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CSTX 86-17-02 Chemical Training
U.S. Army Reserve Spc. Innethmaheart Utupo, 413th Chemical Company, collects a simulated chemical sample during Combat Support Training Exercise (CSTX) 86-17-02 at Fort McCoy, Wis., August 12, 2017. CSTX includes more than 12,000 service members from the Army, Navy, Air Force and Marine Corps as well as from six countries. CSTX is a large-scale training event where units experience tactical training scenarios specifically designed to replicate real-world missions. (U.S. Army Reserve photo by Spc. John Russell/Released)