Japan has long recognized the existence of Takeshima. There is no basis for the claim that Korea has long recognized Takeshima. Japan established its sovereignty over Takeshima in the mid-17th century. Japan banned passage to Utsuryo Island at the end of the 17th century, but did not ban passage to Takeshima. Korea cites the false testimony of An Yong-bok as one of the grounds for its sovereignty. Japan reaffirmed its intention to possess Takeshima by cabinet decision in 1905. When the San Francisco Peace Treaty was drafted, Korea requested the United States to add Takeshima to the areas that Japan should abandon, but was refused. Takeshima was designated as a bombing training area for the U.S. military in Japan. Korea drew the so-called "Syngman Rhee Line" on the high seas in violation of international law, and unilaterally occupied Takeshima. Japan has proposed that Korea refer the matter to the International Court of Justice (ICJ), but Korea has refused.
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