Air Force
An Air Force is a Military organisation that primarily operates in air-based war. They typically use a combination of Fighters, Bombers, Helicopters and other aircraft.
Most (but not all) armed forces make considerable organisational distinction between the land-based warfare of an Army, the sea-based warfare of a Navy, and the air-based warfare of an Air Force - often splitting the three components into mostly independent forces.
Air forces of the world