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
Marshal of the Royal Air Force (marshal of the Royal Air Force is equivalent to a five-star rank) on an air force blue background. The rank insignia and flag exists in some other air forces for equivalent ranks. The rank title differs slightly, often being a variation on marshal of the air force, usually with the name of the relevant air force in place of the words 'Royal Air Force'. A notable example of this practice is the rank of marshal of the Royal Australian Air Force. Unlike other MRAFs who only relinquished their appointments, Sir Peter Harding resigned from the RAF in 1994. Consequently, his