Operation Citadel, the great German offensive designed to deliver a knockout blow against the salient at Kursk, was to prove the last great clash in the East. New machines such as the Elefant, took their blow and the trusty Panzer III came to the end of the line. Featuring 3D graphics, rare archived film and the unique insights of leading authorities on armoured warfare, this is a powerful insight into the greatest clash of armour in World War Two.