Indonesia-Malaysia Confrontation (Great Nuclear War)
Timeline: Great Nuclear War

Top left going clockwise: Malaysian Scouts in Sabah, British Commandos rappel from a helicopter in Borneo, Philippine Air Force airmen in Zamboanga City before commencing Operation Merdeka.

date: January 20, 1963 - March 5, 1974
location: Malay Peninsula, Borneo, parts of Tawi-Tawi, Basilan, and Sulu
result: 1974 Treaty
  • Indonesia recognizes Malaysia
  • Sabah is ceded to the Philippines
  • Philippines-Malaysia relations frozen

Commonwealth of Nations:
Flag of MalaysiaMalaysia
Before Federation:

  • Flag of MalayaMalaya
  • Flag of North BorneoNorth Borneo
  • Flag of SarawakSarawak
  • Flag of SingaporeSingapore
  • Flag of BruneiBrunei
  • Flag of the United KingdomUnited Kingdom (British Forces Command)
  • Flag of AustraliaAustralia
  • Flag of New ZealandNew Zealand

Flag of IndonesiaIndonesia

Flag of the Philippines (navy blue)Philippines
Supported by: Flag of the United StatesUnited States remnant forces

The Indonesian-Malaysian confrontation, also called Borneo confrontation, (Malay: Konfrantasi) was a conflict that took place in Borneo following the creation of the Federation of Malaysia a year after the Great Nuclear War. The nuclear war of 1962 only made the conflict worst. The creation of Malaysia was the amalgamation of the Federation of Malaya (now West Malaysia), Singapore and the crown colony/British protectorates of North Borneo and Sarawak (collectively known as British Borneo, now East Malaysia) in September 1963. The Federation was supported by remnant British forces in Far East, mainly coming from Brunei, Australia, and New Zealand. In 1971, the Philippines became involved in the conflict when it invaded Sabah under the pretext of "peacekeeping" which was an obvious attempt at seizing it.

The conflict only ended in March 5, 1974, with the signing of the Treaty of Port Moresby. The treaty stated that the three sides agreed that Indonesia would recognize Malaysia while Sabah would be ceded to the Philippines.

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