Airmen assigned to the 28th Civil Engineer Squadron participate in a litter carry exercise during the Prime Base Engineer Emergency Force Challenge at Ellsworth Air Force Base, S.D., Sept. 22, 2022. The Prime BEEF Challenge is a physical and mental readiness challenge that tests every engineer’s capability to operate while under extreme stress. This challenge prepares the 28th Bomb Wing’s engineers to be ready in a moment’s notice to respond to emergencies. (U.S. Air Force photo by Airman Yendi Borjas)