Sir Winston Leonard Spencer-Churchill KG OM CH TD DL FRS RA was a British politician, army officer, and writer, who was Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. As Prime Minister, Churchill led Britain to victory in the Second World War. Ideologically an economic liberal and British imperialist, he was a member of the Liberal Party from 1904 to 1924 before joining the Conservative Party, which he led from 1940 to 1955. Churchill represented five constituencies during his career as Member of Parliament