An entire country whose prosperity is built on helping druglords, arms traffickers, warmongerers, corrupt politicians and dictators stash their illicit money in its banking system. We are all accomplices to its "neutrality" though. The EU should have kicked the Swiss ass a long time ago.
In the words of famous writer and holocaust survivor Elie Wiesel:
We must take sides. Neutrality helps the oppressor, never the victim. Silence encourages the tormentor, never the tormented.
The pencil-pushing bureaucrats in Brussels are well aware of the threat. It is just that they chose to play dumb that you cannot win a real war with staplers and paperwork. So we will find out the hard way that the EU has no real, unified army. When you depend on someone else putting boots on the ground for you, it is a matter of time before you find out the hard truth. We will cross that point on Jan 20th when the Donald assumes duty.