Squadron leader a flying squadron is usually commanded by a wing commander, with each of the two flights under a squadron leader. However, ground-operating squadrons which are sub-divisions of a wing are ordinarily commanded by a squadron leader. This includes squadrons of the RAF Regiment and University Air Squadrons. The rank insignia consists of a thin blue band on a slightly wider black band between two narrow blue bands on slightly wider black bands. This is worn on both the lower sleeves of the tunic or on the shoulders of the flying suit or the casual uniform. Squadron leaders are the lowest
Commandant (rank) (Comdt) () is a military rank in both the Irish Army and Irish Air Corps. It is equivalent to major and squadron leader. In the Irish Naval Service, the equivalent rank is lieutenant commander. Commandant (shortened from "capitaine-commandant", i.e. a "captain commanding" (a battalion)), is an officer-grade rank of the Military of France, specifically the French Army and the French Air Force, which is equivalent to major. The "commandant" is also styled "chef de bataillon" ("battalion head") in the infantry, "chef d'escadrons" ("squadrons head") in the armoured cavalry and "chef d'escadron" ("squadron head") in the artillery and the "Gendarmerie". "Commandant"