What would you call a country that called for "a structure under which (Europe) can dwell in peace, in safety and in freedom ... a kind of United States of Europe" at the end of World War II (Winston Churchill, 1946), but refused to join that structure when its European neighbors actually began building it (European Economic Community, 1957)?
What would you call that country if it changed its mind and asked to join the EEC in 1961, a goal it finally achieved in 1973 under Conservative Prime Minister Edward Heath — only to demand a renegotiation of its terms of membership and hold an in/out referendum on EEC membership under a Labour government two years later?
What would you say if that country then demanded another renegotiation of the terms of membership under Conservative Prime Minister Margaret Thatcher in 1984, and insisted on opting out of the planned single currency when the countries of the European Community (as it now styled itself) signed the Treaty of Maastricht in 1992?