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
Accession of the United Kingdom to the European Communities Accession of the United Kingdom to the European Communities The Accession of the United Kingdom to the European Communities (EC) – the collective term for the European Coal and Steel Community (ECSC), the European Economic Community (EEC) and the European Atomic Energy Community (EAEC) – took effect on 1 January 1973. This followed ratification of the Accession treaty which was signed in Brussels on 22 January 1972 by the Conservative prime minister Edward Heath, who had pursued the UK's application to the EEC since the late 1950s. Denmark and Ireland also joined as part of the same expansion but Norway,