
In 1939-1945, the European Union (EU) was come into existence.This ideal which is strong in economic and political institutions after the Second World War. It was a desire to create a peaceful and prosperous Europe after the destruction of two World Wars and after centuries of antagonism and mutual distrust between the European powers. Until now, EU/EEA member countries account for 40 per cent of world trade.

In the 1950s, Britain did not want to join the European Economic Community (EEA). Because of it believe itself as a commercial power and did not wish to be restricted by European relationships. In addition, Britain is apart from European connections and saw its future in the trading patterns of the Commonwelth and a 'special relationship' with the USA. At the same time, the French President vetoed when Britain attempts to join the EEC. Due to the French President criticized Britain's relationship with the USA, queried the extent of British commitment to Europe. After further negotiations, the provisions of the things that holding of a referendum in 1975, the first in British political history. the pro-marketeers won by a margin of 2 to 1 (67.2 per cent in favour 32.85 per cent against). However, there are now 25 EU menbers with a total population of 450 million people. Since 1994, most of the European single market measures have also been extended to Iceland, Norway and Liechtenstein by creating the European Economic Area (EEA).

It is argued that Parliament is the only directly-elected body in the EU which should have more power to veto EU policy has been relaxed. In 2004 the British European Parliament elecions the Labour Party and the conservative has poor performance. British membership of the EU continues to be difficult. On the one hand, Eurosceptic critics say that the United Kingdom's sovereignty and independence by the EU development and want to be right from the EU back to Britain. On the other hand, leading pro-European supporters hope that economic and political integration (poosibly on federal lines), that allow the Government to streamline the EU industrial and agricultural policies; to European countries, the efficient management and operation of the globalization of foregn policy can not be overcome by small and medium-sized country. A Europhile supporters who like, admire and love of European culture, society and history. Politically, it can be used to imply Pro-Europeanism, or support the European Union. Finally, in recent years, polls showed that most British are against joining the EU