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
British Army officer rank insignia some time to become familiar with them all. Those in the ranks of Captain, Lieutenant and Second Lieutenant are often referred to as subalterns. Those of Brigadier, Colonel, Lt. Colonel and Major are considered to be of field officers. All above these are considered to be of general officer rank. For a short period, the British Army used the rank of sub-lieutenant, before that was changed to second lieutenant. Before 1767, there were no definite badges for Field Marshals and General officers. In 1767, the British Army issued an order to distinguish Field Marshals (once the rank was established in