Army Reserve Spc. Alex Thompson, 376th Engineer Firefighter Detachment, crawls through a tube for confined space familiarization training during Combat Support Training Exercise (CSTX) 86-18-02 at Fort McCoy, Wis., August 13, 2018. This is the second CSTX of the summer for the 86th Training Division. The CSTX exercise is a large-scale training event where units experience tactical training scenarios specifically designed to replicate real-world missions. ( Army Reserve Photo by Spc. John Russell)

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Keywords: 84th, 86th, army, blackhawks, command, cstx, cstx-86-18-02, division, firefighter, fort, mccoy, rail, reserve, splitters, training, wisconsin