A look at the anti-tank weaponry used from WWII to the present day. At the beginning of WWII,the standard German anti-tank weapon was the little 37mm Pak 35 and 36,which could penetrate only one inch of sloped armour at 500 yards. By the end of the war,the supreme tank destroyer was the Jagdtiger,which had the ability to penetrate 10 inches at 1000 yards. Land mines could also be used with devastating effect,and took a heavy toll on the Sherman tanks,whose floor plates were only half an inch thick. During the Cold War,the Russians pitted the MIG-23 against the American F-4 Phantom and the high-speed Russian MIL-24 ground support helicopter against the agile German PAH-1. By the time of the Vietnam War,the McDonnell Douglas AH-64 Apache came into service and was still a vital element in the anti-tank missions during the Gulf War. The British contributed the vertical take-off Harrier which has proved itself an effective killer using 'smart' bombs as recently as Kosovo.