On August 8, 1945, three months after Nazi Germany surrendered, and on the week of the American Atomic bombings of Hiroshima and Nagasaki, the Soviet Union launched the invasion of Manchuria, a massive military operation mobilizing 1.5 million soldiers against one million Kwantung Army troops, the last remaining Japanese military presence. Soviet forces won a decisive victory while the Kwantung suffered massive casualties, with 700,000 having surrendered. The Soviet Union distributed some of the weapons of the captured Kwantung Army to the CCP, who were still battling the KMT in the Chinese Civil War.