An Air Force Humvee, assigned to Detachment 1, 3rd Air Support Operations Squadron sits under the Aurora Borealis, during Arctic Anvil, Oct. 9, 2018, in the Donnelly Training Area, Alaska. Air Force, Army and allied forces worked together during Arctic Anvil to provide the most realistic training environment for a simulated contingency operations. (U.S. Air Force photo by Senior Airman Isaac Johnson)