Senior Airman Clark Hoover-Hill, 455th Expeditionary Aircraft Maintenance Squadron electrical and environmental systems journeyman, deployed from Davis-Monthan Air Force Base, Ariz., checks a gauge on a tank of liquid oxygen before servicing an EC-130 aircraft at Bagram Airfield, Afghanistan, Nov. 19, 2015. The 455th EAMXS is responsible for preparing military aircraft on Bagram for flight and returning them to a mission-ready state once they land.
U.S. Air Force photo by Tech. Sgt. Robert Cloys/RELEASED
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