Malaysia–Singapore border territories when Johor became a British protectorate while Singapore remained a British crown colony. On 31 August 1957, the Federation of Malaya (which consisted of only Peninsular Malaysia), which included Johor as a component state, became independent and the Johor–Singapore border again became an international boundary between the sovereign state of Malaya and the self-governing British territory of Singapore. On 16 September 1963, Singapore merged with and become a component state of the Federation of Malaysia, rendering the border between two component states of Malaysia. The border again became an international border when Singapore chose to be separated from Malaysia
Communist insurgency in Malaysia (1968–89) the Malaysian state of Sarawak in the island of Borneo, which had been incorporated into the Federation of Malaysia on 16 September 1963. During the first Malayan Emergency (1948–1960), the MCP launched an unsuccessful insurrection against the Federation of Malaya. The independence of the Federation of Malaya on 31 August 1957 removed the major cause for the communists as the Federation had gained full autonomy from the United Kingdom. The first Malayan Emergency ended on 31 July 1960. Between 1960 and 1968, the MCP underwent a period of streamlining, retraining, and re-indoctrination of the communist ideology. The Malayan Races Liberation