The Kampfpanzer Leopard 1 (also styled Leopard I, before the Leopard 2 simply known as the Kampfpanzer Leopard) is a main battle tank designed by Porsche and manufactured by Krauss-Maffei in West Germany, first entering service in 1965. Developed in an era when HEAT warheads were thought to make conventional heavy armour of limited value, ...