Pin 'em
U.S. Air Force Master Sgt. James Ashby, the 35th Security Forces Squadron NCO in charge of training and combative instructor, referees the combatives tournament of the Winter Warrior Challenge at Misawa Air Base, Japan, Dec. 14, 2017. The competition covered mental and physical fitness, focusing on skills that Airmen are familiar with during routine operations. (U.S. Air Force photo by Staff Sgt. Melanie Hutto)