South Korean Marine Corps' amphibious vehicles and its Navy's Landing Platform Helicopter (LPH) ship 'Dokdo' (behind) take part in a mock landing operation in the sea near Incheon, west of Seoul, September 9, 2008. The operation marked the U.S.-led United Nations troops' landing operation during the 1950-1953 Korean War. REUTERS/Jo Yong-Hak (SOUTH KOREA)