Indonesia–Malaysia relations of Malaysia, Singapore, and Brunei. The diplomatic relations between the Republic of Indonesia and Federation of Malaya were established promptly after Malaya's independence from Britain in 1957. However, the relations between the two nations deteriorated under Indonesian President Sukarno in 1962 (see Indonesia–Malaysia confrontation, see Indonesian withdrawal from the United Nations). The conflict resulted from Indonesian opposition to the formation of Malaysia, a merger of the Federation of Malaya with two former British colonies on Borneo: Sarawak and Sabah. The conflict has led to the termination of diplomatic relations on 17 September 1963. After the fall of Sukarno, relations between
Brunei–Indonesia relations defence, transnational crimes, education, youth, culture and people-to-people contacts. Both Brunei and Indonesia have many common characteristic traits, these include common frames of reference in history, culture and religion. Their national languages; Indonesian language and Malay language are closely related. The majority of the population of both nations were of Austronesian ancestry or of the Malay race, with significant Malay culture shared among them. Both nations are Muslim majority countries, members of ASEAN and APEC, and also members of the Non-aligned Movement, and Organisation of Islamic Cooperation. Relations between Indonesia and Brunei has been established since 14th century or perhaps