日ソ中立条約
In the same year, the USSR, in fulfilment of its agreement with the Allies at the Yalta Conference, denounced the Soviet–Japanese Neutrality Pact in April 1945 and invaded Manchukuo and other Japan-controlled territories on 9 August 1945. This conflict ended with a decisive Soviet victory, contributing to the unconditional surrender of Japan and the end of World War II.