Requires Harpoon Classic version 2022.027 (matrix patch) or later, Westpac BattleSet and HCCW 140314 database.
(Photo circa 1965 HMAS Melbourne, Vendetta and Voyager)
The Indonesia - Malaysia confrontation was an armed conflict from 1963 to 1966 that stemmed from Indonesia's opposition to the creation of the state of Malaysia from the Federation of Malaya. After Indonesian president Sukarno was deposed in 1966, the dispute ended peacefully.
The creation of Malaysia was a merger of the Federation of Malaya (now Peninsular Malaysia), Singapore and the British Crown colonies of North Borneo and Sarawak (collectively known as British Borneo, now East Malaysia) in September 1963. Vital precursors to the conflict included Indonesia's policy of confrontation against Dutch New Guinea from March to August 1962 and the Indonesia-backed Brunei revolt in December 1962. Malaysia had direct military support from the United Kingdom, Australia, and New Zealand. Indonesia had indirect support from the USSR and China, thus making it an episode of the Cold War in Asia.
The conflict was an undeclared war with most of the action occurring in the border area between Indonesia and East Malaysia on the island of Borneo (known as Kalimantan in Indonesia). However Indonesia also conducted lower intensity covert actions on the Malay Peninsula and in Singapore. The conflict was characterised by restrained and isolated ground combat, set within tactics of low-level brinkmanship. Combat was usually conducted by company- or platoon-sized operations on either side of the border.
It has been claimed that a Central Intelligence Agency memorandum of 1962 indicated that UK Prime Minister Macmillan and US President Kennedy were increasingly alarmed by the possibility of the confrontation with Malaysia spreading, and agreed to "liquidate President Sukarno, depending on the situation and available opportunities". [extract from Wikipedia]
In this alternative to history situation Sukarno has been removed by external efforts but rather than calm the situation it has inflamed it and resulted in more direct involvement of China and the USSR.