European Union flag gently waving on a flagpole against a cloudy sky, symbolizing unity and patriotism.

From walls to welcome

The Cold War split ended, and integration surged. The EU built a unique supranational system based on shared treaties.

From Iron Curtain to Open Borders: Inside the European Union

A close-up shot of stacked euro coins with a blurred colorful background, representing financial concepts.

How the EU works

Many members share the euro, a single market, and a customs union. The Schengen Area even abolished internal border and immigration controls between members.

From Iron Curtain to Open Borders: Inside the European Union

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