Staff Sgt. Jacob Hester (left), and Senior Airman Luis Leon, 36th Civil Engineer Squadron firefighters, respond to a simulated fire during a fuel spill exercise on Andersen Air Force Base, Guam, Nov. 6, 2019. The simulation tested Andersen’s emergency responders on their timeliness and capability in containing a fuel spill. (U.S. Air Force photo by Airman 1st Class Michael S. Murphy)