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 Police destroyed the German Fleet on Lake Tanganyika. In May 1916 all five NRP companies crossed into German East Africa. Combined with the two BSAP companies, in what was misnamed the Southern Rhodesia Column under Lieutenant Colonel R. E. Murray , played a full part in driving the enemy out of Tanganyika. In December 1917 the NRP troops in the field were reorganised into four double companies as the Northern Rhodesia Police Service Battalion. Meanwhile the CID and Town Police had kept on with their work back home. They obtained nearly twice as many convictions in 1917 as in 1914. In