U.S. Air Force flight crew members from the 157th Air Refueling Wing, N.H., prepare a KC-135 Stratotanker from the 506th Expeditionary Air Refueling Squadron to participate in an air refueling training mission Jan. 19, 2015 over the Pacific Ocean near Andersen Air Force Base, Guam. The 157 ARW crew executed the training mission along with a B-52 Stratofortress operated by crew members from the 96th Expeditionary Bomb Squadron, which is deployed to Guam from Barksdale Air Force Base, La. (U.S. Air National Guard photo by Senior Airman Kayla McWalter/RELEASED)

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Photo by: Senior Airman Kayla McWalterRELEASED |  VIRIN: 150119-Z-MA477-223.JPG