Staff Sgt. Vanessa Flores, 47th Civil Engineer Squadron emergency management craftsman, instructs the chemical, biological, radiological and nuclear survival skills class at the readiness and emergency management flight on Laughlin Air Force Base, Texas, Jan. 14, 2015. Military members are required to complete CBRN training prior to a deployment tasking or when they receive permanent change of station orders to a medium or high-threat area. A computer-based CBRN awareness training is also required for all services members every two years to ensure they are mission-ready. (U.S. Air Force photo by Airman 1st Class Ariel D. Delgado)