On any other day, this would be a highly amusing read. I'll just be blunt today; Europe isn't going to take over the world. World War III is not about to begin, and if it were, Europe would not be the instigators. So, relax.
I'm being presumptuous here, sure, but I'm mostly just being sarcastic. Europe isn't threatening the US. There is no reason for them to, and if they were foolish enough to do so, they would be hurting themselves far more than they could ever hurt America. The whole idea of it is asinine.