U.S. Air Force Airmen assigned to the 307th Maintenance Squadron make scheduled repairs to a B-52 Stratofortress Aug. 4, 2018 at Barksdale Air Force Base, Louisiana. Metals technology specialists use various welding techniques, water jets, lathes, and mills to manipulate metal on aircraft engines and parts. They do this in order to prolong the life of the jet. (U.S. Air Force photo by Staff Sgt. Callie Ware)