Airmen guide a M1126 Stryker combat vehicle onto an Air Force C-17 Globemaster at Eielson Air Force Base, Alaska, before being deployed to Deadhorse, Alaska, during Arctic Edge 18, March 13, 2018. Arctic Edge 2018 is a biennial, large-scale, joint-training exercise that prepares and tests the U.S. military’s ability to operate in extreme cold-weather conditions. Air Force photo by Airman 1st Class Isaac Johnson