A BAC 1-11 test aircraft sits on the Joint Base Elmendorf-Richardson, Alaska, runway, June 12, 2015. Northern Edge 15 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of participants from all services; from active duty, Reserve and National Guard units are involved. (U.S. Air Force photo by Staff Sgt. William Banton/Released)