air force
US /ˈer fɔːrs/
UK /ˈer fɔːrs/

1.
Luftwaffe
the branch of a nation's armed services that conducts military operations in the air
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My brother joined the Air Force after high school.
Mein Bruder trat nach der High School der Luftwaffe bei.
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The country's Air Force conducted a training exercise.
Die Luftwaffe des Landes führte eine Übung durch.