The prime minister of Zambia was the head of government of Zambia. From 1973 to 1975, Mainza Chona was the first person to hold the position following independence from the United Kingdom (Kenneth Kaunda was the only prime minister of Northern Rhodesia in 1964, before it became independent as Zambia). The position of the prime minister of Zambia was abolished in 1991, in the last months of Kaunda's presidential term. Since then, the president of Zambia serves as both the head of state and the head of government. History Northern Rhodesia When the country was founded as the British colony of Northern Rhodesia separate from British South Africa Company rule in the Rhodesias, the elected Legislative Council was created. At the time, the office of prime minister did not exist, with all executive power being vested in the governor of Northern Rhodesia. However, the leader of the largest elected party on the council was considered as the "unofficial" prime minister. When Northern Rhodesia united with Southern Rhodesia and Nyasaland to form the Federation of Rhodesia and Nyasaland, the office of prime minister of the Federation of Rhodesia and Nyasaland was created, with Northern Rhodesia's Roy Welensky becoming the second and final holder of the office. Following the breakup of the federation due to the withdrawal of Northern Rhodesia, the office of prime minister was created for the colony. The first and only prime minister of Northern Rhodesia was the United National Independence Party's (UNIP) Kenneth Kaunda after winning the 1964 general election ahead of independence. Zambia Upon independence and the renaming of the country as Zambia, Kaunda became the new president of Zambia after being elected unopposed. The office of prime minister was abolished accordingly. In 1973, following an amendment to the Constitution of Zambia, the office of prime minister was re-established as the titular head of the government but the holder would be subordinate to the Secretary-General of UNIP in governing Zambia. This was because the Central Committee of UNIP had precedence over the Parliament of Zambia under the Constitution. President Kaunda appointed his former vice-president, Mainza Chona, as prime minister. In 1975, Chona resigned and was replaced by Elijah Mudenda. In 1977, Chona became prime minister again for a year before the role was taken over by Daniel Lisulo. Kebby Musokotwane took the role over from Nalumino Mundia in 1985, becoming the youngest prime minister and also the