If you really want to make life easy for GER, wait until about 2 months before Barbarossa, then declare a private war on the Soviets. That should put most of the Soviet army in transit between west and east, and in no position to oppose Germany's offensive until they arrive in the Far East, then Strategically Redeploy all the way back to the west again.I'll just prepare for the next 8 months as if they will. Otherwise try a limited was on SOV and see whether GER decides to join?
Normally, I'd consider that a bad idea, since GER won't be able to encircle and destroy half of the Soviet army on the border, but the AI wouldn't do that anyway, merely push the SOV units back until they recover ORG and move back onto the front lines, repeated ad nauseum until either GER runs out of Manpower or SOV runs out of room to backpedal and GER takes Moscow.
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