U.S. Air Force Senior Airman Christopher Reyes, a firefighter with the 8th Civil Engineer Squadron, opens a fire hydrant at Kunsan Air Base in South Korea March 21, 2013, during exercise Beverly Midnight 13-2. Beverly Midnight is an operational readiness exercise sponsored by the 8th Fighter Wing that is designed to evaluate and measure the ability of installations to execute their combat mission in a chemical environment by creating realistic scenarios for exercise evaluations. (U.S. Air Force photo by Senior Airman Marcus Morris/Released)