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. Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947. It is the second youngest branch of the United States Armed Forces and the fourth in order of precedence. The United States Air Force articulates its core missions as air supremacy, global integrated intelligence, surveillance and reconnaissance, rapid global mobility, global strike, and command and control.
The first F-35 Lightning II of the 33rd Fighter Wing arriving at Eglin AFB
An Air Force RQ-4 strategic reconnaissance aircraft
An Air Force KC-46 Pegasus refuels a C-17A Globemaster III
An Air Force A-10 demonstrating close air support at Nellis AFB
Aerial warfare is the use of military aircraft and other flying machines in warfare. Aerial warfare includes bombers attacking enemy installations or a concentration of enemy troops or strategic targets; fighter aircraft battling for control of airspace; attack aircraft engaging in close air support against ground targets; naval aviation flying against sea and nearby land targets; gliders, helicopters and other aircraft to carry airborne forces such as paratroopers; aerial refueling tankers to extend operation time or range; and military transport aircraft to move cargo and personnel.
A United States Air Force F-4 Phantom II releasing aerial bombs over a bombing range in Bardenas Reales, Spain in 1986
World War I fighter planes over Europe, 1915–1918
