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
Northern Rhodesia no further white minority governments would be permitted, dismissing settler aspirations of self-government in Kenya and Northern Rhodesia. This turned Northern Rhodesian Europeans against association with East Africa towards union with Southern Rhodesia. In 1933, a substantial minority in the Northern Rhodesian legislature favoured amalgamation with Southern Rhodesia, despite vigorous African opposition. However, the majority of settlers were still cautious about being marginalised by the much greater numbers of Europeans in Southern Rhodesia. From 1943, six Provincial Councils were set up to form a second tier of African representative institutions above the Native Authorities. These were purely advisory bodies, whose