USSR never invaded Manchuria, Japan did from 1931-33
Hitler did invade the USSR on 22 June 1941.
Starting in 1931 Japan invaded the North Eastern part of China including Manchuria and bordered by the USSR. Please see the related question below.
June 22, 1941
During the early part of World War Two, the distance of Japan was so far from the US that the Pacific Ocean protected Japan from invasion. The Chinese had no chance to invade Japan and the USSR had an agreement not to engage in combat until the very last days before Japan's surrender.
To make USSR think that Hitler wouldn't invade USSR. But Hitler did invided USSR.
The USSR was expected to invade Germany at any time during the Cold War, which took place between 1945 and 1990 - although as it turns out, they never did.
All production was still in germany. And it would take alot of power to invade all those countries just to invade the USSR
After ww2 america had more manpower and economy compared to the ussr, America could have easilly defeated the ussr at any point, as well as the USSR was a primary agressor in ww2 by invading finland and poland. The fact that america wouldnt invade them then was proof that the government was compramised even back then.
The secret Operation Barbossa.
invade korea and fight against ussr
central aisa