Source: European Parliament
The Treaty of Nice only partially prepared the EU for its significant enlargements to the east and south on 1 May 2004 and 1 January 2007. Therefore, as part of the conclusions to the Laeken European Council meeting in December 2001, EU leaders established the European Convention on the Future of Europe – an effort to produce a new legal basis for the EU in the form of a treaty establishing a Constitution for Europe. Following ‘no’ votes in referendums in two of the Member States, this treaty was not ratified.