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
Mali Federation Mali Federation The Mali Federation () was a federation in West Africa linking the French colonies of Senegal and the Sudanese Republic (or French Sudan) for a period of only two months in 1960. It was founded on 4 April 1959 as a territory with self-rule within the French Community and became independent after negotiations with France on 20 June 1960. Two months later, on 19 August 1960, the Sudanese Republic leaders in the Mali Federation mobilized the army and Senegal leaders in the federation retaliated by mobilizing the gendarmerie (national police) which resulted in a tense stand-off and the