Triage Exercise A soldier triages a simulated casualty during a mass casualty exercise at the Joint Readiness Training Center, Fort Polk, La., July 16, 2016. Army National Guard photo by Sgt. Harley Jelis SHARE: Download: Full Size (1.89 MB) Tags: ARMY NATIONAL GUARD, Soldiers Credit: Sgt. Harley Jelis VIRIN: 160716-Z-AR422-159A.JPG Photo Gallery