A C-17 Globemaster III is guided into position behind the boom of a KC-135 Stratotanker during an in-air refueling training mission March 20, 2014, near Joint Base Pearl Harbor-Hickam, Hawaii. The boom was guided by Airman 1st Class Rebekah McCormack, a 96th Air Refueling Squadron in-flight refueling specialist, during refueling procedures training. (U.S. Air Force photo by Staff Sgt. Alexander Martinez/Released)
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