Yes and in this scenario Japan attacks Russia instead of the USA. Perhaps it would attack the Dutch East Indies and Malaya, but otherwise concentrate on the Soviets. The US might have joined the war, but most likely not for a while. With less pressure on Germany, more of her troops could be sent to Russia. With Japan attackings, troops that would otherwise be used elsewhere would be diverted, whether the assault made any progress or not. I think the Soviet Union might have collapsed....