The European Union (EU) has undergone remarkable change in the last century, from frequent conflicts in the first part of the last century, to peace, stability and unprecedented prosperity in the second half. As we move into the first half of the twenty-first century, there is also a sense that a fragile economic renaissance is underway in the EU, but one that is fraught with challenges and difficulties. Contrary to many of the vociferous critics of the single currency project (mostly US economists and some UK politicians, most notably Thatcher (2002), to date the project has met with remarkable success, despite the dramatic fall in the euro from its launch date and the strains imposed on EU economies following the recent downturn in the world economy. EU Enlargement has now been successfully completed, and although there have been painful discussions on EU institutional reform to accommodate the expansion, a breakdown in the 2005 budget negotiations and an controversy over the implementation of the Stability and Growth pact, it is likely that this will not impede the addition of new Member States from the east.