>Franco-German friendship exemplified by Mitterand-Kohl personal friendship
Ironic to call this a "friendship", when Mitterand along with Thatcher were working behind the scenes with the soviets to sabotage and stop Kohl's reunification of Germany. It was anything but a friendship, but more of a concession.
Politics is full of such examples that look friendly to the public, but hide a lot of sabotage and back stabbings in the background. In fact, the later is the norm in politics.
Maybe you can be friends without always agreeing, and even when competing.