Takeshima Research and Commentary Site

The documents and materials published on this website were collected, researched, and prepared with advice from experts, as a part of a Government-commissioned project. The contents of this website do not reflect the views of the Government. Links to external sites (domains other than https://www.cas.go.jp) are not under the management of this site. For linked websites, please check with the organization/group that manages the website for the link in question.

Basic Position of the Government of Japan

 Takeshima is indisputably an inherent part of the territory of Japan, in light of historical facts and based on international law.
 The ROK has been occupying Takeshima with no basis in international law. Any measures the ROK takes regarding Takeshima based on such an illegal occupation have no legal justification.
 Japan will continue to seek the settlement of the dispute over territorial sovereignty over Takeshima on the basis of international law in a calm and peaceful manner.

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Commentary on themes by historical period From the report
on the document research project

Classification by historical periods I
After the OYA family and MURAKAWA family began traveling to Utsuryo Island and Takeshima with permission from the shogunate (Edo era)

(1) Passage to Utsuryo Island and Takeshima by the OYA family and MURAKAWA family

(2) Understanding of Takeshima

Classification by historical periods II
From around 1905 when Takeshima was incorporated into Shimane Prefecture until the end of WWII (Meiji era to -1945)

(1) Request for the lease of Takeshima and its incorporation into Shimane Prefecture

(2) Peaceful and continuous exercise of administrative powers over Takeshima

(3) Investigations and administrative publications on Takeshima

Classification by historical periods III
Post WWII, before and after the San Francisco Peace Treaty entered into force 1945-1952

(1) GHQ's measures relating to Takeshima

(2) Details of the drafting of the San Francisco Peace Treaty

(3) Moves towards the use of Takeshima after WWII

Classification by historical periods IV
After the issuance of the declaration concerning “maritime sovereignty” by the President of South Korea From January 1952 ~

(1) South Korea’s illegal occupation of Takeshima, and intense exchange of notes verbales between Japan and South Korea

(2) Understanding of the United States and the United Kingdom on the territorial sovereignty of Takeshima

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Expert commentaries on the various issues
Archive of documents and materials
An archive of documents and materials prepared under the document research project commissioned by the Government of Japan
Commentary videos
Videos with easy-to-understand commentaries on each theme