Can Nikita redpill us about Cudder?

The leaders of the three great powers – the Soviet Union, the United States of America and Great Britain – have agreed that in two or three months after Germany has surrendered and the war in Europe is terminated, the Soviet Union shall enter into war against Japan on the side of the Allies on condition that: [....] 2. The former rights of Russia violated by the treacherous attack of Japan in 1904 shall be restored, viz.: (a) The southern part of Sakhalin as well as the islands adjacent to it shall be returned to the Soviet Union; [....] 3. The Kurile Islands shall be handed over to the Soviet Union.

Japan and the US claimed that the Yalta agreement did not apply to the Northern Territories because they were not a part of the Kuril Islands, although US geographers have traditionally listed them as part of the Kuril chain.