Engineering safety
An Airman assigned to the 355th Civil Engineer Squadron stands guard during the 355th CES Integrated Base Defense Training at Davis-Monthan Air Force Base, Arizona, Jan. 16, 2020. The 355th CES training included troop leading procedures, land navigation, defensive fighting positions, individual team movement and convoy operations. (U.S. Air Force photo by Airman 1st Class Jacob T. Stephens)