Marines descend from a Navy H-60 Seahawk helicopter during fast-rope drills at landing zone Hansen on Camp Hansen April 19. During the training, Marines learned how to control their descent by wrapping their arms and legs around the rope and squeezing and loosening their grip to adjust their descent speed. The Marines are with 3rd Reconnaissance Battalion, 3rd Marine Division, III Marine Expeditionary Force. - Marines descend from a Navy H-60 Seahawk helicopter during fast-rope drills at landing zone Hansen on Camp Hansen April 19. During the training, Marines learned how to control their descent by wrapping their arms and legs around the rope and squeezing and loosening their grip to adjust their descent speed. The Marines are with 3rd Reconnaissance Battalion, 3rd Marine Division, III Marine Expeditionary Force.