ELLSWORTH AIR FORCE BASE S.D.-- (Left) Airman 1st Class Kenneth Colton and Senior Airman John Vasquez, 28th Civil Engineer Squadron firefighters, roll a hose into a fire truck during a night structural fire training exercise Feb. 17. The 28 CES fire department conducts various training scenarios to maintain readiness qualifications. (U.S. Air Force photo/Airman 1st Class Corey Hook)