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–Malaysia border Brunei–Malaysia border The border between Brunei and Malaysia consist of a 481.3 km land border and substantial lengths of maritime borders stretching from the coastline of the two countries to the edge of the continental shelf in the South China Sea. Except for its South China Sea coastline, Brunei is entirely surrounded by Malaysia's Sarawak state and the country only shares a land boundary with Malaysia. Brunei's unique shape where its territory consists of two non-contiguous portions results in its border with Malaysia being broken into two segments. Brunei's 200 nautical mile continental shelfclaim makes it a claimant of a