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How the Two-plus-Four Treaty reshaped Germany and Europe's future

A historic deal ended decades of division and redefined Europe's security. Discover how political courage and diplomacy forged Germany's reunification—and its lasting impact today.

The image shows an old book with two certificates on it, each with text and stamps. The...
The image shows an old book with two certificates on it, each with text and stamps. The certificates appear to be from the Soviet Union, with the text likely indicating the names of the people involved in the conflict.

How the Two-plus-Four Treaty reshaped Germany and Europe's future

The head of government said on Friday in Wiesbaden: "The treaty is one of the most important documents for security, stability, and responsibility in Europe. It has significantly contributed to creating new, reliable structures for peace and cooperation after the end of the Cold War, and it plays a central role in our democratic stability. Without it, the reunification of Germany would not have been possible." The Two-plus-Four Treaty is considered the key document for the European reordering at the end of the Cold War. It was signed on September 12, 1990, between the Federal Republic of Germany, the GDR, and the four victorious powers of World War II - the USA, the Soviet Union, France, and Britain - in Moscow, and it forms the basis for the German unity's foreign policy. The treaty restored the full sovereignty of the united Germany, regulated its borders, alliance membership, and military power.

"The Two-plus-Four Treaty stands today for responsible security policy and a clear value base," said Rhein. Through Germany's pledge to limit its troop strength, renunciation of nuclear weapons, acceptance of existing borders, and firm integration into the NATO defense alliance, the treaty laid the foundation for peaceful cooperation in a stable Europe. "In the current time, marked by wars and crises, the Two-plus-Four Treaty remains a reference for pragmatic cooperation and responsible politics in a changing world," said the head of government, adding: "The lessons from this treaty are still relevant. Political courage and constructive dialogue are still crucial to consolidate Germany's role in Europe and find reliable solutions together."

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