U.S. Air Force Staff Sgt. Jameco Edwards, 351st Air Refueling Squadron boom operator, completes a pre-flight checklist before preparing a KC-135 Stratotanker for takeoff during a readiness exercise at RAF Mildenhall, England, Feb. 26, 2018. The exercise tested the wing’s ability to rapidly mobilize an entire wing and prepare to launch KC- 135s in response to an international incident. (U.S. Air Force photo by Airmen 1st Class Alexandria Lee)

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Photo by: Alexandria Lee |  VIRIN: 180226-F-XW046-0274.JPG