Two soldiers from Headquarters and Headquarters Company,

Two soldiers from Headquarters and Headquarters Company, 301st Maneuver Enhancement Brigade, inspect the other’s Joint Service Lightweight Integrated Suit Technology (JSLIST) Chemical Protective Ensembles preparation for a Chemical, Biological, Radiological, or Nuclear attack or incident on U.S. soil at Joint Base Lewis-McChord, Washington, January 21, 2017. The purpose of the training was to familiarize soldiers with the M50 Joint Service General Purpose Mask, and to ensure that they are prepared to respond to a CBRN incident or attack (U.S. Army Reserve Photo by Spc. Sean Harding/Released).