administrative zones. Following the war, Togoland formally became a League of Nations mandate divided for administrative purposes between France and the United Kingdom. After World War I, newly founded Czechoslovakia was also interested in this colony but this idea did not succeed. Lome was initially allocated to the British zone but after negotiations transferred to France 1 October 1920. After World War II, the mandate became a UN trust territory administered by the United Kingdom and France. During the mandate and trusteeship periods, western Togo was administered as part of the British Gold Coast. In December 1956, the residents of British Togoland voted to join the Gold Coast as part of the new independent nation of Ghana. In the Representative Assembly elections in 1946, there were two parties, the Committee of Togolese Unity (CUT) and the Togolese Party of Progress (PTP). The CUT was overwhelmingly successful, and Sylvanus Olympio, the CUT leader became Council leader. However, the CUT was defeated in the 1951 Representative Assembly elections and the 1952 Territorial Assembly elections, and refused to participate in further French supervised elections because it claimed that the PTP was receiving French support. By statute in 1955, French Togoland became an autonomous republic within the French union, although it retained its UN trusteeship status. Following elections to the Territorial Assembly on 12 June 1955, which were boycotted by CUT, considerable power over internal affairs was granted, with an elected executive body headed by a Prime Minister responsible to the legislature. These changes were embodied in a constitution approved in a 1956 referendum. On 10 September 1956, Nicolas Grunitzky became Prime Minister of the Republic of Togo. However, due to irregularities in the plebiscite, a UN-supervised parliamentary election was held on 27 April 1958, the first held in Togo with universal suffrage, which was won by the opposition pro-independence CUT and its leader Sylvanus Olympio, who became Prime Minister. On 13 October 1958 the French government announced that full independence would be granted. On 14 November 1958 the United Nations’ General Assembly took note of the French government's declaration according to which Togo which was under French administration would gain independence in 1960, thus marking an end to the trusteeship period. On 5 December 1959 the United Nations’ General Assembly resolved that the UN Trusteeship Agreement with France for Cameroon would end when Togo became independent on 27 April 1960. On 27 April