 A UDT group of nine hundred crossed into West Timor on 24 September 1975, followed by more than a thousand others, leaving Fretilin in control of East Timor for the next three months.The death toll in the civil war reportedly included four hundred people in Dili and possibly sixteen hundred in the hills.Indonesian nationalist and military hardliners, particularly leaders of the intelligence agency Kopkamtib and special operations unit, Opsus, saw the Portuguese coup as an opportunity for East Timor's annexation by Indonesia.