MUSCATATUCK URBAN TRAINING CENTER, Indiana (May 5, 2017) – A mannequin lies on a stretcher and will serve as a casualty for the U.S. Army Reserve’s Guardian Response 17 at the Muscatatuck Urban Training Center (MUTC), Indiana, May 5, 2017. Soldiers from the 266th Ordnance Company, Aguadilla, Puerto Rico, performed moulage on dozens of mannequins and 100 civilian Roleplayers. Nearly 4,100 Soldiers from across the country are participating in Guardian Response 17, a multi-component training exercise to validate U.S. Army units’ ability to support the Defense Support of Civil Authorities (DSCA) in the event of a Chemical, Biological, Radiological, and Nuclear(CBRN) catastrophe.