U.S. Army Spc. Job Kipchumba, a medic assigned to the 581st Medical Company Area Support, 61st Multifunctional Medical Battalion, 1st Medical Brigade, assesses a simulated casualty during Operation Silver Lightning at Fort Hood, Texas, March 26, 2026. By simulating a contested battlespace, Operation Silver Lightning enables medical personnel to effectively integrate with other units, preserve combat power, and continue operations. (U.S. Army Photo by Sgt. Nathanial Johnson)