European Union

The European Union (EU) is a political and economic union of 27 member states that are located primarily in Europe. A supranational union with a total area of 4,233,255 km2 (1,634,469 sq mi) and an estimated population of over 450 million as of 2025, its member states generated a nominal gross domestic product (GDP) of around €18. 802 trillion in 2025, accounting for approximately one sixth of global economic output.

The EU is often described as a sui generis political entity combining characteristics of both a federation and a confederation.

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