A U.S. Marine Corps Assault Amphibious Vehicles 7A1 from the 3rd Assault Amphibian Battalion, 1st Marine Division, rolls on the beach while conducting a beach landing training exercise during Dawn Blitz 2013 on Camp Pendleton, Calif., June 23, 2013. Dawn Blitz 2013 is a multinational amphibious exercise that promotes interoperability between the Navy and Marine Corps and coalition partners, June 11-28. Participating countries include Canada, Japan, New Zealand and observers from seven countries.