Army Reserve Soldiers of the 307th Chemical Company out of Bell, Calif., find a notional casualty role player during Exercise Guardian Response 21 at Muscatatuck Urban Training Center, Ind., April 23, 2021. Guardian Response is a multi-component Homeland Emergency Response Exercise run by the Army Reserve's 78th Training Division.

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Keywords: 21, 307th, affairs, army, chemical, company, gr, gr21, public, reserve, usarc