U.S. Army Reserve Soldiers from the 409th Engineer Vertical Construction Company of Windsor, Colorado, check for radiation as part of the decontamination process during a mock urban search and rescue operation as part of Guardian Response 22 at Muscatatuck Urban Training Center, Indiana, April 29, 2022. Guardian Response 22 featured realistic venues and civilian role players to simulate a demanding disaster environment and reinforces military skills while preparing Soldiers to work in coordination with local communities during a potential unforeseen catastrophe, such as a natural disaster. (U.S. Army Photo by Sgt. Juan F. Jimenez)