Joseph Thompson, 316th Civil Engineer Squadron fire protection assistant chief of operations throws excelsior on burning pallets during live fire training March 5, 2010, at Joint Base Andrews Md. Live fire training is a necessary and indispensable tool for 316?th CES firefighters. Giving the firefighters the ability to experience heat and flames from a structure fire, but in a controlled environment. (U.S. Air Force photo by Airman 1st Class Perry Aston) (Released)