Turkey is negotiating its accession to the European Union (EU) as a member state, following its application to become a full member of the European Economic Community (EEC), the predecessor of the EU, on 14 April 1987.
After the ten founding members in 1949, Turkey became one of the first new members (the 13th member) of the Council of Europe in 1950. The country became an associate member of the European Economic Community (EEC) in 1963 and was an associate member of the Western European Union from 1992 to its end in 2011. Turkey signed a Customs Union agreement with the EU in 1995 and was officially recognised as a candidate for full membership on 12 December 1999, at the Helsinki summit of the European Council.
Negotiations for full membership were started on 3 October 2005.