U.S. Air Force Tech. Sgt. Christie Tetley, boom operator from the 157th Air Refueling Wing, prepares 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 flight crew executed the training mission along with a B-52 Stratofortress operated by crew members from the 96th Expeditionary Bomb Squadron, which is deployed 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-MA477-237.JPG