Military rank Typical army and marine field officer ranks include colonel , lieutenant colonel, major and, in the British army, captains holding an adjutant's appointment. In many Commonwealth countries the field rank of brigadier is used, although it fills the position held by brigadier general in other countries. Naval and coast guard senior officer ranks include captain and commander. In some countries, the more senior rank of commodore is also included. In others lieutenant-commanders, as equivalents to army and marine majors, are considered senior officers. Commonwealth air force senior officer ranks include group captain, wing commander, and squadron leader, where such ranks
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