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A C-17 Globemaster III drops U.S. Army Soldiers over Sicily Drop Zone during Large Package Week at Fort Bragg, Fayetteville, North Carolina. Large Package Week is a Joint Army and Air Force training exercise designed to improve Joint Airborne combat and contingency capabilities (Melissa Goslin/USAF/Rex Features)

U.S. Air Force: Pictures provide rare glimpse into life in the skies

This stunning set of photographs illustrate the difficult but often inspiring work undertaken by the U.S. Air Force. Each photograph was taken by a member of the Air Force during training in America, South Korea and Afghanistan. From spectacular views aboard an aircraft to intimate moments shared between the airmen, the pictures provide a snapshot into the daily life of those magnificent men and women in their flying machines.