 Marines and sailors with Company C, battalion landing team 1st Battalion 4th Marines, 31st Marine Expeditionary Unit insert the CH-46E C-9 helicopters to conduct a mock raid on an insurgent stronghold. The assault force engages role players with simulated ammunition, securing multiple heavily defended structures as part of a certification exercise. Flying from the deck of the USS Essex, currently floating off the coast of Okinawa and engaging live aggressors provides a realistic test of the Marine's skills. We're shooting at other people, they're shooting back at us. We have cash and tees. I mean, this is really something to get in. The training is one of many events designed to certify the capabilities of the 31st MEU before deployment. Marine Sergeant Paul Robbins Jr., Camp Schwab, Okinawa.