A united Europe is our Continent's only chance to avoid falling off the world's radar. The heads of government of Germany, France and the United Kingdom also know that their voice is only heard internationally because they speak through the megaphone of the European Union.

I am a champion of trans-Atlantic relations and I do not believe there is any other option available to us than working closely together with America - including Canada. There is no other alliance option, but the same is true for the U.S.

I'm ready to be insulted as being insufficiently democratic, but I want to be serious ... I am for secret, dark debates.

The position of EU commissioner for economic and monetary affairs could be combined with the office of Euro Group chairman. That job would be a great challenge for anyone who assumed it. On the one hand, he would have to make proposals. On the other hand, he would have to negotiate compromises with his European counterparts.

The way some German politicians have lashed out at Greece when the country fell into the crisis has left deep wounds there. I was just as shocked by the banners of protesters in Athens that showed the German chancellor in a Nazi uniform.

I completely agree with Helmut Kohl. I am not an advocate of the "United States of Europe," nor am I an integration fanatic.

I have no doubt that the U.S., even under Trump, will stick to the mutual defense commitment in the NATO treaty in the event of an emergency. Trump described NATO as being obsolete during his election campaign, but he made clear afterward that he considers the alliance to be an indispensable necessity.