In the past, Germany could rely on the French, the British and, especially, the Americans, to assert our interests in the world. We have always criticized the U.S. for being the global police, and it was often appropriate to do so. But we are now seeing what happens when the U.S. pulls back. If the U.S. leaves the room, other powers immediately walk in. In Syria, it's Russia and Iran. In trade policy, it's China. These examples show that, ultimately, we are no longer achieving either - neither the dissemination of our European values nor the advancement of our interests.

We, the Social Democrats, are convinced that capitalism needs to be tamed a second time. The first time we achieved that in Germany for many decades with the social market economy. That is no longer enough. Now we need to do it in Europe and even globally.

The truth is that we have long had a multi-track Europe with very different objectives. The traditional differences between the north and the south in fiscal and economic policy are far less problematic than those that exist between Eastern and Western Europe. In the south and east, China is steadily gaining more influence, such that a few EU member states no longer dare to make decisions that run counter to Chinese interests. You see it everywhere: China is the only country in the world that has a real geopolitical strategy.

However, I have a low opinion of people with narrow political horizons. Someone who talks about the environment and knows nothing about economics can make as many mistakes as someone who does the opposite.

The shadow of an exit of Greece from the euro zone takes on ever clearer shape, repeated apparently final attempts to reach a deal are starting to make the whole process look ridiculous. There is an ever greater number of people who feel as if the Greek government is giving them the run-around.

Countries that work with Europe should feel safer than they would if they worked with non-democratic regimes. Why isn't Europe building infrastructure in Africa instead of leaving it to the Chinese? Why haven't we succeeded in promoting the economic development of our neighbors in the Balkans, instead conceding these countries to growing Russian influence? In an uncomfortable world, we Europeans can no longer sit back and wait for the U.S.A.

Finding the right form of debate regarding Israeli policies will remain a challenge in Germany. Even with every conceivable and warranted criticism, the danger always arises that it will be exploited by those who consciously or unconsciously present anti-Semitism in a new guise.