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
Bangladesh Air Force Squadron Leader Khademul Bashar participated in the war as Commander-Sector 6. Bangladesh Air Force was organised in India with the initiative of Squadron Leader Sultan Mahmud (Ex-PAF Pilot), Captain Shahabuddin Ahmed (Ex-PIA Pilot), Captain Akram Ahmed (Ex-Plant protection Pilot) and Captain Sattar (ex-PIA Pilot) and Captain Sarfuddin (Ex-PIA Pilot). Later many Bangladeshi ex-PAF Officers joined in Bangladesh Air Force in India. Finally, Bangladesh Air Force was formed in late July 1971. Indian Air Force trained these Officers July 1971 through November 1971 as fighter pilots. Bangladesh Air Force first went in action on 3 December 1971 and attacked the Chattogram-based