We [European countries] probably need to move forward together, each at their own speed. The faster ones, that could be the countries in the euro zone. The others would be those who are interested in the continued development of the common market, but reject the idea of an ever stronger political integration.

But it could be that we, as early as spring, will need to embark on a new policy in order to save one of the cornerstones of European politics: personal freedom of movement.

It is ridiculous to believe that Greece might be taking in one million migrants, registering them, then giving refuge to those who have a right to asylum and sending everyone back that does not. Greece is not doing that. We can blame the Greeks for that, but at the same time we should change the Dublin Regulation. When we insist on this unrealistic procedure, it means nothing more than that we are defending Dublin while renouncing Schengen.

We need to move forward, from the common currency to the banking union to a common financial policy and, in the middle-term, to a common foreign and security policy. That will take time, because we need to figure out how to deal with those countries that don't always want a more tightly integrated European Union.

And a united Europe will also manage to send hundreds of thousands of migrants, who don't have the right to asylum, back to their homelands. Though that, given the number of flights necessary, would be of a scale reminiscent of the Berlin Airlift.

We have a strong military deployment in Iraq and Afghanistan. In countries like Syria, we need a diplomatic breakthrough to end the war. In Libya, the country must first of all be stabilized to stop IS. This means supporting the Libyan government, including in terms of security. We don't want to repeat the mistakes of the past in that country. The situation is extremely dangerous and the next days could be decisive.

There are differences of opinion, especially when it comes to economic and financial policy. But when it comes to foreign and especially immigration policy, we are in agreement. No other countries in Europe are closer to each other in this regard than Italy and Germany.