The design started as a collaborative project during the 1950s between West Germany and France, and later joined by Italy,[1] but the partnership ended shortly after and the final design was ordered by the Bundeswehr, with full-scale production starting in 1965. In total, 6,485 Leopard tanks have been built, of which 4,744 were battle tanks and 1,741 were utility and anti-aircraft variants, not including 80 prototypes and pre-series vehicles.
The Leopard quickly became a standard of European forces, and eventually served as the main battle tank in over a dozen countries worldwide. Since 1990, the Leopard 1 has gradually been relegated to secondary roles in most armies. In the German Army, the Leopard 1 MBTs were phased out in 2003, while Leopard 1 derived vehicles are still widely used. The Leopard 2 MBTs have taken over the MBT role. Leopard hulls have been re-used in a wide variety of roles.
