The decision of the electorate to vote in favour of Brexit marks the first time in history that a member state has decided to leave the European Union.
In the United States, an ideological divide between reverence for continental European refinery and classics and xenophobic sentiment has existed for centuries; however, Euroscepticism is different from the anti-Europeanism more prevalent in American culture.
[2] In the late 19th century, Britain's foreign policy stance of minimal involvement in European affairs was characterised as "splendid isolation".
[3] The European Unity movement as a political project after 1945 was supported and inspired by British figures such as Winston Churchill who pledged in his 1946 Zurich speech for "a kind of United States of Europe" led by France and Germany but who did not see a need to involve Britain.
[6] Pro-European British politicians and citizens have faced various defeats and humiliations with regard to Britain's steps in the direction of increased European integration.
[7] Even parties like the Liberal Democrats with a clearly pro-European platform, have members that share the British lack of enthusiasms "of all things European".
[14] The Labour Party leader Hugh Gaitskell once declared that joining the European Economic Community (EEC) would mean "the end of a thousand years of history".
[18] Even before the events of the Suez Crisis in 1956, the United Kingdom had faced strains in its relationship with the U.S. After the Suez conflict it had finally to accept that it could no longer assume that it was the preferred partner of the United States and underwent a massive loss of trust in the special relationship with the U.S.[19] Britain, Denmark, Ireland, and Norway then started to prepare for a trading union, the European Free Trade Association (EFTA).
British politicians, such as Labour's George Brown were in 1962 still of opinion, that Britain should not only be allowed to join, but be welcomed to lead the European Union, and met then with ridicule.
[6] In the 1960s, the membership attempts of Conservative UK governments faced strong resistance from the Continent, especially from the French president, Charles de Gaulle.
[13] Instead of being offered a leadership role, Britain was put on a yearlong waiting list, a major political humiliation for pro-European Britons.
De Gaulle's veto in 1963 was a devastating blow for Harold Macmillan,[7] who, according to Hugo Young, was not the last Tory politician to end his or her career as a result of European affairs.
With Georges Pompidou replacing de Gaulle, the veto was lifted and negotiations began in 1970 under the pro-European Conservative government of Edward Heath.
It listed among "Areas of policy in which parliamentary freedom to legislate will be affected by entry into the European Communities": Customs duties, Agriculture, Free movement of labour, services and capital, Transport, and Social Security for migrant workers.
Britain then managed to reduce its contributions to the Union to a certain extent, as it was then the EU's second poorest member and, without much agriculture, benefited little from farm subsidies.
[28] A speech by Jacques Delors, President of the European Commission, at the TUC conference in 1988 helped to weaken the eurosceptic inclination in the Labour Party.
In response, the formerly eurosceptic union leader Ron Todd declared that "in the short term we have not a cat in hell’s chance in Westminster.
As President of the Commission, Delors pushed for stronger pan-European regulations in areas including industrial relations, health and safety, the environment and consumer protection.
[25] In the context of Thatcher's Conservative premiership, when policies to reduce the power of the trade unions were pursued, Delors' advocacy of a "social Europe" became attractive to many.
[34][35] The European integration process faced a major defeat with the failed Treaty establishing a Constitution for Europe and eurosceptical opinions gained more impact overall.
The role of public opinion had been lower before but gained importance with state referendums, as in the rejection of the constitution by French and Dutch voters in 2005.
The United Kingdom Independence Party (UKIP), advocating the UK's complete withdrawal from the European Union, had been founded in 1993 by Alan Sked, but initially had only very limited success.
Conservative MEPs vetoed this move because of the presence within the UEN of representatives of neo-fascist parties who do not share similar domestic politics.
In 2004, Duncan Smith's successor, Michael Howard, emphasised that Conservative MEPs would remain in the EPP Group so as to maintain influence in the European Parliament.
[37] In the 2014 UK European Parliament elections, UKIP support reached a new high water mark in England, coming first ahead of the Labour party, and gaining 26.6% of the vote, but on a very low unmotivated voter turnout of just 35.4 per cent.
[40] British government officials have often been hostile towards further European integration, supporting intergovernmental cooperation as opposed to supranational authority, and a single market rather than the EMU.
Although influential in some areas – e.g. the single market and defence – the UK is often in a minority of states opposed to change, and has not developed durable alliances to counter the Franco-German partnership.
[53] On 23 June 2016, the United Kingdom EU membership referendum was held, giving support for Britain leaving the European Union by a margin of 51.9% to 48.1%, with slightly over 72% turnout.
According to an Opinium/Observer poll taken on 20 February 2015[update], 51% of the British electorate said they would most likely vote the United Kingdom to leave the European Union if they were offered a referendum, whereas 49% would not (the figures exclude 14% who said they were unsure).