U.S. Air Force Airman 1st Class Zackery Dwyer, 633rd Communications Squadron cable and antenna maintainer, performs preventative maintenance on a splice case at Langley Air Force Base, Va., Nov. 3, 2015. A splice case holds fiber and copper wires which are used to provide networking for the entire base. (U.S. Air Force photo by Senior Airman Breonna Veal/Released)