Germany must continue to champion the world's biggest free single market, and under its leadership, the EU can overcome its internal differences.

The largest weight is now on Germany's shoulders. Chancellor Merkel must continue to convince people of the EU's importance; she must spearhead the effort to redefine the EU. In order to do this, Germany must become a muscular democracy. It needs to shoulder far more responsibility for the physical security of Europe, especially Eastern Europe and the Mediterranean. So far, unfortunately, Germany has taken the lead in disrespecting Europe's borders by opening its doors to more than a million refugees and migrants.

Germany must continue to champion the world's biggest free single market, and under its leadership, the EU can overcome its internal differences.

If there ever was a time for a cool, rational and unemotional series of responses on the part of people in Europe, it is now. One reason is that Russia's President Vladimir Putin and Trump are very similar: They are macho types, they are bullies - and they want the same thing: to weaken the EU, albeit for different reasons. Trump, for his part, is a protectionist of the first order, and he wants to make his vision work. He shows no interest in competition with others, but aims to go back to the 1930s.

German dominance in the EU is a fact of life. But for historical reasons, it would be the last country to be swept away by a populist wave. And one thing is certain: If Germany goes down, Europe goes down, and with it all the values which we thought are worth living for. Germany has to be the champion of these values.

The pacifist streak in German politics is a problem. But Greens and Social Democrats have to ask themselves: In an imperfect world, what do they prefer? The rise of the right or the success of the European project?

You won't find anyone in the UK who doesn't admire what Germany has become. The bilateral relationship between London and Berlin will become more important in the future, and the UK government wants Germany to grow stronger - for Europe's sake. It is in Britain's national interest that the EU succeeds, and Prime Minster Theresa May knows this.