The Prime Minister of Great Britain is the head of the UK government and is responsible for overseeing the operation of the government and the execution of its policies. The Prime Minister leads the Cabinet, makes key decisions, and represents the UK in international matters. They are usually the leader of the political party that has the most seats in the House of Commons. The Prime Minister is appointed by the Monarch and must maintain the confidence of the House of Commons to stay in office. Elections are held at least every five years, and the Prime Minister can be removed through a vote of no confidence or by their party.