The U.S. Air Force is one of three military departments within the Department
of Defense.

The Air Force Chief of Staff serves as a member of the Joint Chiefs of Staff,
together with the Army and Navy chiefs.

Behind the Air Force stands the Air Force Reserve and the Air National Guard.

The U.S. Air Force employs a wide variety of aircraft and missiles, air-to-air
and air-to-surface of varying ranges and capabilities.