Chemical, biological, radiological, and nuclear specialists with the California Army National Guard's 140th Chemical Company prepare to react to a notional mass casualty decontamination training exercise on Muscatatuck Urban Training Center, Ind., April 23, 2021. This training is part of Guardian Response, a multi-component Homeland Emergency Response Exercise run by the Army Reserve’s 78th Training Division.

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Photo credit: © Operation 2021 / Alamy / Afripics
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Keywords: 140th, 21, 370th, affairs, army, chemical, company, gr21, guardian, public, reserve, response, usarc