Staff Sgt. Arsonio Arthur, a 733rd Air Mobility Squadron instrument flight controls systems craftsman, checks an emergency power switch on a C-17 Globemaster III at Kadena Air Base, Japan, July 6, 2016. As cargo was loaded onto the C-17, power needed to be distributed throughout the aircraft to keep the cargo cool despite the heat. (U.S. Air Force photo/Airman 1st Class Lynette M. Rolen)