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 officer the modern rank titles. Serjeant major (later spelled sergeant major) as a senior rank of non-commissioned officer was a later creation. The armies of Arab countries use traditional Arabic titles. These were formalized in their current system to replace the Turkish system that was formerly in use in the Arab world and the Turco-Egyptian ranks in Egypt. Other nomenclatures for general officers include the titles and ranks: In addition to militarily educated generals, there are also generals in medicine and engineering. The rank of the most senior chaplain, (chaplain general), is also usually considered to be a general officer rank.