Greater Malaysia
Confrontation was a conflict which developed in 1963 between Indonesia and the new state of Malaysia backed by Commonwealth allies. Its origins lay in Great Britain's plans to divest itself of formal empire in South-east Asia. This would be achieved by federating the then Crown colonies in Borneo (Sabah and Sarawak), the protected state of Brunei, and the self-governing colony of Singapore with Malaya, which had been independent since 1957, and where the 12-year-long Emergency had formally ended in 1960. Formal agreement providing for a federation of greater Malaysia was reached between London and Kuala Lumpur in November 1961. Both parties agreed to establish the new state by 31 August 1963. Despite relinquishing sovereignty, the British were guaranteed the continued use of their bases at Singapore by the Malayan Prime Minister, Tunku Abdul Rahman.