Airman 1st Class James Blair, 28th Civil Engineer Squadron fire protection specialist, catches his breath after battling multiple fires as part of a simulated fire exercise at Ellsworth Air Force Base, S.D., June 18, 2012. The simulated structural fires allow firefighters to safely practice extinguishing fires in a controlled training environment. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)