Firefighters from the 316?th Civil Engineer Squadron fight a simulated fire inside a live fire training building March 5, 2010, at Joint Base Andrews Md. Regular training conducted, inside the building, ensures the firefighters can experience the mental and physical challenges of fighting a fire. The 316?th CES firefighters train to improve teamwork, accountability, attention to detail and the proper donning of personal protective equipment. (U.S. Air Force photo by Airman 1st Class Perry Aston) (Released)