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  1. The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States.

  2. Há 6 dias · The United States Air Force (USAF) is one of the six branches of the United States armed forces. Its primary responsibility is for air warfare and air defense. The USAF was created as a standalone entity in 1947, but the history of American military activity in the air dates to at least the 1860s.

    • The Editors of Encyclopaedia Britannica
  3. As Forças Aéreas do Exército dos Estados Unidos ( United States Army Air Forces ou USAAF em inglês) foram o corpo de aviação militar dos Estados Unidos durante e imediatamente após a Segunda Guerra Mundial .

  4. The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States.