Britain is a Constitutional Monarchy, with Queen Elizabeth II as head of state. Its system of parliamentary government has been emulated around the world. Unusually, it does not have a codified constitution; the Queen and the two Houses of Parliament can therefore amend or reform the constitution simply by passing legislation.
As in Ireland, the position of Prime Minister belongs to the leader of the political party that can obtain the confidence of the lower house of parliament (the House of Commons). The Prime Minister chooses the members of the Cabinet, mainly from his/her own Party and mainly from within the House of Commons (or occasionally from the upper house, the House of Lords). Executive power is exercised collectively by the Prime Minister and his Cabinet.
Mr David Cameron MP has been Prime Minister since May 2010.
For more information please visit: http://www.direct.gov.uk
