Airmen participate in a chemical, biological, radiological and nuclear defense survival skills training course on Nellis Air Force Base, Nev., April 30, 2015. The CBRN defense course consists of individual knowledge-based and demonstration performance objectives that provide an in-depth education on CBRN defense hazards and protective actions. (U.S. Air Force photo by Airman 1st Class Mikaley Towle)
Airman 1st Class Mikaley Towle
Taken on 30 April 2015
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