Firefighters assigned to the 628th Civil Engineer Squadron work together to put out a fire during a live-burn exercise March 30, 2021 at Joint Base Charleston, S.C. The fire-protection specialists participate in this exercise every three months to renew their training readiness. The training site is the only location available with simulated aircraft fire capabilities on JB Charleston. (U.S. Air Force photo by Airman 1st Class Jade Dubiel)