Airmen replace a simulated bombed runway April 30 at the Silver Flag training site Tyndall Air Force Base, Fla. The 823rd RED HORSE, Det. 1, hosts 23 classes every year training more than 6,000 personnel during their seven-day course that delivers the world’s best combat-support training focused on realism and integration. (U.S. Air Force photo by Airman 1st Class Sergio A. Gamboa/Released)