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
Rhodesian Security Forces of the British self-governing colony of Southern Rhodesia on its formation in 1923, then part of the Federation of Rhodesia and Nyasaland military in 1953. After the break-up of the Federation at the end of 1963, the security forces assumed the form they would keep until 1980. As the armed forces of Rhodesia (as Southern Rhodesia called itself from 1964), the Rhodesian Security Forces remained loyal to the Salisbury government after it unilaterally declared independence from Britain on 11 November 1965. Britain and the United Nations refused to recognise this, and regarded the breakaway state as a rebellious British colony