What does the acronym "USAF" stand for?

The acronym "USAF" stands for "United States Air Force." This designation is specifically used to refer to the aerial warfare service branch of the United States Armed Forces, which is responsible for conducting military operations in the air. The United States Air Force is a separate and distinct entity from other branches, such as the Army or Navy.

The term "Air Force" emphasizes its unique role in air defense, strategic bombing, and air transport, distinguishing it from the broader category of the armed forces, which includes various branches like the Army, Navy, Marine Corps, and Coast Guard. Recognizing "USAF" as the United States Air Force underscores its function and mission within the defense structure of the United States.