Battle of Sacheon

The Battle of Sacheon was a naval engagement on May 29, 1592 (Gregorian: July 8, 1592) during the Imjin War (1592–98). It occurred at Sacheon where Yi Sunsin's fleet managed to destroy 13 large Japanese ships. It was the first battle of Admiral Yi's 2nd Campaign in the Imjin War, between Japan and Korea, when the turtle ship was first used.