The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. [9] [10] The Union has a total area of 4,233,255 km 2 (1,634,469 sq mi) and an estimated total population of over 449 million.The EU has often been described as a sui generis political entity combining the characteristics of both a federation and a confederation. More @Wikipedia
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