History of the European Union since 2004 the decision on 31 March 2010 to abolish the Western European Union. In 2007, the fifth enlargement completed with the accession of Romania and Bulgaria on 1 January. 53 MEPs joined the Parliament along with two commissioners, for which two new posts were created in the Commission. The post created for the Romanian Commissioner was Multilingualism, which was criticised by some for its narrow scope. Negotiating process with Croatia as an official candidate country had been stalled for 10 months due to Slovenia's blockade of Croatia's EU accession, which was lifted in September 2009 after an agreement. Croatia has since
European integration on 1 January 2001. Slovenia joined on 1 January 2007, Cyprus and Malta were admitted on 1 January 2008, Slovakia joined on 1 January 2009, Estonia on 1 January 2011, Latvia on 1 January 2014 and Lithuania on 1 January 2015. Outside the EU, agreements have been concluded with Andorra, Monaco, San Marino, and Vatican City for formal adoption, including the right to issue their own coins. Montenegro and Kosovo unilaterally adopted the euro when it launched. There has long been speculation about the possibility of the European Union eventually becoming a fiscal union. In the wake of the European