A U.S. Army Reserve Soldier from the 409th Engineer Vertical Construction Company of Windsor, Colorado, participates in a mock urban search and rescue operation in an area with chemical, biological and nuclear contamination during Guardian Response 22 at Muscatatuck Urban Training Center, Indiana, April 29, 2022. This exercise features realistic venues and civilian role players to mock a demanding disaster environment. Guardian Response 22 helps U.S Army Reserve Soldiers exercise command and control in a realistic, challenging environment. (U.S. Army Photo by Sgt. Juan F. Jimenez)