The battle of Myeongnyang. Oct 27, 1597. the Korean admiral Yi Sun-sin fought the Japanese navy at sea in Myeongnyang Strait, near Jindo Island. With only the 13 ships remaining from Won Gyun's disastrous defeat at the Battle of Chilchonryang, Admiral Yi Sunsin held the strait against a fleet of 133 Japanese warships and at least 200 Japanese support ships. Many Japanese warships were sunk or disabled during the battle and the Japanese were forced to retreat. Given the disparity in numbers, the battle is regarded as one of Admiral Yi's most remarkable victories.