Airmen of the 931st Air Refueling Wing participated in Chemical, Biological, Radiological, Nuclear, and Explosives training Nov. 4, 2017, McConnell Air Force Base, Kan. The keys for Airmen surviving in a combat environment include possessing the necessary skills needed to help protect themselves and their fellow Airmen and having the proper equipment to do so. CBRNE training helps teach these skills. (U.S. Air Force photo by Tech. Sgt. Abigail Klein)