Japan Plans Cabinet-Level Attendance at Takeshima Day to Reinforce Dokdo Claim

Prime Minister Sanae Takai said she intends to create an environment that would allow a cabinet-level official to attend the Takeshima Day ceremony held by Shimane Prefecture on Honshu’s western coast. The remarks were reported during a session of the House of Representatives Budget Committee yesterday.

Takai told the panel that, someday, a minister-level representative could participate in Takeshima Day, not just the lower-ranking officials who have attended in the past. She also stressed the goal of clearly communicating to the international community that Dokdo, known in Japan as Takeshima, is Japan’s territory.

Last October, after Takai’s rise in the Liberal Democratic Party leadership contest, she said the government could send a cabinet-level official to Takeshima Day. In the event itself on October 22, the government sent an Administrative Vice Minister, Naoki Furukawa of the Cabinet Office, who repeated Japan’s claim that Dokdo is Japan’s territory both historically and legally.

Haruko Arimura, who holds one of the LDP’s top three posts—Secretary-General, General Secretary, and Policy Research Council Chairman—attended Takeshima Day as part of the party leadership lineup, marking the first time one of these top roles participated in the ceremony.

Japanese media framed the move as reflecting a stance aimed at improving Japan–South Korea relations, while noting potential backlash from conservative factions that oppose higher-level attendance at Takeshima Day.

For U.S. readers, the episode holds significance beyond Korea. The Japan–South Korea–U.S. triangle underpins regional security arrangements and deterrence in the Indo-Pacific. Where Tokyo and Seoul align on sovereignty disputes can influence trilateral defense planning, alliance cohesion, and how the United States coordinates on regional security challenges, including North Korea and broader economic and supply-chain considerations in East Asia.

Takeshima Day is hosted by Shimane Prefecture in western Honshu and centers on Japan’s claim to Dokdo, a pair of islets in the Sea of Japan. The islets are administered by South Korea but are disputed by Japan, a long-standing source of friction in Tokyo–Seoul relations.