U.S. Army Maj. Miles Miller, the project officer with Task Force 46, looks over his logistics plans during Vibrant Response 2026 at Camp Atterbury, Indiana, Apr. 24, 2026. VR-26 is a large-scale U.S. military exercise designed to prepare forces to respond to chemical, biological, radiological, and nuclear (CBRN) incidents within the homeland. (U.S. Army National Guard photo by Sgt. 1st Class Benjamin Crane)