EB. This pro Stalin crap that you keep spewing out is starting to tick me off. The fact is that this lunatic murdered 30 million of his own people (19 million more than Hitler did). He was a buffoon, as well as a poor strategist. Unlike what you said Stalin did not purge his officers because they were poor commanders, he purged them because he was a paraniod pyscho.
In the summer of 41' soon after the Germans invaded the Soviet Union, many of its people particularly in the Ukaraine and the Baltic States viewed the Germans as liberators, entire armys surrendured to them without a fight, expecting fair treatment. It was only when horrific stories began to emerge about the attrocities that they were committing was when the the Soviets began to show their ressolve and willingness to fight drive the invader off their soil. The fact was that Russian people were not fighting for Stalin, they were fighting for their lives.
Germany was beating the Soviet Union up until late 1942 when their army in Stalingrad was encircled. They carried the initiative until July 1943 when they were defeated at the battle of Kursk. The fact was that the Soviet Union broke the stalemate in the East AFTER the Western Allies routed Rommel from North Africa and prepared to open up a new front in Southern Europe. In 1943 they were strengthening their bombing campaign which was begining to take a toll on the German Industry. It was not until the summer of 1944 AFTER the invasion of Western Europe when the USSR launched Operation Bagration in Poland that completely destroyed an entire German army group, which subseqently drove the Germans back to the borders of the Reich. Contrary to what you stated, the United States employed large forces Western Europe (1.5 million men)and the German army also had a large force their as well. Not to mention the cream of their army, their airborne and SS Panzer Armies. The Russian war effort was largely funded by the U.S as well. Notice all their jeeps, halftracks, trucks and Shermans that you see all of the Russian soldiers driving around in.