According to the US Air Force, as of 2009, the aerial warfare service branch “operates 5,573 manned aircraft in service (3,990 USAF; 1,213 Air National Guard; and 370 Air Force Reserve); approximately 180 unmanned combat air vehicles, 2,130 air-launched cruise missiles, and 450 intercontinental ballistic missiles.” Click here for incredible examples of US Air Force photography. Continue reading to watch the KC-135 Air Refueling “The Indispensables” United States Air Force documentary.

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