European integration for greater transparency and trust among themselves. This transfer of national powers to a "Community" to be exercised by its Commission was paralleled under the 1957 Treaty of Rome establishing the European Atomic Energy Community (or Euratom) and the European Economic Community (EEC) in Brussels. In 1967, the Merger Treaty (or Brussels Treaty) combine the institutions of the ECSC and Euratom into that of the EEC. They already shared a Parliamentary Assembly and Courts. Collectively they were known as the European Communities. In 1987, the Single European Act (SEA) was the first major revision of the Treaty of Rome that
Economic history of the United Kingdom enter the European Economic Community (EEC) in order to revive its economy. This decision came after establishing a European Free Trade Association (EFTA) with other, non EEC countries since this provided little economic stimulus to Britain's economy. Levels of trade with the Commonwealth halved in the period 1945–1965 to around 25% while trade with the EEC had doubled during the same period. Charles de Gaulle vetoed a British attempt at membership in 1963 and again in 1967. The general election in June 1970 saw the Conservatives, now led by Edward Heath, achieve a surprise return to government after the opinion