European Union - The World Factbook
https://www.cia.gov/the-world-factbook/about/archives/2021/countries/european-union
WEBDec 28, 2021 · Ten new countries joined the EU in 2004 - Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia. Bulgaria and Romania joined in 2007 and Croatia in 2013, but the UK withdrew in 2020. Current membership stands at 27.
DA: 80 PA: 51 MOZ Rank: 75