Where were you when the Berlin Wall was torn down? All of us in Europe who experienced November 9, 1989 can answer this question. When East and West Germans embraced each other with tears of joy 30 years ago, this did not only spell the end to the division of Germany. When the Wall came down, the Iron Curtain – which had divided our continent for 40 years – was also torn.

We Germans, therefore, not only celebrate the fall of the Wall on November 9, but we celebrate the courage with which people throughout Central and Eastern Europe fought for freedom and democracy. We celebrate a Europe that – but for a few exceptions – is united to its good fortune.

We Germans know whom we have to thank for this good fortune, namely the hundreds of thousands of East Germans who took to the streets to protest for freedom. We also owe this to the Gdansk shipyard workers, the singing revolutionaries in the Baltic countries, the Hungarians who were the first to cut through the Iron Curtain. We are indebted to the pioneers of Charter 77 in Prague, those who took part in the Candle Demonstrations in Bratislava, the revolutionaries of Timișoara.

In other words, all the women and men whose desire for freedom swept away walls and barbed wire. And we have our friends and Alliance partners in the West, as well as Gorbachev’s policy of glasnost and perestroika, to thank for this, paving the way to reunification.

In 1989, Malta interpreted the signs of the times correctly, and, as the host of the ground-breaking summit held by Presidents Bush and Gorbachev, it made a major contribution to the process of détente.

German unity was also a gift from Europe to Germany at the end ofa century in which Germans had brought unimaginable suffering to this continent.

The autumn of 1989 showed what we Europeans are capable of when we think and act beyond national borders

This gives rise to an obligation for us, namely, to complete the project of the unification of Europe – building a Europe that lives up to the values and dreams of those who took to the streets in 1989 to fight for freedom and democracy. We want to work towards this too when we assume the EU Presidency next year, 30 years after reunification.

Saving the euro and the endless disputes about taking in and distributing refugees have opened up new rifts in Europe. With Brexit, we are seeing a country leave the EU for the first time. What is more, in many countries of Europe, people are flocking to side with those individuals who would have us believe that less unity in Europe is better for us.

However, it is clear that we will only be able to hold our own in the world if we Europeans stand united. After all, none of us can cope with the four major worldwide challenges – globalisation, climate change, the digital transformation and migration – by ourselves.

Exhortations from individual European capitals fall on deaf ears in Moscow, Beijing and, unfortunately, also in Washington DC to an increasing extent.

It is only Europe’s voice that carries decisive weight. This is why unilateral action at the national level must finally be taboo in Europe.

We must work together to formulate and implement a European policy vis-à-vis countries such as Russia and China. For this, we need more effective European diplomacy, and, above all, flexibility from all of us. If we pursue 27 different national approaches, we will fail.

Together, we must do more to defuse the conflicts in our neighbourhood – in the Donbass, in Syria and in Libya.

We must strengthen Europe’s instruments for peaceful conflict resolution in order to do this. Moreover, we need a genuine European defence union alongside NATO that is able to act independently where necessary.

Together, we must fight to preserve the international order and become the heart of an alliance for multilateralism. After all, peace, also in Europe, depends on preserving this order.

We must assume a leading role in efforts to protect the climate. We need courageous political decisions and genuine efforts in society to make our continent climate-neutral by the middle of this century. If we do not manage to do this, then we will put our children’s future in jeopardy.

Together, we must strengthen Europe’s economy in order to avoid being crushed in the trade dispute and in the technological competition between China and the US. The next EU budget must therefore be a budget of the future that invests in research, high tech and the digital transformation. This is the only way to safeguard Europe’s prosperity.

We must ensure that our Union remains united on the domestic stage. Europe is strong when it offers its citizens social security, when not only its economic, but also our social standards, converge. And Europe is strong when we respect and uphold values such as the rule of law.

The autumn of 1989 showed what we Europeans are capable of when we think and act beyond national borders – the power that we have when we stand up for freedom and democracy and for the rule of law and justice, the power to overcome walls and borders; the power to assert our values and interests in an increasingly authoritarian world.

This world needs Europe’s courage to embrace freedom – the courage of 1989. Let us dare at long last to be Europeans, to act as Europeans – without any ifs or buts!

Heiko Maas is the Minister for Foreign Affairs of the Federal Republic of Germany.

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