181004-F-ON660-069
U.S. Air Force Master Sgt. Darnell Dobson, 52nd Civil Engineer Squadron training assistant chief, left, and Staff Sgt. Mathew King, 52nd CES crew chief, right, prepare to conduct live-fire structural burn training at Spangdahlem Air Base, Germany, Oct. 4, 2018. The training kicked off Fire Prevention week, an annual event held in remembrance of the Great Chicago Fire of 1871, one of the most destructive fires in U.S. history. The Chicago fire sparked the start of building standards, firefighting strategies, and public fire safety education. (U.S. Air Force photo by Airman 1st Class Valerie Seelye)