Jeremiah Hanna-Cruz, 28th Civil Engineer Squadron fire safety driver operator, ignites a fire in the base fire pit training area during a simulated aircraft fire training exercise at Ellsworth Air Force Base, S.D., Sept. 18, 2013. Ellsworth firefighters periodically conduct fire pit training in an effort to ensure all fire crews are prepared to respond to emergencies that occur during real world contingencies. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle / Released)