Army Reserve Pfc. Jalen Salinas, a medic with the 491st Medical Company out of Santa Fe, , checks a role player for radiation exposure 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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Photo credit: © Operation 2021 / Alamy / Afripics
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Keywords: 21, 491st, affairs, army, company, gr, gr21, medical, public, reserve, usarc