Russian President Vladimir Putin on Thursday (August 13, 2026) visited the Kuril Islands, a Russian-controlled Pacific island chain also claimed by Japan, for the first time, drawing protests from Tokyo.

Mr. Putin visited a fish plant, a hospital and a school on Iturup, one of the chain’s southernmost islands. He also briefly spoke to local residents and met with the governor of Russia’s Sakhalin region, Valery Limarenko.

Japan asserts territorial rights to the four southernmost islands of the chain, which it calls the Northern Territories. The Soviet Union took them from Japan in the final days of World War II, and the dispute kept the countries from signing a peace treaty formally ending their hostilities.

Decades of diplomatic efforts to negotiate a settlement haven’t produced any visible results. Moscow over the years has also beefed up its military presence on the Kuril Islands in moves that appeared to underscore its firm stance in the dispute.

Japanese Foreign Minister Toshimitsu Motegi said his country “strongly protests” against Putin’s visit to Iturup, which Japan calls Etorofu. “The Northern Territories, including Etorofu (Iturup) Island, are Japan’s inherent territory both historically and from the perspective of international law,” Mr. Motegi said in a statement.

Japan also protested in 2021 when Russia’s Prime Minister Mikhail Mishustin visited Iturup.

Mr. Putin in recent days has visited several regions in Russia’s Siberia and the Far East. Before coming to Iturup, the Russian president stopped on Sakhalin Island to attend the final part of the drills by Russia’s Pacific Fleet.

Speaking aboard a warship that was taking part in the naval exercises, Putin said on Wednesday (August 12) that the current status of the Kuril Islands “is enshrined in international documents as a reality that arose following the outcome of the World War II.” “But even here, Russia was prepared to seek a solution with the goal of concluding a peace treaty with Japan,” he said.

The Russian leader said that in the past, Moscow “had developed constructive relations with a number of Japanese leaders, including the tragically deceased former Prime Minister Shinzo Abe, who did much to bring Japan and Russia closer together, to align our positions.”

Mr. Putin said the position of Japan, which imposed sanctions on Russia after its sent troops into Ukraine in February 2022, has since changed.

Still, Russia is ready “to cooperate with all its neighbors, including Japan and other states in the region,” the Russian president said.