Liancourt Rocks dispute Japan. In 1954, Japan proposed a reference to the International Court of Justice, which South Korea rejected, believing that the Liancourt Rocks are irrefutably South Korean territories, and thus should not be dealt through diplomatic negotiations or judicial settlement between South Korea and Japan. There are conflicting interpretations about the historical state of sovereignty over the islets. Korean claims are partly based on references to a Korean island called "Usan-do" in various historical records, maps and encyclopedias such as the "Samguk Sagi", "Annals of the Joseon Dynasty", "Dongguk Yeoji Seungnam" (), and "Dongguk munheon bigo" (). According to the Korean
Korean Unification Flag Korean Unification Flag The Korean Unification Flag is a flag designed to represent all of Korea when North and South Korea participate as one team in sporting events. The background is white. In the center there is a blue silhouette of the Korean peninsula, including Jeju Island to the southwest, and Ulleungdo and the Liancourt Rocks to the east, added in 2003. In the 2018 Winter Olympics, Ulleungdo and the Liancourt Rocks were not included in the flag. There was a plan for North and South Korea to compete as one team at the 1990 Asian Games although such efforts