An F/A-18 Hornet aircraft assigned to the U.S. Navy Flight Demonstration Squadron, the Blue Angels, refuels from a KC-135R Stratotanker aircraft in flight over the United States Jan. 3, 2011. The KC-135R is assigned to the 117th Air Refueling Wing, Alabama Air National Guard. (U.S. Air Force photo by Master Sgt. Ken Johnson/Released)
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