ORIGINAL: seydlitz
In real life, had Japan attacked Russia as I have, Germany would have beaten Russia. During December 1941, the German army had essentially surrounded Moscow and were within sight of the city. Russia moved 30 divisions from this area across Siberia to counterattack. These were experienced troops, equipped for winter fighting, who had tested themselved in battle against the Japanese over the previous four years. Without their movement, Moscow would have fallen. So, even though I am going to have a tough go of it in the game I know that I will be helping my ally when the war with Russia, and that will increase my chances for a negotiated peace that also leaves me with control of the whole Asian co-prosperity sphere.
Those divisions (the so-called "Siberian Divisions") are not in the AE, they had left the Far East and Transbaikal much ealier (if I remember correctly, the last one had left in October 1941). STAVKA did not transfer the "Siberian Divisions" to the Western Front after Pearl Harbour but much earlier (the Battle of Moscow had already started before PH and it takes some time to move even one division from the Far East to Europe with the Transsib).
You are 'only' fighting the Soviet forces that actually were in the Far East/Transbaikal in December 1941 (and this includes some newly raised divisions as well as some 'old' divisions like 3rd and 22nd Rifle Divisions.















