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 Australia time to time Prime Ministers are required to leave the country on government business and a deputy acts in their place during that time. In the days before jet aircraft, such absences could be for extended periods. For example, William Watt was acting Prime Minister for 16 months, from April 1918 until August 1919, when Prime Minister Billy Hughes was away at the Paris Peace Conference, and Senator George Pearce was acting Prime Minister for more than seven months in 1916. An acting Prime Minister is also appointed when the prime minister takes leave. The Deputy Prime Minister most commonly