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Trench Rescue at Guardian Response 17
A crew of 468th Fire Fighting Detachment Soldiers shore up the side of a trench in order to extract a mannequin casualty safely during Guardian Response 17 at Muscatatuck Urban Training Center, Indiana on May 7, 2017. Nearly 5,000 Soldiers and Airmen from across the country are participating in Guardian Response 17, a multi-component training exercise to validate the military's ability to support Civil Authorities in the event of a Chemical, Biological, Radiological, and Nuclear (CBRN) catastrophe. (U.S. Army Reserve photo by Staff Sgt. Christopher Sofia/Released)