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
East of Scotland Universities Air Squadron East of Scotland Universities Air Squadron The East of Scotland Universities Air Squadron (), commonly known as ESUAS, is a squadron within the Royal Air Force established in 2003 as an amalgamation of "East Lowlands Universities Air Squadron" (ELUAS) and "Aberdeen, Dundee and St Andrews Universities Air Squadron" (ADStAUAS). It is based at Leuchars Station (Royal Air Force Leuchars until 31 March 15 when it was transferred to Army control), in Fife and flies a fleet of 6 Grob Tutor aircraft. ESUAS is the parent Squadron of 12 Air Experience Flight, who share the aircraft. A Squadron Leader is the