Biological detection systems create safety for Army Reserve Soldiers
U.S. Army Reserve Spc. Miguel Arreguin-Silva, a chemical, biological, radiological, and nuclear specialist assigned to the 308th Chemical Company, teaches a class on Biological Integrated Detection Systems during Operation Sentinel Justice at Camp Shelby, Miss., June 15, 2026. Operation Sentinel Justice is a large-scale U.S. Army Reserve training exercise that enhances Soldier and unit readiness, validates capabilities, and improves mission effectiveness through realistic, multi-echelon training in a dynamic operational environment. (U.S. Army photo by Sgt. Xavier Chavez)