Group captain the wing commander and group captain command pennants are triangular in shape. The rank of group captain is also used in a number of the air forces in the Commonwealth, including the Bangladesh Air Force, Ghana Air Force, Indian Air Force (IAF), Nigerian Air Force, Pakistan Air Force (PAF), Royal Australian Air Force (RAAF), Royal New Zealand Air Force (RNZAF), Sri Lankan Air Force and the Trinidad and Tobago Air Guard. It is also used in the Egyptian Air Force, Hellenic Air Force, Royal Air Force of Oman and the Royal Thai Air Force. The Royal Canadian Air Force used
Royal Thai Air Force of the Royal Thai Air Force's Special Combat Operations Squadron, was formed in the late 1970s and are based near Don Muang Airport and provide anti-hijacking capabilities. They have three assault platoons, each divided into two sections. The Royal Thai Air Force Combat Group is divided into 11 wings plus a training school, plus a few direct-reporting units. First set up in 1913 in the same year as the Air Force, providing nursing services only, and over the years has gradually expanded. It operates Bhumibol Adulyadej Hospital and Royal Thai Air Force Hospital in Bangkok, as well as smaller hospitals