Members from Naval Air Facility Atsugi observe as personnel take JP-8 fuel samples from an R-11 refueling trucks at Yokota Air Base, Japan, Jan. 26, 2016. The training allowed members to be prepared to support Navy aircraft at Andersen Air Force Base, Guam, during exercise Cope North. (U.S. Air Force photo/Senior Airman David Owsianka)

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Photo by: Senior Airman David Owsianka |  VIRIN: 160126-F-CB366-015.JPG