defense Secretary Pete Hegseth, with yet another senior aide exiting his position this week. Senior staffer and adviser to Hegseth Justin Fulcher has exited his position,

Defense Secretary Pete Hegseth says the DOD is "looking into" a Microsoft cloud program that used Chinese engineers after an investigative report raised concerns about CCP access.

Defense Secretary Pete Hegseth’s tenure has seen a series of high-profile staff departures, leaving the Pentagon head without a chief of staff and other key advisers. Hegseth’s inner