U.S. Air Force firefighters douse the flames of a burning aircraft husk during a burn pit training exercise at the Silver Flag exercise site at Tyndall Air Force Base, Fla., June 23, 2016. During the seven-day Silver Flag course, firefighters receive specific expeditionary training that supplies the combatant commander with a highly trained and skilled emergency response force. (U.S. Air Force photo by Airman 1st Class Cody R. Miller/Released)