Keen Sword
Airmen from the 31st Rescue Squadron and Japan Air Self Defense Force pararescuemen prepare for Exercise Keen Sword Nov. 10, 2016, off the coast of Okinawa, Japan. During Keen Sword, the 17th SOS and JASDF worked together for exercises such as a mass casualty exercise, coordinating rescue efforts. (U.S. Air Force photo by Senior Airman Lynette M. Rolen/Released)