Takeshima is Japan's own territory and belongs to Okinoshima-cho.
However, it has been illegally occupied by neighboring South Korea for well over half a century.
(For more details, see "About Takeshima" on this website.)
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The Japanese government advocates its territorial sovereignty over Takeshima through diplomatic channels and the websites of the Ministry of Foreign Affairs and the Japanese Embassy in South Korea, engaging with the problem peacefully but determinedly.
In March 2005, the Shimane Prefectural Assembly marked the 100th anniversary of the Shimane Prefectural Notice concerning Takeshima by designating February 22 – the day on which the Notice was published – as Takeshima Day.
The Shimane Prefectural Assembly had submitted a written statement urging the government to enact a Takeshima Day in law, believing that it would be essential to enlighten the nation in order to establish territorial sovereignty over Takeshima. But as the government made no move toward such enactment, the Assembly enacted its own Takeshima Day.
The intent behind Takeshima Day is to drive a movement uniting the prefecture's people, municipalities and government to push for the early establishment of territorial sovereignty over Takeshima and to enlighten the nation on the subject of the Takeshima Problem.