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
9th Air Refueling Squadron flown later the same month. In July, the squadron transferred the personnel and equipment at its detachment at Kunming to the 21st Photographic Squadron, which had just arrived in the theater. Tenth Air Force formed the provisional 5306th Photographic and Reconnaissance Group in October 1943 and attached the squadron to it. In December reconnaissance assets in India were centralized under Photo Reconnaissance Force, Eastern Air Command, a combined Army Air Forces and Royal Air Force headquarters. The provisional group was discontinued on 17 January 1944 and its components, including the 9th, returned to the control of Tenth Air Force. In