Major general (United States) held by the commandant was raised to major general. It remained the highest rank in the Marine Corps until January 20, 1942, when the rank held by the commandant was raised to lieutenant general. Given that the U.S. Air Force evolved from its predecessors, the U.S. Army Air Service, the U.S. Army Air Corps and the U.S. Army Air Forces, the rank of major general in the Air Force coincides with its establishment as an independent service in 1947. Major general (United States) In the United States Army, United States Marine Corps, and United States Air Force, major general is
General officers in the United States generalissimo or grand marshal, and they have never been used at the same time as all other general-officer ranks. The rank of General of the Armies has been held only by John Pershing, promoted in 1919, and George Washington, promoted posthumously in 1976 as part of American Bicentennial celebrations. The rank of Admiral of the Navy has been held only by George Dewey, promoted in 1903 with date of rank retroactive to 1899. Proposals to bring back these ranks was made during World War II, with Douglas MacArthur and Chester W. Nimitz under consideration for appointment as General of the