Trotskyite Soviet Union

With the deposition of Stalin by Lenin on his deathbed, Leon Trotsky rises to power in the Soviet Union. With the rise of a militarist Germany, the soviet union invades, pushing through Memel and Poland to smash towards berlin in 1939. Hitler is exiled, and a puppet regime is set up in Germany. Underground anti-soviet movements still continue in the east, and the west prepares for war as soviet troops mass on the french border...