Soviet occupation of Manchuria


The Soviet occupation of Manchuria took place after the Red Army invaded the Japanese puppet state of Manchukuo in August 1945 and would continue until the last of the Soviet forces left in May 1946.

History

On February 11, 1945, the Big Three signed the Yalta Agreement, which obligated the Soviet Union to enter the war against Japan within three months after Germany's surrender in exchange for territorial concessions and Soviet influence in post-war Manchuria.
True to his word, Stalin would order the invasion of Manchukuo on August 9, 1945, which broke the 1941 pact between the two countries and inaugurated in one of the largest campaigns in the Second World War. The massive and battle-hardened Red Army not only steamrolled into Manchuria, brushing aside scattered Japanese resistance, but they liberated Mengjiang, southern Sakhalin, and the northern half of the Korean peninsula as well. The rapid defeat of the Kwantung Army in Manchuria, along with the recent atomic bombing of Hiroshima and Nagasaki by the Americans, contributed significantly to the Japanese surrender on the 15th.
The invasion, along with the surrender, prompted the Kuomintang to jockey for position vis-a-vis the Chinese Communists in mainland China. They did so by signing a Treaty of Friendship and Alliance with the Soviet Union on August 14, 1945, which affirmed Chinese sovereignty over Manchuria in exchange for Chinese recognition of the Soviet-aligned Mongolian People's Republic. The Soviets began withdrawing from Manchuria within three weeks of Japan's surrender—although they would delay the process several times. The resumption of the Chinese Civil War in early 1946 prompted the Red Army to finish the withdrawal, but not before secretly turning Manchuria over to the Chinese Communists in March in violation of the Agreement.

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