Members of the 51st Medical Group and 51st Civil Engineer Fire Department transfer Airman 1st Class Edwin Olivares to a stretcher during a mass casualty scenario during Exercise Beverly Herd 17-3 at Osan Air Base, South Korea, Sept. 18, 2017. The scenario was held to examine medical personnel’s and first responders’ ability to quickly and appropriately treat a number of casualties in an emergency following the explosion of a simulated theater ballistic missile. Air Force photo by Tech Sgt. Ashley Tyler