Keen Sword 17
U.S. Air Force Master Sgt. Maurice Muro, 31st Rescue Squadron operations superintendent, signals pararescuemen of the time left until a jump during Exercise Keen Sword 17 Nov. 10, 2016, off the coast of Okinawa, Japan. Rescue teams from the 17th Special Operations Squadron and Japan Air Self Defense Force combined their efforts while participating in a mass casualty exercise during Keen Sword. (U.S. Air Force photo by Senior Airman Lynette M. Rolen/Released)