@Hanna
So, you're saying that Greece has entered the EU so as not to be attacked by France and Germany and vice versa?

You seem to make a logical mistake confusing between the major driving forces behind the inception and the major driving forces behind the sustainability and the expansion. How can you explain the foundation of the Euro currency? A major step to prevent France from assaulting Germany? That's laughable.

The present pan-European ideology postulates the external enemy (the US that is) and acts accordingly.