According to the Telegraph, Herman Van Rompuy says that Euroscepticism leads to war and a rising tide of nationalism is the European Union's "biggest enemy".
Somehow I don't see that the Swiss are attacking everyone around them, even though they are eurosceptic indeed and most male citizens even have a gun at home.
But I understand van Rompuy. He's concerned that the EU citizens aren't entirely happy with the way EU is being run, so it's time to shake up some controversy.
Hey, perhaps you could call the eurosceptics Nazis and declare they are enemy to the people? But this is a good start. Anyone who does not believe in a United States of Europe is a warmonger.