The RAF was formed on 1st April 1918 (Yep...No April fools Joke) by the amalgamation of the royal flying corp (Army air corp) and the Naval air service.
It is the youngest and by far the most civillised armed service, commonly called the 'gentlemans armed service' as apposed to the army and navy where the conscrips of criminals and vagabonds were commonly 'called' upon to fill the ranks.
Royal Air Force Air Cadets was created in 1941.
Royal Netherlands Air Force was created in 1913.
Royal Australian Air Force was created in 1921.
Royal Chicano Air Force was created in 1969.
Royal Lao Air Force was created in 1955.
Royal Malaysian Air Force was created in 1958.
Royal Brunei Air Force was created in 1991.
Royal Air Force Police was created in 1918.
Royal Canadian Air Force was created in 1975.
Royal Jordanian Air Force was created in 1955.
Royal Thai Air Force was created in 1913.
Royal Air Force Memorial was created in 1923.