ELLSWORTH AIR FORCE BASE, S.D. -- (Left) Senior Airmen Jared Manning and John Vasquez, 28th Civil Engineer Squadron firefighters, stand ready to ignite a fire for a night structural fire training exercise, Feb. 17. The 28th CES fire department conducts various training scenarios to maintain readiness qualifications. (U.S. Air Force photo/Airman 1st Class Corey Hook)