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 Ghana Progress Party (PP), led by Kofi Abrefa Busia, won parliamentary elections and he became Prime Minister on 1 October 1969. Busia's government was deposed in a military coup on 13 January 1972. A presidential system was instituted in 1979 when civilian rule was re-established. The post of Prime Minister was never revived. <br> Prime Minister of Ghana The Prime Minister of Ghana was the head of government of Ghana from 1957 to 1960 and again from 1969 to 1972. The country's first leader and Prime Minister was Kwame Nkrumah of the Convention People's Party (CPP). He held that post from