U.S. Air Force Master Sgt. Jeremiah Gates, 100th Civil Engineer Squadron assistant chief of training, sprays water across the pavement at RAF Mildenhall, England, May 15, 2019. The fire department provided water to simulate spilled fuel for the exercise. The fuel spill exercise was conducted to test the base’s response and recovery capabilities. (U.S. Air Force photo by Airman 1st Class Joseph Barron)