The term 'THE 'U' OF E.U.' is an acronym for the UNION of European UNION, which is a political and economic UNION of 28 member states located primarily in Europe. The UNION of European UNION was established in 1993 and is responsible for the coordination of policies and legislation between its member states. The UNION of European UNION is also responsible for the implementation of the single market, which allows for the free movement of goods, services, capital, and people within the member states.