The Turks know that if they want to join the EU, then they must respect our rules. We are a union of beliefs, not a bunch of squawking chickens. But if we continue talks with Erdogan, that doesn't mean we have to bow down to him.

Here in Brussels, we did everything to accommodate David Cameron's concerns. My collaborators and I personally spent countless days and nights negotiating an agreement that was fair toward the United Kingdom and toward the other 27 Member States. I was then very surprised to see that this settlement played no role whatsoever in the campaign in the United Kingdom. At the same time it is hardly surprising.

How will the exit affect thousands of British pensioners living in Portugal or Spain who will lose their access to the welfare and health systems? Fifty-three free-trade agreements, which were negotiated by the EU on behalf of all Member States, are also hanging in the balance for the UK.

The will of the British people must now be put into effect as quickly as possible. Under Article 50 of the EU Treaty the UK must leave the European Union within two years at the latest.

In 1913 many believed that there would never again be a war in Europe. The great powers of the continent were so closely intertwined economically that the view was widespread that they could no longer afford to have military confrontations.

When it becomes serious, you have to lie.

Trump knows that he is encountering a complete lack of understanding in Europe, but it's apparent that he's not very impressed by it. My experience, however, has been that American presidents take a greater interest in Europe over the course of their term.