evidence: Brunei regained her sovereignty over these blocks after her independence and application with UNCLOS. The then prime minister, Tun Abdullah Badawi, saw fit to return these blocks to Brunei. [...] With the Ambalat issue now coming into focus, its background begins with the Malaysia Indonesia Continental Shelf agreement signed on October 27, 1969. The government of Malaysia and the government of the Republic of Indonesia entered into an agreement dividing the continental shelf between the two countries.