Recently, two notable studies have been reported in relation to the Japanese Society of International Law. First, the Takeshima documents study group, which has claimed Japan s sovereignty over Korea s Dokdo, is openly researching the Daijokan directive, which can be said to be the Achilles heel of its sovereignty claim over Dokdo. Second, the issue of the theory of protectorate related to the Korea-Japan Treaty of 1905, which has been debated several times and remains controversial, is being discussed again. The key themes of both are the invasion of Dokdo and the Korea-Japan Treaty of 1905, ultimately both pointing to 2025. Moreover, it is noteworthy that 2025 marks the 120th anniversary of Japan s invasion of Dokdo and the coercion of the treaty by Japan, and that such discussions are being led by the Japanese Society of International Law.