However, I could find a mistake about your website. The island you written about the article, Dokdo, not Takeshima is Korea's territory. There are a lot of reasons why, but let me introduce some of them briefly.
First, Since King Jijeung's rule, in 512, Dokdo is of how General Lee Sa-bu of Usan conquered the Korean territory since.
Second, the Japanese government in the late 19th century at the end of the 17th century, Ulleungdo and Dokdo as Korean territory in the world public.
Third, Allied military command to return to the Dokdo to Korea announced in January 1946.