Indonesia–Malaysia confrontation TNKU's objectives to destabilise the proposed Malaysian state. Following the TNKU's military setback in Brunei, on 20 January 1963 Indonesian Foreign Minister Subandrio announced that Indonesia would pursue a policy of "Konfrontasi" with Malaysia, reversing Indonesia's previous policy of compliance with the British proposal. This was followed by the first recorded infiltration of Indonesian forces on 12 April 1963 when a police station in Tebedu, Sarawak, was attacked. In 1961, the island of Borneo was divided into four separate states. Kalimantan, comprising four Indonesian provinces, was located in the south of the island. In the north, separated from Kalimantan by
Indonesia–Malaysia border the incident. All detainees were released by 17 August 2010 but the incident unleashed a wave of anti-Malaysia sentiments in Indonesia. Both Indonesia and Malaysia agreed that the maritime border between the two countries in the area has not been determined. Indonesia claimed that it was ready to begin negotiations to determine the border but said that the Malaysians, which relies on its 1979 territorial waters and continental shelf limit map as the basis for its claim in the area, were not ready as they wanted to settle its maritime border with Singapore adjacent to the area first following the