I think the point is that France, Germany and the UK (and all of Europe) used to engage in wars of conquest constantly throughout history. After WWII the victo

I think the point is that France, Germany and the UK (and all of Europe) used to engage in wars of conquest constantly throughout history. After WWII the victors decided that needed to stop and they decided to trust each other and get along. For some countries, peace is more important than trying to redraw borders through force.