I recommend reading "Wages of Destruction". Historiography doesn't rely on just one person making a claim. That's just one small quote. The German war plans i

I recommend reading "Wages of Destruction". Historiography doesn't rely on just one person making a claim. That's just one small quote. The German war plans indicated that they simply didn't have the ability to sufficiently supply forces as far east as Moscow for a prolonged period of time. That the Soviet army was not utterly destroyed by the time the Germans go close to Moscow effectively meant there was no chance for a German victory. American food and trucks didn't arrive in vast numbers until well after the Moscow 1941 campaign. America helped end the war sooner than it would have ended had it just been the Germans vs. the Soviets but America was not the reason for victory in Europe.