Secretary of Defense Pete Hegseth on Friday fired U.S. Navy Chief of Staff Jon Harrison after the Senate earlier in the week confirmed Hung Cao as the Navy's undersecretary.

Harrison had no military experience prior to being nominated and confirmed as the Navy's chief of staff and oversaw the War Department's realignment of the U.S. Navy's budgeting and policy wings, in addition to minimizing the influence of the Navy undersecretary, Politico reported.

"Jon Harrison will no longer serve as chief of staff to the Secretary of the Navy," the Department of Defense told the New York Post in a statement. "We are grateful for his service to the department."

Harrison worked with Navy Sec. John Phelan while implementing the administrative and leadership changes, which included changing those who

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