A CH53 Super Stallion kicks up a wall of dust as it lands to evacuate simulated casualties during a training exercise conducted by Combat Logistics Battalion 6, 2nd Marine Logistics Group, at Twentynine Palms, Calif., May 31, 2013. The Marines used combined air and artillery fire to suppress enemy positions after breaking through a blocked ambush in a ravine where they raced to move their wounded to the landing zone.