Brunei revolt of Malaysia. The following units, or significant elements of them, deployed to Borneo in response to the rebellion before May 1963: Brunei revolt The Brunei revolt () was a December 1962 insurrection in the British protectorate of Brunei by opponents of its monarchy and its proposed inclusion in the Federation of Malaysia. The insurgents were members of the TNKU (North Kalimantan National Army), a militia supplied by Indonesia and linked to the leftwing Brunei People's Party (BPP), which favoured a North Borneo Federation. The TNKU began co-ordinated attacks on the oil town of Seria (targeting the Royal Dutch Shell oil
Indonesia–Malaysia border dispute originated in 1969 when the two countries negotiated to delimit the common border of their continental shelf. As the two countries could not agree on the soveignty of the two islands, the continental shelf border was left off the 1969 agreement between the two countries. Indonesia claimed that the islands were theirs by virtue of the fact that they were located south of 4° 10" North which it said formed the maritime border between it and Malaysia by virtue of a straight line extension of the land border which ended on the east coast Sebatik island. Malaysia however, claimed