Germany, France to jointly develop 'Leopard 3' tank – DW – 05/22/2015

Germany and France are considering cooperation on developing a successor to the tank "Leopard 2." The current model has been in service since 1979, and aging Bundeswehr equipment is currently in stark focus.

Germany orders 18 new Leopard 2 tanks to replace vehicles sent to Ukraine

Leopard 2 - Wikipedia

France and Germany Are Building a New Super Tank Together

Germany, France to Jointly Develop 'Leopard 3' Tank

Leopard 2 - Wikipedia

Germany, France to Jointly Develop Leopard 3 Main BattleTank 26051502, May 2015 Global Defense Security news UK, Defense Security global news industry army 2015

Signal to Russia – DW – 05/27/2015

Germany, France to Jointly Develop 'Leopard 3' Tank

Leopard 2 - Wikipedia