Airman Kyle Cota, a 366th Training Squadron explosive ordnance disposal preliminary course student, sketches the explosive device discovered during a reconnaissance exercise at Sheppard Air Force Base, Texas, April 26, 2018. Before beginning the exercise, the student had a fixed amount of time to ask questions about the location and appearance of the explosive device as well as decide what equipment would be needed to accomplish the mission. (U.S. Air Force photo by Airman Madeleine Remillard)