Pedra Branca, Singapore ceded by the Government of the State of Johore or in any other way disposed of". The Acting State Secretary of Johor replied on 21 September that "the Johore Government does not claim ownership of Pedra Branca". This correspondence indicated that as of 1953 Johor understood it did not have sovereignty over Pedra Branca, which had therefore vested in the United Kingdom. The Colony of Singapore became a self-governing state in 1959, and left the British Empire to join the Federation of Malaysia in 1963. Two years later, in 1965, Singapore became a fully independent republic. In 1959, in an
Imperial Federation Imperial Federation The Imperial Federation was a proposal in the late 19th and early 20th centuries to create a federal union in place of the existing British Empire. The project was championed by Unionists such as Joseph Chamberlain as an alternative to William Gladstone's proposals for home rule. At the time, the British Empire consisted of many colonies, some of which were largely self-governing dominions (Canada, Newfoundland, Australia, New Zealand, South Africa) and others were not (India, West Indies, Fiji). The future of the empire remained uncertain, as it was unclear what the end result would be if all colonies