U.S. Army Soldiers with Bravo Battery, 1-623rd Field Artillery, conduct chemical, biological, radiological, and nuclear (CBRN) confidence training at Fort Knox, Kentucky, May 16, 2026. The hands-on training reinforced proficiency with chemical defense equipment and enhanced the unit's ability to remain lethal and effective in contaminated environments. (U.S. Army National Guard photo by Spc. Trey Baldwin)