U.S. Air Force Staff Andrew Walker, a fabrication specialist with the 379th Expeditionary Maintenance Squadron uses a computer numerical control machine at Al Udeid Air Base, Qatar, June 5, 2017. The CNC allows Walker and other machinists to increase the speed of the manufacturing and reduce the wait time for new aircraft parts. (U.S. Air Force photo by Tech. Sgt. Amy M. Lovgren)