Air force
military branch of service primarily concerned with aerial warfare
Argentine Air Force
Slovak Air Force
Royal Netherlands Air Force
Estonian Air Force
Portuguese Air Force
Bulgarian Air Force
Sri Lanka Air Force
Peruvian Air Force
People's Liberation Army Air Force
Austrian Air Force
Balkan Air Force
Tunisian Air Force
Hellenic Air Force
Brazilian Air Force
Air Corps
Yemeni Air Force
Ukrainian Air Force
Chilean Air Force
Spanish Republican Air Force
Czech Air Force
Imperial German Air Service
Swiss Air Force
Namibian Air Force
Korean People's Army Air Force
Austrian Air Force
Republic of China Air Force
Polish Air Forces in France and Great Britain
Australian Flying Corps
Royal Jordanian Air Force
French Air and Space Force
Royal Australian Air Force
Japan Air Self-Defense Force
Spanish Air and Space Force
Finnish Air Force
Royal Hong Kong Auxiliary Air Force
Royal Air Force of Oman
Royal Lao Air Force
Polish Air Force
Imperial Russian Air Service
Soviet Air Forces
Algerian Air Force
Gambian Air Force
Equatorial Guinea Air Force
Royal Bahamas Defence Force Air Wing
Trinidad and Tobago Air Guard
Royal Flying Corps
Ecuadorian Air Force
Bolivian Air Force