170719-N-UX013-691 CORAL SEA (July 19, 2017) Landing Craft Air Cushion (LCAC) 21, attached to Naval Beach Unit (NBU) 7, transports Marines and equipment attached to the 31st Marine Expeditionary Unit (31st MEU) for an amphibious assault during Talisman Saber 17. Talisman Saber is a biennial U.S. and Australia bilateral exercise held off the coast of Australia meant to achieve interoperability and strengthen the U.S. and Australia alliance. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jonathan Clay/Released)