Russian President Vladimir Putin conducted a visit to the island of Etorofu, which is known in Russia as Iturup. The island is part of the Southern Kuril chain, a territory that has been the subject of a long-standing sovereignty dispute between Russia and Japan since the end of World War II. During his visit, President Putin toured a local fish processing facility, an event that served to highlight Russia's ongoing administrative presence in the region.

In response to the visit, the Japanese government lodged a formal protest with Moscow. Tokyo maintains that the islands are part of its "Northern Territories" and considers any official Russian presence there to be a violation of its sovereignty. While Russia currently administers the islands, Japan has long sought their return as a prerequisite for a formal peace treaty between the two nations. The visit underscores the persistent diplomatic friction between the two countries, as neither side has shown a willingness to compromise on the territorial claims. The Independent reports that the visit is the first of its kind in recent high-level diplomatic cycles, though the outlet notes that the visit serves as a symbolic assertion of Russian control over the contested area.