In summer 1943, Germany and the Soviet Union fought the arguably biggest single battle in history with millions of men, thousands of tanks and artillery guns – the battle of Kursk. The German Army wanted to hit the Red Army so hard that they couldn’t go on the offensive again. And indeed, new research shows that the Soviets suffered shockingly high casualties, up to 6 times more men and equipment. But why then did the Germans lose this historic battle?