Stalin's Secret Armies

In 1942, while the German army was racing across Europe towards Asia, the Russian army had put up little, in some cases almost no realistic defense. When the Germans reached Stalingrad on the Volga, it looked pretty grim for the Russians. At that time, Stalin had Siberian troops guarding the boarder expecting a Japanese attack. When a spy told Stalin there would be no threat from the Japanese, the troops were released to fight at Stalingrad, and that’s what made the difference in winning or loosing that battle.