U.S. Air Force Airmen from the 757th Aircraft Maintenance Squadron inspect an F-15 assigned to the 85th Test and Evaluation Squadron, Nellis Air Force Base, Nevada, as part of exercise Northern Edge 19, May 8, 2019, at Joint Base Elmendorf-Richardson, Alaska. Northern Edge is an exercise showcasing the lethality of joint forces and the capabilities of U.S. forces in and around the Indo-Pacific region. (U.S. Air Force photo by Master Sgt. Nathan Lipscomb)