Six nations, also known in European circles as the Inner Six, did not want a repeat of abuse of power that Germany had when Hitler was in power, so they agreed that Germany would not be allowed to have its own military force. Since then, the EU has extended outside the six nations; it now has twenty-seven members, all of which joined when the gradual process of enlargement commenced.
The process of enlargement began with the 'Outer Seven'; it was originally introduced in order to extend the free market principle through free trade between the union's members. It signified the beginning of the process of economic growth which was seen as a great project, but with the inclusion of the 'Outer Seven', soon it became not only an economic expansion project but also a political one. The 'Outer Seven' included the Mediterranean states of Portugal, Spain and Greece, which had emerged from dictatorships and were aspiring to democratisation, as a way to develop their economies and organisations.
The Conservative Prime Minister, in 1973, Edward Heath, was shocked at the extremely high level of economic growth that the six nations had experienced and wanted the UK to be involved so decided that it made sense for the UK to join the European Union. The national economy was still struggling, still, as result of the war; so it could be argued that British integration is down to economic reasons. At the time The Conservative government in the UK was in favour of a single market. The process of enlargement triggered predictable developments. The European Union changed dramatically as a result of enlargement which consequently meant that it was unmanageable to continue on an economic path. This then led