A Landing Craft Air Cushion splashes onto San Clemente Island, Calif., during Supporting Arms Coordination Center Exercise on Sept. 24, 2015. This exercise is the first the Marines and Sailors will work together at sea as they prepare for deployment to the Pacific and Central Command areas of responsibility in early 2016. - A Landing Craft Air Cushion splashes onto San Clemente Island, Calif., during Supporting Arms Coordination Center Exercise on Sept. 24, 2015. This exercise is the first the Marines and Sailors will work together at sea as they prepare for deployment to the Pacific and Central Command areas of responsibility in early 2016.