A U.S. Air Force Airman, assigned to the 633rd Civil Engineer Squadron, adjusts his gloves during Prime Base Engineer Emergency Force day training at Joint Base Langley-Eustis, Virginia, Jan. 25, 2018. All Airmen are required to be trained on chemical, biological, radiological and nuclear hands on survival skills by March 31, 2018. (U.S. Air Force photo by Airman 1st Class Anthony Nin Leclerec)