Airman 1st Class James Blair, and Bill Cina, 28th Civil Engineer Squadron fire protection specialists, extinguish flames in a controlled exercise at the structural burn training facility at Ellsworth Air Force Base, S.D., June 18, 2012. The 28th CES fire department routinely conducts various training scenarios to maintain mission readiness. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)