Spc. Katelin Delgado, a combat medic assigned to the 491st Medical Company Area Support, based in Santa Fe, New Mexico, provides basic medical treatment to a mock patient as they prepare to move through a mass casualty decontamination line 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 U.S. Army Reserve Soldiers. (U.S. Army Photo by Sgt. Juan F. Jimenez)