Spc. Katelin Delgado of Corpus Christi, Texas, a U.S. Army Reserve Soldier assigned to the 491st Medical Command Area Support from Santa Fe, New Mexico, documents injuries on the casualty cards of mock victims during Guardian Response 22 at Muscatatuck Urban Training Center, Indiana, May 2, 2022. Guardian Response 22 is a homeland emergency response exercise that provides realistic disaster response training to sharpen the skills and increase the capabilities of Army Reserve Soldiers. Delgado evaluated the injuries of mock casualties before transporting them to a staged decontamination zone. (U.S. Army photo by Spc. Justin Escourse)