Northern Edge 2017
A U.S. Air Force F-15E Strike Eagle, out of Eglin Air Force Base, Fla., taxis after landing at Joint Base Elmendorf-Richardson, Alaska, during exercise Northern Edge 2017, May 11, 2017. With participants and assets from the U.S. Air Force, Army, Marine Corps, Navy and Coast Guard, Northern Edge is Alaska’s premier joint-training exercise designed to practice operations and enhance interoperability among the services. (U.S. Air Force photo by Alejandro Pena)