1st Lt. Ronald Barnhart, 340th Expeditionary Air Refueling Squadron pilot, conducts preflight checks aboard a KC-135 Stratotanker bound for a refueling mission in Afghanistan supporting Operation Enduring Freedom, May 8, 2011. Master Sgt. William Greer

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Size: 3600px × 2395px
Photo credit: © Z2A1 / Alamy / Afripics
License: Licensed
Model Released: No

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