Medical personnel from the German Air Force Rescue Center #1, place stretchers with simulated casualty, from the simulated vehicle crash in the background, on the ground during a mass casualty exercise at Dona Ana Range, Fort Bliss, Texas. The German soldiers, are demonstrating their rescue techniques to the U.S. Army's 396th Combat Support Hospital personnel from Orogrand, New Mexico, while participating in the world's largest joint service, multi-national tactical air operations exercise