Kadena Airmen tryout for the Defenders Challenge Championship
U.S. Air Force Airman 1st Class Samuel Gonzales, 18th Security Forces Squadron armorer, assembles an M240 machine gun during the Defenders Challenge Feb. 13, 2020, at Kadena Air Base, Japan. This Defenders Challenge tested basic combat skills and competitor knowledge at various stations along the course. (U.S. Air Force photo by Naoto Anazawa)