Prime Minister of New Zealand ministerial power; in 1912 Thomas Mackenzie was the last prime minister to lose power through an unsuccessful confidence motion in the House of Representatives. One change brought about by the First World War was direct participation in governing the British Empire. Previously, New Zealand prime ministers had attended occasional colonial and imperial conferences, but they otherwise communicated with London through the governor (a position then appointed by the British government). In 1917, however, British Prime Minister David Lloyd George offered the New Zealand prime minister a seat in the Imperial War Cabinet, the British Empire's wartime coordinating body. In 1919,
Prime Minister of Rhodesia Prime Minister of Rhodesia The Prime Minister of Rhodesia (before 1964, of Southern Rhodesia) was the head of government in Rhodesia. Rhodesia, which became a self-governing colony of Britain in 1923, unilaterally declared independence on 11 November 1965, and was thereafter an unrecognized state in practice until 1979. In December 1979, the country came under temporary British control, and in April 1980 the country gained recognized independence as Zimbabwe. Rhodesia's political system was modeled on the Westminster system, and the Prime Minister's role was similar to that of the same position in other countries with similar constitutional histories – Canada,