The Dayak's political representation in Sarawak compare very poorly with their organised brethren in the Indonesian side of Borneo, partly due to the personal fiefdom that was the Brooke Rajah dominion, and possibly to the pattern of their historical migrations from the Indonesian part to the then pristine Rajang Basin. Reconstituted into British crown colony after the end of Japanese occupation in World War II, Sarawak obtained independence from the British on 22 July 1963, alongside Sabah (North Borneo) on 31 August 1963, and would join the Federation of Malaya and Singapore to form the Federation of Malaysia on 16 September 1963 under the belief of being equal partners in the "marriage" as per the 18 and 20-point agreements and the Malaysia Agreement of 1963.