Army Reserve and local police partnership build on skills combatting active shooter events
Sgt. Patrick Chojnowski, in yellow vest, a sergeant assigned to the Arlington Heights Police Department, gives a safety brief to members of the 85th U.S. Army Reserve Support Command during an active shooter training exercise at the 85th USARSC headquarters, September 6, 2025. The training was conducted to increase readiness and understand the tactics and procedures in the event of an active shooter event. (U.S. Army Reserve photo by Sgt. 1st Class Edgar Valdez)