leader Xanana Gusmão. UDT members killed a dozen Fretilin members in four locations. The victims included a founding member of Fretilin, and a brother of its vice-president, Nicolau Lobato. Fretilin responded by appealing successfully to the Portuguese-trained East Timorese military units. UDT's violent takeover thus provoked the three-week long civil war, in pitting its 1,500 troops against the 2,000 regular forces now led by Fretilin commanders. When the Portuguese-trained East Timorese military switched allegiance to Fretilin, it came to be known as Falintil. By the end of August, the UDT remnants were retreating toward the Indonesian border. 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 motivations 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. The head of Opsus and close adviser to Indonesian President Suharto, Major General Ali Murtopo, and his protege Brigadier General Benny Murdani headed military intelligence operations and spearheaded the Indonesia pro-annexation push. Indonesian domestic political factors in the mid-1970s, were not conducive to such expansionist intentions; the 1974–75 financial scandal surrounding petroleum producer Pertamina meant that Indonesia had to be cautious not to alarm critical foreign donors and bankers. Thus, Suharto was originally not in support of an East Timor invasion. Such considerations became overshadowed by Indonesian and Western fears that victory for the left-wing Fretilin would lead to the creation of a communist state on Indonesia's border that could be used as a base for incursions by unfriendly powers into Indonesia, and a potential threat to Western submarines. It was also feared that an independent East Timor within the archipelago could inspire secessionist sentiments within Indonesian provinces. These concerns were successfully used to garner support from Western countries keen to maintain good relations with Indonesia, particularly the United States, which at the time was completing its withdrawal from Indochina. The military intelligence organisations initially sought a non-military annexation strategy, intending to use APODETI as its integration vehicle. Indonesia's ruling "New Order" planned for the invasion of East Timor. There was no free expression in "New Order"