Kuril Islands Dispute: Russia–Japan Territorial Tensions

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Mehnat Aapki, Guidance Humari

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Kuril Islands Dispute: Russia–Japan Territorial Tensions

Why in News

Russian President Vladimir Putin visited Iturup Island on 13 August 2026, marking his first visit to the Russia-administered Kuril Islands claimed by Japan. Japan lodged a strong diplomatic protest, while Russia rejected Tokyo’s objections and reaffirmed its sovereignty over the islands.

Geographical Importance

The Kuril Islands are a volcanic island chain extending between Russia’s Kamchatka Peninsula and Japan’s Hokkaido. They separate the Sea of Okhotsk from the Pacific Ocean. The dispute mainly concerns the four southern islands—Iturup/Etorofu, Kunashir/Kunashiri, Shikotan and the Habomai islets. Russia administers them as part of Sakhalin region, while Japan calls them its Northern Territories.

Historical Background

The dispute has roots in nineteenth-century treaties. Under the Treaty of Shimoda, 1855, the boundary was drawn between Iturup and Urup. In 1875, Japan obtained control over the Kuril chain while Russia gained full control over Sakhalin. In 1945, Soviet forces occupied the southern islands during the closing stages of World War II. Japan and Russia have consequently never concluded a formal post-war peace treaty.

Stand of Russia and Japan

Japan maintains that the four islands are an inherent part of Japanese territory and were not legally surrendered as part of the Kuril chain. Russia argues that its sovereignty arose legitimately from the outcome of World War II. The 1956 Soviet-Japanese Joint Declaration envisaged transfer of Shikotan and Habomai after conclusion of a peace treaty, but the arrangement was never implemented.

Strategic Significance

The islands provide Russia strategic access from the Sea of Okhotsk to the Pacific, support its Pacific Fleet and possess valuable fisheries and mineral resources. Their military importance has increased as Russia strengthens its Far Eastern defence infrastructure.

Current Status

Relations worsened sharply after Japan imposed sanctions on Russia following the 2022 Ukraine invasion. Moscow suspended peace-treaty negotiations, while Japan retained its territorial claim. Putin’s 2026 visit and subsequent military activity have further hardened positions, making an early settlement unlikely.

Analytical Questions

1. Why has the Kuril Islands dispute remained unresolved for so many decades?

Answer: The dispute is not only about land. It involves history, national pride, security and access to the Pacific. Both Russia and Japan see compromise as politically costly. The islands also have military and economic value. Therefore, even when relations improve, the basic question of sovereignty remains very difficult to settle.

2. Why are the Kuril Islands strategically more important to Russia than their small size may suggest?

Answer: Their location is the key. They help Russia protect access from the Sea of Okhotsk to the Pacific Ocean. This supports its Pacific Fleet and wider defence posture. The islands also offer fishing resources and minerals. So, for Russia, giving them up would have security as well as economic consequences.

3. How has the Ukraine war affected the chances of solving the Russia–Japan territorial dispute?

Answer: The Ukraine war has made settlement much harder. Japan joined Western sanctions against Russia, while Moscow suspended peace talks. Trust between the two sides has fallen sharply. In this environment, territorial compromise becomes politically difficult. The dispute is now linked to a much wider breakdown in Russia’s relations with Western-aligned countries.

4. If you were advising Japan, would you recommend a hard position or a gradual engagement with Russia?

Answer: I would suggest a balanced approach. Japan should not abandon its legal claim, but it should keep channels of dialogue open. Joint economic activity, fishing arrangements and people-to-people contact can reduce tension. A final settlement may take time, so practical cooperation can help prevent the dispute from becoming more dangerous.

5. What broader lesson does the Kuril dispute offer for India’s foreign policy?

Answer: It shows that territorial disputes can continue for generations if they become tied to national identity and military security. India should therefore combine firmness on sovereignty with steady diplomacy. It should avoid letting every dispute block cooperation in other fields. Strategic patience, dialogue and practical arrangements are often more useful than public confrontation.