Simulated casualties, from a vehicle accident, on stretcher placed on the ground are attended to by medical personnel, from the German Air Force Rescue Center #1, 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 Orogrande, New Mexico, while participating in the world's largest joint service, multi-nation tactical air operations exercise