During the Cold War, the West was extremely careful not to allow the gap between the rich and poor to widen too far, first and foremost to counter communist depictions of the squalid masses in the West. But the same remains true today: If the West does nothing about the growing social inequities, it endangers its internal legitimacy.

When the newly formed middle class in China begins to perceive its interests and discovers the value of the rule of law, the existing power structure will lose its foundation. It is a process that no government can put a stop to in the long term. That also applies to some Arab countries, with some limitations. But we have to be patient. In the 1980s, nobody expected that the freedom movement in Poland would lead to the collapse of entire Eastern Bloc. That's why it would be a huge mistake were we to believe that authoritarian systems were indestructible.

In Ukraine, there has never been a consensus behind NATO membership. Even Yulia Tymoshenko was noncommittal when she was still prime minister. Georgia under President Mikhail Saakashvili pursued a rather aggressive stance, which stood in the way of its NATO membership. Given both states' unique relationships with Russia, concerns were justified that NATO membership would trigger Russia's reasonable fears of encirclement.

Germany is not the only country that one could call post-heroic. But there is an additional aspect for Germany when it comes to this generally Western stance - one which Vladimir Putin would call decadent. For almost four-and-a-half decades after World War II, we didn't have full sovereignty. During this period, we existed in a niche of global politics. This experience of limited sovereignty continues to have an effect. Many Germans still have sympathy for the idea that Germany can exist as something like a large Switzerland in the middle of Europe.

During the Cold War, the West was extremely careful not to allow the gap between the rich and poor to widen too far, first and foremost to counter communist depictions of the squalid masses in the West. But the same remains true today: If the West does nothing about the growing social inequities, it endangers its internal legitimacy.

Germans argue with the Americans about many things, from the death penalty to the relationship between security and freedom. We have to be honest about these differences. And yet, whenever we quarrel with the Americans, it amounts to controversies over different interpretations of values we share. You can't say that about Russia. Vladimir Putin fundamentally questions Western values.

In recent years, the largest parties have shied away from making clear statements about where they stand. That was a huge mistake. I very much welcomed the fact that German President Joachim Gauck spoke clearly at the Munich Security Conference and demanded that Germany become more engaged internationally.