After Stalingrad, the initiative had passed from Germany but had not yet been seized by the Soviets. A desperate counterattack in the spring of 1943 by forces of Field Marshal Erich von Manstein temporarily halted the Soviet advance. The Battle of Kursk was the last major offensive by the German Army on the eastern front. The Soviets had intelligence of what was to come and prepared massive defenses in huge depth in the Kursk salient. They stopped the German armored assaults after a maximum penetration of just over . After Kursk, the Red Army got the upper hand and generally was on the offensive for the rest of the war. The large scale of the Soviet Union allowed it to overcome high losses in manpower and equipment. The Soviet success prompted a more successful Allied initiative on the Western Front of Europe because Nazi Germany was bogged down in a costly defensive war on the East, defending its ever-shrinking occupied territory.