U.S. Air Force Senior Airman Colby Green, 633rd Civil Engineer Squadron electrician, poses for a photo during a real-world event that was part of a Phase Two exercise at Joint Base Langley-Eustis, Virginia, Nov. 19, 2020. The 633rd CES facilities electrical and facilities power production teams installed an automatic transfer switch in placement of a manual switch to support the northern half of the base and military housing. (U.S. Air Force photo by Senior Airman Alexandra Singer)