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 Chicano Air Force was created in 1969.
Royal Air Force Germany was created in 1959.
Royal Air Force Memorial was created in 1923.
Royal Netherlands Air Force was created in 1913.
Royal Lao Air Force was created in 1955.
Royal Thai Air Force was created in 1913.
Royal Norwegian Air Force was created in 1944.
Royal Air Force of Oman was created in 1959.
Royal Bahraini Air Force was created in 1977.
Royal Air Force Police was created in 1918.
Royal Jordanian Air Force was created in 1955.