Airmen treat wounds on volunteer casualties at the Self Aid Buddy Care (SABC) station during the Prime Base Engineer Emergency Force (BEEF) challenge at Ellsworth Air Force Base, S.D., July 22, 2016. The Prime BEEF challenge consists of five events such as the Litter Carry, Six Passenger Push, SABC, M4 relay and Battle Buddy stations. (U.S. Air Force photo by Airman Donald Knechtel)