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| Japan–South Korea | |
|---|---|
| Country1 | Japan |
| Country2 | South Korea |
| Established | 1965 (Treaty on Basic Relations between Japan and the Republic of Korea) |
| Major issues | Comfort women, Liancourt Rocks, 2019 trade dispute, Yasukuni Shrine |
Japan–South Korea
Japan and South Korea maintain a complex bilateral relationship shaped by historical legacies, strategic imperatives, and deep social ties connecting Tokyo, Seoul, Osaka, Busan, Yamaguchi Prefecture, and Jeju Province. Relations involve frequent interactions among officials from the Prime Minister of Japan, the President of South Korea, ministers from the Ministry of Foreign Affairs (Japan), and the Ministry of Foreign Affairs (South Korea), as well as multilateral coordination through United Nations, G7, ASEAN Plus Three, Asia-Pacific Economic Cooperation, and United States–Japan security alliance frameworks.
The modern bilateral relationship traces roots to the Meiji Restoration period, the Japan–Korea Treaty of 1876, the Korean Empire, and the Japan–Korea Annexation Treaty of 1910, which led to colonial rule contested during the March 1st Movement and addressed after World War II by the Surrender of Japan, the Cairo Conference, and the Treaty of San Francisco. Postwar interactions were influenced by the Korean War, the Kim Il-sung era in North Korea, the Syngman Rhee and Park Chung-hee administrations in South Korea, and normalization under the Treaty on Basic Relations between Japan and the Republic of Korea negotiated by figures such as Kakuei Tanaka and Park Chung-hee. Subsequent decades saw diplomatic tensions during the Yasukuni Shrine visits, controversies over Comfort women, and reconciliation efforts exemplified by the 1998–1999 Japan–South Korea Joint Declaration and the 2015 agreement on comfort women.
Bilateral diplomacy has alternated between strategic partnership and public contention involving visits from the Prime Minister of Japan to Seoul and summits between the Emperor of Japan and the President of South Korea, third-party mediation by the United States, trilateral meetings with China and Russia, and diplomatic friction in forums such as the United Nations General Assembly and East Asia Summit. High-level exchanges feature negotiators from the Ministry of Foreign Affairs (Japan), the Ministry of Foreign Affairs (South Korea), ambassadors resident in Tokyo and Seoul, and interactions with multilateral institutions like the World Trade Organization and International Court of Justice on legal disputes.
Economic ties link conglomerates and firms such as TOYOTA, Hyundai Motor Company, Sony, Samsung Electronics, Mitsubishi, LG Electronics, Sumitomo, and POSCO, and involve trade agreements, supply-chain integration in semiconductors, and investment flows tracked by the World Bank, International Monetary Fund, and Organisation for Economic Co-operation and Development. Trade frictions surfaced during the 2019 trade dispute over export controls, influenced industrial policy discussions linked to Ministry of Economy, Trade and Industry (Japan) measures, South Korean responses from the Korea International Trade Association, and legal action in the World Trade Organization.
Security cooperation encompasses trilateral coordination with the United States under the United States-Japan Security Treaty and the U.S.–ROK alliance, joint responses to North Korean missile tests under the United Nations Security Council, information sharing among the Japan Self-Defense Forces, the Republic of Korea Armed Forces, and participation in exercises like Keen Sword, Foal Eagle, and multinational maritime patrols addressing Piracy and North Korean nuclear program contingencies. Defense-industrial linkages involve companies such as Mitsubishi Heavy Industries and Hanwha, and regional security dialogues in formats including the Trilateral Coordination and Oversight Group and the Six-Party Talks legacy.
Cultural exchange flows through popular culture, academic links, and people-to-people contact represented by Korean Wave, J-Pop, K-Pop, collaborations between NHK, KBS (Korean broadcaster), university partnerships among Seoul National University, University of Tokyo, student exchanges under the Fulbright Program, and tourism between Kansai International Airport and Incheon International Airport. Cultural diplomacy includes museum loans featuring artifacts from Silla, Baekje, Kofun period, and contemporary exhibitions involving institutions like the National Museum of Korea and the Tokyo National Museum.
Historical disputes center on wartime legacy issues such as Comfort women, forced labor cases involving Nippon Steel and Mitsubishi Heavy Industries, textbook controversies engaging Ministry of Education, Culture, Sports, Science and Technology (Japan), and court decisions from the Supreme Court of Korea. Reconciliation efforts include the 1993 Kono Statement, the 2015 agreement on comfort women, compensation schemes debated in litigation like the 2018 South Korean court ruling on forced labor, and civil society initiatives involving groups such as The Korean Council for Justice and Remembrance for the Issues of Military Sexual Slavery by Japan and NGOs engaged at the International Criminal Court and UN Human Rights Council.
Territorial disputes focus on the Liancourt Rocks (known as Dokdo in Korea and Takeshima in Japan), maritime delimitation in the Sea of Japan / East Sea, fisheries conflicts involving coastal communities in Tohoku, Gyeongsang Province, and enforcement actions by the Japan Coast Guard and the Korea Coast Guard. Diplomatic protests and legal claims have appeared in bilateral talks, incident responses involving coast guard vessels, and mapping controversies reflected in national textbooks and statements from cabinets in Tokyo and Seoul.