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 Colonel on the Staff. Since 1928, a Brigadier has had the same rank badges as were displayed by a Colonel Commandant. Initially company and field rank insignia did not appear on officers' uniforms. In 1791 the War Office ordered officers to wear different graded epaulettes and wings to distinguish regimental officer ranks (Colonel to Ensign/ Cornet). This was ordered only for line Infantry officers. According to the Army Order, In 1795, a special pattern of epaulettes was ordered for Fusiliers and Light Infantry officers. Field officers of those regiments wore epaulettes over wings. Company officers wore wings. In February 1810,