During the Soviet period, the Zhanggufeng incident 1938 occurred in the Soviet Union and Japan. Battle of Nomenkan 1939. Battle of the Far East 1945.
After the disintegration of the Soviet Union, Russia and Japan did not sign any treaties. The two sides wanted to sign a "peace treaty", but because of the entanglement of the Kuril Islands issue, they signed an abortion.
After the disintegration of the Soviet Union, there was no war between Russia and Japan.