Squadron leader Squadron leader Squadron leader (Sqn Ldr in the RAF ; SQNLDR in the RAAF and RNZAF; formerly sometimes S/L in all services) is a commissioned rank in the Royal Air Force and the air forces of many countries which have historical British influence. It is also sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure. An air force squadron leader ranks above flight lieutenant and immediately below wing commander and it is the most junior of the senior officer ranks. The air force rank of squadron leader has a
Royal Thai Air Force Security Force Regiment Royal Thai Air Force Security Force Regiment The Royal Thai Air Force Security Force Regiment () is a 100-man unit in the Royal Thai Air Force's Special Combat Operations Squadron, has been in existence since the late 1970s. They are based near Don Mueang International Airport and provide anti-hijacking capabilities. They have three assault platoons, each divided into two smaller sections. Royal Thai Air Force Security Force Regiment at that time it was called infantry division, established by the influence of RAF Regiment. It organized according to the official rate of the Royal Thai Air Force in 1937 so-called "military