Tech Sgt. Nathaniel D. Ball, 433rd Maintenance Squadron sheet metal mechanic, explains how the Reserve Citizen Airmen in the metals and structural shops create replacement parts for the C-5M Super Galaxy to Rowlett High School Air Force Junior Reserve Officer’s Training Corps cadets at Joint Base San Antonio-Lackland, Texas Nov. 9, 2018. (U.S. Air Force photo by Master Sgt. Kristian Carter)