Keen Sword 17
U.S. Air Force pararescuemen from the 31st Rescue Squadron and Japan Air Self-Defense Force prepare for Exercise Keen Sword 17 Nov. 10, 2016, off the coast of Okinawa, Japan. The alliance between the U.S. and Japan maintains peace and security in the Pacific. (U.S. Air Force photo by Senior Airman Lynette M. Rolen/Released)