Russian President Vladimir Putin traveled to Iturup, an island within the Kuril chain, marking a rare visit to a territory that remains the subject of a long-standing sovereignty dispute between Moscow and Tokyo. The islands, referred to as the Northern Territories in Japan and the Southern Kurils in Russia, were seized by the Soviet Union during the final days of World War II. This territorial disagreement has prevented the two nations from signing a formal peace treaty to officially end their wartime hostilities.

The Japanese government responded to the visit with strong diplomatic pushback. According to The Guardian, Prime Minister Sanae Takaichi labeled the visit "absolutely unacceptable," and the Japanese Foreign Ministry took the step of summoning the Russian ambassador, Nikolay Nozdrev, to express their official condemnation. France24 also reported on the protest, noting that Tokyo's reaction was immediate and firm. While both outlets agree on the core facts of the visit and the resulting diplomatic friction, they differ slightly in their presentation of the political context. The Guardian provides additional historical background regarding the Soviet Union's seizure of the islands and the subsequent impact on diplomatic relations, whereas France24 focuses primarily on the immediate event and the direct quote from Japanese officials.