USSR never invaded Manchuria, Japan did from 1931-33
Hitler did invade the USSR on 22 June 1941.
In December of 1979.
June 22, 1941
Because, as others such as Napoleon found out, you just should try to invade Russia. Everyone who has invade it loses.
To make USSR think that Hitler wouldn't invade USSR. But Hitler did invided USSR.
The USSR invaded Afghanistan in 1979.
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.
June 22,1941. It was called Operation Barbarossa.
The secret Operation Barbossa.
June 22, 1941 - assuming that your question was intended to be in the past tense (since the USSR no longer exists).
invade korea and fight against ussr
Starting in 1931 Japan invaded the North Eastern part of China including Manchuria and bordered by the USSR. Please see the related question below.
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.
Operation Barbarossa was Hitler's plan to invade the USSR. It was, and still is, the largest land invasion in history.
Stalin worried Japan would attack the USSR on the east end of the country. He did not neet to be enticed to fight against Japan. He wanted to be the one who defeated them.
Hungary and Czechoslovakia