Head of state second and last incumbent of the office, Yusof bin Ishak, kept the style at 31 August 1963 unilateral declaration of independence and after 16 September 1963 accession to Malaysia as a state (so now as a constituent part of the federation, a non-sovereign level). After its expulsion from Malaysia on 9 August 1965, Singapore became a sovereign Commonwealth republic and installed Yusof bin Ishak as its first President. In 1959 after the resignation of Vice President of Indonesia Mohammad Hatta, President Sukarno abolished the position and title of vice president, assuming the positions of Prime Minister and Head of Cabinet.
Federation of Rhodesia and Nyasaland 1950s and early 1960s, the United Kingdom was subjected to pressure to de-colonize from both the United Nations and the Organization of African Unity (OAU). These groups supported the aspirations of the black African nationalists and accepted their claims to speak on behalf of the people. The federation officially ended on 31 December 1963. In 1964, shortly after the dissolution, Northern Rhodesia and Nyasaland became independent under the names Zambia and Malawi, respectively. In 1965, Southern Rhodesia unilaterally declared independence from the United Kingdom as the state of Rhodesia. In 1929, the Hilton Young Commission concluded that "in the present