Korea, which was suffered by a lot of enemies had many battles. I learned the many wars and battles at War memorial of Korea. Great Victory Against Sui China was Sal-su war. A great general, Eul-ji-moon-deok made perfect plan. First, he made Sui tired and he stopped Sal-su River. Second, when the Sui army reached the river, Eul-ji-moon-deok opened the dam suddenly, so most of the Sui army was drown. And the Imjin war, one of the famous battle against Japan. When japan armies attacked Joseon, general Lee-soun-shin defended japan armies with turtle ships(Geo-buk-seon) which had sharp things on its decks. I think these wars were most greatest wars.