A Navy Landing Craft Air Cushion heads toward the beach during amphibious assault training. A U.S. Navy Landing Craft Air Cushion, more commonly known as LCAC, loaded with Marines and their equipment from 3rd Marine Regiment heads toward the beach during amphibious assault training of exercise Rim of the Pacific '04 on July 20, 2004. Exercise Rim of the Pacific '04 is an international maritime exercise designed to enhance the tactical proficiency of participating Pacific Rim nations including participants from Australia, Canada, Chile, Japan, South Korea, the United Kingdom, and the U.S. The LCAC is assigned to Assault Craft Unit Five. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 423479-A-RWZ18-484.jpg Photo Gallery