A singular method of collaboration among independent nations, the European Union (EU) is a political and economic partnership.
Switzerland, Liechtenstein, Norway, and Iceland are members of the European Free Trade Association (EFTA), an intergovernmental organization. It was established in 1960 by its seven founding members to advance free trade and economic integration among them.
Schengen and the Single Market are achievements of the EU. Many European countries no longer have border restrictions thanks to the Schengen Agreement. Crossing international boundaries is similar to doing so across state lines in the US. All trade restrictions between EU member states were eliminated by the European Single Market.
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