What are u dillusional Stalin was moving his factories to Siberia so that they could continue its fight against Germany and Siberia was out of the reach of Nazi bombers.I dont know where you get this mass amount of armor came from the states which is bullshit it wasnt the sherman tank that defeated the germans it was the superior T-34 TANK.Do u even know how many tanks and planes the British and Americans sent to germany?Well i do and it was a fraction of what the Riussians produced for instance in 1942 the Russians produced 12527 T-34 tanks in 1943 they produced 15821 T-34 and in 1944 they produced 14648 T-34 tanks.In comparision the Americans sent 4200 M4A2 TANKS to Russia.Now lets talk about facts 80% of German forces was destroyed fighting the Russians the other 20% that the Allies destroyed consisted mostly of Hitler-Jugend and local militia.If you check the list of German casualties on the western front you wont find any elite corps their.The Africa operation is different but in Africa Hitler used obsolete equipment because he had little abilities to reinforce them.So in conclusion yes the Allies did send equipment and lots of it but it was the Russian soldier and the Russian tank that defeated the best army in the world.By 1943 the Germans were retreating and the Russians where not stopping until they reached Berlin.