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
Flag of Southern Rhodesia Rhodesia for official use outside the colony and the Union Jack was the official flag internally. In 1956, Southern Rhodesia entered into a federal union with Northern Rhodesia and Nyasaland to form the Federation of Rhodesia and Nyasaland. Upon union, a blue ensign with a unified badge was adopted to replace the respective previous flags. Southern Rhodesia was represented in the federation's flag by a red lion that had previously been on their old flag. Following the collapse of the federation in 1964, Southern Rhodesia then started calling itself Rhodesia and adopted a new flag at the behest of the