United States Navy Petty Officer 3rd Class Shane Marlow, an aviation mechanic with the U.S. Navy Patrol Squadron One, Whidbey Island, Washington, performs post flight maintenance on a LSRS (P3) during the Northern Edge Premier Joint Training Exercise at Eielson Air Force Base, Alaska, June 20. Participants in the exercise practice techniques and tactics correlating with defensive counter air, close air support, air exclusion of marine targets, and personnel recovery operations. (U.S. Air Force photo/ Staff Sgt. Lakisha)