U.S. Air Force Airman Joshua Elmore, a crew chief for the 379th Expeditionary Aircraft Maintenance Squadron, powers up an RC-135 Rivet Joint aircraft Jan. 28, 2021, at Al Udeid Air Base, Qatar. Elmore studied mechanical engineering for a year in college before deciding to join the Air Force last year. (U.S. Air National Guard photo by Tech. Sgt. Brigette Waltermire)