Brunei–Indonesia relations earlier. The Nagarakretagama Javanese poem dated from 1365 CE mentioned "Barune" (Brunei) in canto 14 as one of Majapahit overseas vassal states. The relations between Brunei and the rest of Indonesian Archipelago perhaps has been established earlier during the era of Srivijayan Empire. During European colonial era, Indonesia was fell under Dutch possession as Dutch East Indies, while Brunei together with Singapore and Malaysia was fell under British Empire. In 1960s Indonesia and Brunei indirectly locked in military tension through the Konfrontasi, where Indonesia against the formation of Malaysia and dispatches troops infiltrated Sarawak, North Borneo including Brunei. Republic of
Peninsular Malaysia agreement with Federation of Malaya in forming the Federation of Malaysia. Peninsular Malaysia Peninsular Malaysia also known as Malaya or West Malaysia, is the part of Malaysia which lies on the Malay Peninsula and surrounding islands. Its area is , which is nearly 40% of the total area of the country - - or slightly smaller than England and Java island. It shares a land border with Thailand in the north. To the south is the island of Singapore. Across the Strait of Malacca to the west lies the Sumatra Island (Indonesia) and across the South China Sea to the