Staff Sgt. Christopher Collier, 801st Rapid Engineer Deployable Heavy Operational Repair Squadron Engineers Training Squadron fire protection cadre, and Airman 1st Class Jaremy Wright, 325th Civil Engineer Squadron fire protection firefighter, extinguish a controlled fire during a Fluorine-Free Foam training exercise within the Silver Flag burn pit at Tyndall Air Force Base, Fla., April 9, 2024. Rather than firefighters employing a rainfall technique to deploy foam and water through a hose at an arching angle, they now shoot directly at the base of the fire. (U.S. Air Force photo by Airman 1st Class Zeeshan Naeem)