Spc. Zachary Peterson and team members assigned to the 491st Medical Company Area Support, based in Santa Fe, New Mexico, move a mock casualty through a medical treatment area as they react to a mock chemical, biological, radiological or nuclear contamination disaster 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. The exercise helps Soldiers of the 491st Medical Company Area Support engage in a realistic and challenging environment. (U.S. Army Photo by Sgt. Juan F. Jimenez)