U.S. Air Force Senior Airman Armand Zachary, 307th Civil Engineer Squadron water fuels system maintenance journeyman, monitors a water truck during Silver Flag at Tyndall Air Force Base, Florida, Feb. 12, 2020. Zachary was one of dozens of Reserve Citizen Airmen from the 307th Civil Engineer Squadron taking part in the course. (U.S. Air Force photo by Master Sgt. Ted Daigle)