Prime Minister of Rhodesia held the post until the end of Federation on 31 December 1963. When Northern Rhodesia gained independence as Zambia on 24 October 1964, Southern Rhodesia began to refer to itself simply as "Rhodesia". Prime Minister Ian Smith's government issued a Unilateral Declaration of Independence from Britain in 1965, and he remained Prime Minister when the country was declared a republic in 1970. Under the Internal Settlement in 1979, after a long period of conflict, the country became known as Zimbabwe-Rhodesia, with Abel Muzorewa as its first black Prime Minister. None of these acts were recognised internationally, and under the Lancaster
Southern Rhodesia Dominion created the paradoxical situation of having a white elite owning most of the land and capital, whilst using cheap black labour. The Federation of Rhodesia and Nyasaland was dissolved on 1 January 1964. However, it was expected that only Nyasaland would be let go, whilst the remainder of Rhodesia both north and south would be united. Although Northern Rhodesia had a white population of over 100,000, as well as additional British military and civil units and their dependents, most of these were relatively new to the region, were primarily in the extraction business, had little landed interests, and were