Saber Guardian 17 River Crossing Broll

The Assistant Commandant of the Marine Corps (ACMC) is the second highest ranking officer in the United States Marine Corps and serves as the second-in-command for the Commandant of the Marine Corps (CMC). Before the official title “Assistant Commandant of the Marine Corps” was adopted in 1946, the title of the position was known as “Assistant to the Commandant” and before 1918, known only as “Duty in the Office of the Commandant”. Few records exist detailing the specific duties of this billet prior to the outbreak of WWI because the Commandant of the Marine Corps had only an administrative staff and no deputy. Since its establishment by Congress in 1946, 33 Marines have held the position of Assistant Commandant of the Marine Corps.