British Army officer rank insignia were ordered to wear the same collar as other General officers, but no device in the collar. In 1880, War Office ordered to move rank badges from collar to shoulder. In 1921, the War Office abolished the rank of Brigadier General and introduced a new rank called Colonel Commandant (Officer commanding a Brigade) or Colonel on the staff (officer not commanding a Brigade, but staff officer). The badges of Colonel Commandant and Colonel on the staff were the same, consisting of a crown and three stars. In 1928, Brigadier rank was introduced by abolishing the ranks of Colonel Commandant and
Major general warfare center, training center, weapons center, or logistics center commanders, or senior directors on Air Force and joint staffs. In the case of the Air National Guard, they may also serve as The Adjutant General (TAG) for their state, commonwealth or territory. In Vietnam, the rank of major general is known as "thiếu tướng". It is used in the army and the air force. It is the equivalent to "chuẩn Đô đốc" in the Navy. The rank of "thiếu tướng" is the lowest general officer and flag officer rank, equivalent to a one-star general and admiral. In the Vietnamese People's