Liancourt Rocks From Wikipedia, the free encyclopedia The Liancourt Rocks are a group of small islets in the Sea of Japan. While South Korea controls the islets, its sovereignty over them is contested by Japan. South Korea classifies the islets as Dokdo-ri, Ulleung-eup, Ulleung County, North Gyeongsang Province, and calls them Dokdo (Korean pronunciation: [tok̚.t͈o]; Korean: 독도; Hanja: 獨島, "soli..