History of European Union–United Kingdom relations History of European Union–United Kingdom relations Since the foundation of the European Communities, the United Kingdom has been an important neighbour and is currently a major member, until its withdrawal. The UK was not a signatory of the three original treaties that were incorporated into what was then the European Communities, including the most well known of these, the 1957 Treaty of Rome, establishing the European Economic Community (EEC). The UK's applications to join in 1963 and 1967 were vetoed by the President of France, Charles de Gaulle, who said that "a number of aspects of Britain's economy, from working
European Economic Community Community", continuing to follow the supranational structure of the EEC. The EEC institutions became those of the EU, however the Court, Parliament and Commission had only limited input in the new pillars, as they worked on a more intergovernmental system than the European Communities. This was reflected in the names of the institutions, the Council was formally the "Council of the "European Union"" while the Commission was formally the "Commission of the "European Communities"". However, after the Treaty of Maastricht, Parliament gained a much bigger role. Maastricht brought in the codecision procedure, which gave it equal legislative power with the