The United Kingdom is a developed country and has the world's sixth-largest abridgement by nominal GDP and eighth-largest by purchasing ability parity. It was the world's aboriginal industrialised country and the world's foremost ability during the 19th and aboriginal 20th centuries. The UK charcoal a abundant ability with ample economic, cultural, military, accurate and political access internationally. It is a recognised nuclear weapons accompaniment and its aggressive amount ranks from fourth to sixth (depending on the source) in the world. The UK has been a abiding United of the United Nations Security Council back its aboriginal affair in 1946. It has been a United of the European Union (EU) and its antecedent the European Bread-and-butter Community (EEC) back 1973; it is aswell a United of the Commonwealth of Nations, the Council of Europe, the G7, the G8, the G20, NATO, the Organisation for Bread-and-butter Co-operation and Development (OECD) and the Apple Trade Organization (WTO).
The relationships a allotment of the countries of the United Kingdom accept afflicted over time. The Principality of Wales was congenital into the Kingdom of England in 1536. In 1707, the kingdoms of Scotland and England were United to anatomy the Kingdom of Abundant Britain, which in 1801, United with the Kingdom of Ireland to anatomy the United Kingdom of Abundant Britain and Ireland. In 1922, five-sixths of Ireland seceded from the UK, abrogation the present conception of the United Kingdom of Abundant Britain and Arctic Ireland. British Overseas Territories, aforetime colonies, are the debris of the British Authority which, at its acme in the backward 19th and aboriginal 20th centuries, amid about a division of the world's acreage accumulation and was the better authority in history. British access can be empiric in the language, ability and acknowledged systems of abounding of its above colonies.