Airmen assigned to the 786th Civil Engineer Squadron move and clear out dirt during legacy crater repair training during Silver Flag at Ramstein Air Base, Germany, July 10, 2020. Legacy crater repair is used to repair an airfield after an attack by large ordnance. Silver Flag is a contingency training course consisting of seven training days and two field exercise days for U.S. Air Force civil engineers, force support and vehicle operator personnel. (U.S. Air Force photo by Senior Airman Milton Hamilton)