
Sixth expansion:
Croatia
2013.

Fifth Extension (Part Two):
Bulgaria
Romania
2007.

Fifth extension (part one):
Estonia
Cyprus
Latvia
Lithuania
Malta
Hungary
Poland
Slovakia
Slovenia
Czech Republic
2004.

Fourth expansion:
Austria
Finland
Sweden
1995.

Third extension:
Portugal
Spain
1986.

Second extension:
Greece
1981.

First extension:
Denmark
Ireland
United Kingdom
1973.

Founding countries:
Belgium
The Netherlands
Luxembourg
West Germany
France
Italy
1952.
Candidates for EU membership

Albania

27. 06. 2014. godine

Serbia

01. 03. 2012. godine

Montenegro

17. 12. 2010. godine

FYR Macedonia

16. 12. 2005. godine

Turkey

11. 12. 1999. godine
Potential candidates:
Bosnia and Herzegovina
Kosovo* (*in accordance with UN Security Council resolution 1244/99)