President Donald Trump fired Chair of the Joint Chiefs Gen. C.Q. Brown on Friday night, and said he intends to dismiss the Navy’s top admiral and the Air Force’s second in command — an unprecedented shakeup of the Pentagon’s top brass that will trigger ripple effects throughout the military.

Trump, in a Truth Social post, said he was nominating retired Air Force Lt. Gen. Dan “Razin” Caine to take Brown’s place. Caine is a partner at Shield Capital, a venture capital firm.

Trump also has claimed Caine donned a ‘MAGA’ hat during their 2018 meeting in Iraq, which is against military regulations.