MARINE CORPS AIR GROUND COMBAT CENTER TWENTYNINE PALMS, Calif. - Marines and a CH-53 helicopter from Marine Heavy Helicopter Squadron 772 refuels an AH-1W Super Cobra helicopter during Exercise Javelin Thrust 2012. Javelin is an annual large-scale exercise which allows active and reserve Marines and Sailors from 38 different states to train together as a seamless Marine Air Ground Task Force. (Photo by Sgt. Kevin M. Okamura/Released)