A Soldier assigned to the 491st Medical Company Area Support, based in Santa Fe, New Mexico, sprays a mock patient before it enters 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)