Brunei–Malaysia border which are defined by agreements, from west to east, are as follows: Brunei and Malaysia in an Exchange of Letters on 16 March 2009, agreed to affirm the five agreements. The two countries also agreed to use the watershed principle to determine the remaining undelimited portions of the border. Brunei's maritime boundary with Malaysia until the 100 fathom isobath was inherited from the Sarawak (Definition of Boundaries) Order in Council 1958 No 1518 and the North Borneo (Definition of Boundaries) Order in Council 1958 No 1517, both of which defined the boundary between Brunei on the one hand, and Sarawak
Indonesia–Malaysia relations reaching 2,548,021 visitors in 2013. On the other hand, Malaysians are also the second largest visitors for Indonesia, reaching 1,302,237 travellers in 2011. The top visitors of both countries are Singaporean visitors. Kuala Lumpur, Malacca and Penang are popular destinations for Indonesian travellers, and vice versa Bandung, Medan and Bukittinggi are particularly popular among Malaysian tourist. Indonesia–Malaysia relations Indonesia–Malaysia relations (Indonesian and ; Jawi: هوبوڠن إندونيسيا–مليسيا) are foreign bilateral relations between Indonesia and Malaysia, and it is one of the most important bilateral relationships in Southeast Asia. Indonesia and Malaysia are two neighbouring nations that share similarities in many aspects.