The AMX30 Char de Bataille was the standard French Main Battle Tank during the Cold War era. Initially the French and Germans attempted to develop a 'standard European tank' based on their experiences of the Second World War. Both countries required a design that put mobility and firepower foremost at the expense of armour protection, but the joint collaboration failed to materialise with the result that the French produced the AMX30 and the Germans the Leopard 1. The AMX30 was considerably lighter than its Anglo-Saxon contemporaries with a combat weight of 36 tonnes (hence its designation of AMX30). Again, unlike its NATO contemporaries that were armed with the British 105mm L7 gun, the AMX30 featured a smoothbore 105mm main armament firing a single type hollow-charge projectile - the OBUS-G - capable of defeating other battle tanks at normal combat ranges.