Teamwork key as 100th CES Airmen perform bivouac training
U.S. Air Force Airman Brandon Campbell, 100th Civil Engineer Squadron Power Production apprentice from Santa Rosa, Calif., adjusts the rear diopter rings to focus his night-vision goggles in preparation for night operations training during 100th CES bivouac training June 25, 2015, on RAF Mildenhall, England. Training included team movement techniques, land navigation, use of night-vision goggles and Humvee driving. (U.S. Air Force photo by Karen Abeyasekere/Released)

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Photo by: Karen AbeyasekereReleased |  VIRIN: 150625-F-EJ686-032.JPG