“The defeat at Moscow indicated that Operation Barbarossa had failed and Germany could not win the war on terms Hitler expected. The Red Army’s victory at Stalingrad proved that Germany could not win the war on any terms. Later, in the summer of 1943, the immense Battle of Kursk would confirm that Germany would indeed lose the war. The only issues remaining after Kursk were, ‘How long would that process take, and how much would it cost?’ ” – David M. Glantz, The Soviet-German War, 1941-1945: Myths and Realities