Government
Type: Constitutional monarchy.
Constitution: Unwritten; partly statutes, partly common law and practice.
Branches: Executive--Monarch (head of state), Prime Minister (head of government), cabinet. Legislative--bicameral parliament: House of Commons, House of Lords; Scottish Parliament, Welsh Assembly, and Northern Ireland Assembly. Judicial--magistrates' courts, county courts, high courts, appellate courts, House of Lords. Subdivisions: Scotland, Wales, Northern Ireland [Municipalities, counties, and parliamentary constituencies].
Political parties: Great Britain--Conservative, Labour, Liberal Democrats; also, in Scotland--Scottish National Party. Wales--Plaid Cymru (Party of Wales). Northern Ireland--Ulster Unionist Party, Social Democratic and Labour Party, Democratic Unionist Party, Sinn Fein, Alliance Party, and other smaller parties.
Suffrage: British subjects and citizens of other Commonwealth countries and the Irish Republic resident in the UK, at 18.

Government of United Kingdom
The United Kingdom does not have a written constitution. The equivalent body of law is based on statute, common law, and "traditional rights." Changes may come about formally through new acts of Parliament, informally through the acceptance of new practices and usage, or by judicial precedents. Although Parliament has the theoretical power to make or repeal any law, in actual practice the weight of 700 years of tradition restrains arbitrary actions.

Executive government rests nominally with the Monarch but actually is exercised by a committee of ministers (cabinet) traditionally selected from among the members of the House of Commons and, to a lesser extent, the House of Lords. The prime minister is normally the leader of the largest party in the Commons, and the government is dependent on its support.

Parliament represents the entire country and can legislate for the whole or for any constituent part or combination of parts. The maximum parliamentary term is 5 years, but the prime minister may ask the Monarch to dissolve Parliament and call a general election at any time. The focus of legislative power is the 659-member House of Commons, which has sole jurisdiction over finance. The House of Lords, although shorn of most of its powers, can still review, amend, or delay temporarily any bills except those relating to the budget. The House of Lords has more time than the House of Commons to pursue one of its more important functions--debating public issues. In 1999, the government removed the automatic right of hereditary peers to hold seats in the House of Lords. The current house consists of appointed life peers who hold their seats for life and 92 hereditary peers who will hold their seats only until final reforms have been agreed upon and implemented. The judiciary is independent of the legislative and executive branches but cannot review the constitutionality of legislation.

The separate identities of each of the United Kingdom's constituent parts also is reflected in their respective governmental structures. Up until the recent devolution of power to Scotland and Wales, a cabinet minister (the Secretary of State for Wales) handled Welsh affairs at the national level with the advice of a broadly representative council for Wales. Scotland maintains, as it did before union with England, different systems of law (Roman-French), education, local government, judiciary, and national church (the Church of Scotland instead of the Church of England). In addition, separate departments grouped under a Secretary of State for Scotland, who also is a Cabinet member, handled most domestic matters. In late 1997, however, following approval of referenda by Scottish and Welsh voters (though only narrowly in Wales), the British Government introduced legislation to establish a Scottish Parliament and a Welsh Assembly. The first elections for the two bodies were held May 6, 1999. The Welsh Assembly opened on May 26, and the Scottish Parliament opened on July 1, 1999. The devolved legislatures have largely taken over most of the functions previously performed by the Scottish and Welsh offices.

Northern Ireland had its own Parliament and prime minister from 1921 to 1973, when the British Government imposed direct rule in order to deal with the deteriorating political and security situation. From 1973, the Secretary of State for Northern Ireland, based in London, was responsible for the region, including efforts to resolve the issues that lay behind the "the troubles."

By the mid-1990s, gestures toward peace encouraged by successive British governments and by President Clinton began to open the door for restored local government in Northern Ireland. An IRA cease-fire and nearly 2 years of multiparty negotiations, led by former U.S. Senator George Mitchell, resulted in the Good Friday Agreement of April 10, 1998, which was subsequently approved by majorities in both Northern Ireland and the Republic of Ireland. Key elements of the agreement include devolved government, a commitment of the parties to work toward "total disarmament of all paramilitary organizations," police reform, and enhanced mechanisms to guarantee human rights and equal opportunity. The Good Friday Agreement also called for formal cooperation between the Northern Ireland institutions and the Government of the Republic of Ireland, and it established the British-Irish Council, which includes representatives of the British and Irish Governments as well as the devolved Governments of Northern Ireland, Scotland, and Wales. Devolved government was reestablished in Northern Ireland in December 1999.

The Good Friday Agreement provides for a 108-member elected Assembly, overseen by a 12-minister Executive Committee (cabinet) in which unionists and nationalists share leadership responsibility. Northern Ireland elects 18 representatives to the Westminster Parliament in London. However, the two Sinn Fein MPs, who won seats in the last election, have refused to claim their seats. The Good Friday Agreement also called for formal cooperation between the Northern Ireland institutions and the Government of the Republic of Ireland, and it established the British-Irish Council, which includes representatives of the British and Irish Governments as well as the devolved Governments of Northern Ireland, Scotland, and Wales.

Progress has been made on each of the key elements of the Good Friday Agreement. Most notably, a new police force has been instituted; the IRA has undertaken two acts of decommissioning of its weapons, and some measures to normalize the security situation in Northern Ireland have been taken. Disagreements over the implementation of elements of the agreement and allegations about the IRA's continued engagement in paramilitary activity, however, continue to trouble the peace process. In October 2002, Northern Ireland's devolved institutions were suspended amid allegations of IRA intelligence gathering at Stormont, the seat of Northern Ireland's government. Assembly elections scheduled for May 2003 were postponed. The British Government is working closely with the Irish Government and Northern Ireland political parties to create the conditions that would allow elections and the restoration of devolved government to take place.

The United States remains firmly committed to the peace process in Northern Ireland and to the Good Friday Agreement, which it views as the best means to ensure lasting peace. The United States has condemned all acts of terrorism and violence, perpetrated by any group.

The United States also is committed to Northern Ireland's economic development and to date has given or pledged contributions of more than $300 million to the International Fund for Ireland. The fund provides grants and loans to businesses to improve the economy, redress inequalities of employment opportunity, and improve cross-border business and community ties.
source: http://www.state.gov