United Kingdom of Great Britain and Northern Ireland (English: United Kingdom of Great Britain and Northern Ireland [2]), hereinafter referred to as The United Kingdom (The United Kingdom) or British (Britain), on The island of Great Britain is made of England, Scotland and wales, and northeast of The Northern Ireland and a series of AiErLanDao affiliated island composed of a small island. British home is located in the northwest Europe of the British Isles, be the north sea, the English channel, Celtic sea, the Irish sea and surrounded by the Atlantic ocean. In addition to outside Britain, including 14 overseas territory [3]. The United Kingdom consists of four countries combined and become, respectively is England, Scotland, Northern Ireland and wales [4]. The adoption of the British parliamentary system, the seat of government for London, but also have the other three national administrative institutions located in Belfast, add jermain Defoe and Edinburgh. The UK is a constitutional monarchy, the current monarch is queen Elizabeth ii. In Britain the most strong period of time is known as the British empire, the empire in 1922 reached a peak, with a quarter of the land around the world, are the world's biggest empire, the British empire, the British to continue in language, culture, and the political its former colony retained the huge influence, and Britain's queen Elizabeth ii is now still is the head of the commonwealth organization, and 15 other commonwealth countries head of state. Britain is a developed country, is the world's six economies, is the first industrialized countries [5], it is 19 century and early twentieth century the most powerful country in the world [6], but after two world wars and the 20 th century the collapse of the British empire, Britain has lost once in international affairs leadership. However, Britain is still a in the world with a strong influence within the scope of the economic, cultural, and military power. Britain is the first and the second world war ii main victors with nuclear weapons, and the second or third military spending, is a permanent member of the UN security council, have veto power to the bill, Britain also for eu member states, NATO member states and one of the founding members G8; Also is a series of international organizations such as a member of the OECD, the WTO.