Zimbabwe Rhodesia ( /zɪmˈbɑːbweɪ roʊˈdiːʒə/), officially the Republic of Zimbabwe Rhodesia, was an unrecognized state that existed from 1 June 1979 to 12 December 1979. Zimbabwe Rhodesia was preceded by the unrecognized Republic of Rhodesia and was briefly followed by the re-established British colony of Southern Rhodesia, which according to British constitutional theory had remained the proper government after UDI in 1965. About three months later, the re-established colony of Southern Rhodesia was granted independence as the Republic of Zimbabwe.
An "Internal Settlement" between the Smith administration of the Republic of Rhodesia and moderate African nationalist parties not involved in the Rhodesian Bush War led to the end of white minority government and the birth of majority rule in Zimbabwe Rhodesia.
Read more about Zimbabwe Rhodesia: Naming, Government of Zimbabwe Rhodesia, End of Zimbabwe Rhodesia