If Germany has its advance into France stopped at the last moment in 1940 and the result is a war of attrition that effectively destroys both sides, what moves does the Soviet Union make?
Do they take all of Finland and Romania? If so, do they advance into the Balkans and Sweden later while the war is still going on? Do they make moves against Turkey or Manchuria?
Do the Soviets attack the eventual winner? If the war ends with the Soviets occupying half of Europe and Britain/France in the other half, will Communist Parties see a significant increase in influence?
Do they take all of Finland and Romania? If so, do they advance into the Balkans and Sweden later while the war is still going on? Do they make moves against Turkey or Manchuria?
Do the Soviets attack the eventual winner? If the war ends with the Soviets occupying half of Europe and Britain/France in the other half, will Communist Parties see a significant increase in influence?