Brunei–Malaysia border 1901 (ceded to the British North Borneo Company which subsequently transferred the territory to Sarawak in 1904). The treaty between the Sultanate and Britain in 1888, which resulted in Brunei becoming a British Protectorate, did not manage to halt the loss of territory. The annexation of the Baram, Trusan and Limbang areas resulted in the current borders of Brunei, with the Limbang annexation, which Brunei had continuously refused to recognise, fragmenting the Sultanate into two non-contiguous territories. Malaysia inherited these borders with Brunei when Sarawak, which had also become a British Protectorate in 1888 and subsequently a Crown Colony after
Brunei and Malaysia and most of his senior cabinet ministers, including Tun Abdul Razak, Razali Ismail and Tan Siew Sin, met with the Sultan of Brunei to negotiate conditions including: Brunei pulled out of the negotiations before the Malaysia Agreement was signed on 9 July 1963 and subsequently became independent from the United Kingdom on 1 January 1984. Brunei and Malaysia Brunei and Malaysia: " Why Sultan Omar Ali Saifuddin Refused to Join the Federation " is a 2013 book written by Isa Bin Ibrahim, a prominent member of the delegation of Sultan Omar Ali Saifuddin of Brunei with Neil Lawson QC, a