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List of European Union member states by accession
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![EU Member States By Date of Accession [OC][4592x3196] | Eu member states, Europe map, Map](https://i.pinimg.com/736x/e7/ef/81/e7ef810c97734f4e829a34fcbfb37609.jpg "EU Member States By Date of Accession [OC][4592x3196] | Eu member states, Europe map, Map")
EU Member States By Date of Accession [OC][4592x3196] | Eu member states, Europe map, Map
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Enlargement of the European Union - Wikipedia
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Enlargement of the European Union - Wikipedia
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European Union membership: How countries join, and more | Pew Research Center
File:EU accession map.svg - Wikimedia Commons
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List of European Union member states by accession
How new member states join the EU: all you need to know - UK in a changing Europe
European Community | European economic association | Britannica
Reimagining U.S. Policy toward the Western Balkans | Center for Strategic and International Studies
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EU Countries - The Member States of the European Union
