A manikin prepared by the Effects and Enablers cell at Camp Atterbury, Ind., lays idly as part of a casualty evacuation during Exercise Guardian Response 21 at Camp Atterbury, Ind., April 30, 2021. Guardian Response is a multi-component Homeland Emergency Response Exercise run by the Army Reserve's 78th Training Division. (U.S. Army photo by Sgt. Anshu Pandeya)