Lance Cpl. Gerrit B. Gribble, a Phoenix, Arizona, native, salutes the pilot of an EA-6B Prowler before it takes off during Exercise Northern Edge, June 15, 2015, at Eielson Air Force Base, Alaska. Northern Edge 2015 is Alaska’s premier joint training exercise designed to practice operations, tactics, techniques and procedures as well as enhance interoperability among the services. Thousands of Airmen, Soldiers, Sailors, Marines and Coast Guardsmen from active-duty, Reserve and National Guard Units are involved. Gribble is an aircraft mechanic with Marine Tactical Electronic Warfare Squadron 2, Marine Aircraft Group 14, 2nd Marine Aircraft Wing, II Marine Expeditionary Force. (U.S. Marine Corps photo by Cpl. Thor J. Larson/Released)