October 2004, to the ratification of an agreement with the United Nations by the Cambodian National Assembly on the establishment of a tribunal to try senior leaders responsible for the atrocities committed by the Khmer Rouge. Donor countries pledged the $43 million international share of the three-year tribunal budget, while the Cambodian government's share of the budget was $13.3 million. The first trials of senior Khmer Rouge leaders took place only in 2007, when many of them were already dead or in ill-health. Disarmament Despite UNTAC's boasting of its effectiveness and being feted by the international community as a success, UNTAC failed to disarm the Khmer Rouge, while effectively disarming the SOC's local militias. This bias allowed the Khmer Rouge to make territorial gains and gave rise to political violence. The State of Cambodia's military leaders were furious, claiming that UNTAC was extremely exacting with the disarmament of the CPAF, but too lenient and ineffective when it came to disarm the Khmer Rouge. 1993 elections Over 4 million Cambodians (about 90% of eligible voters) participated in the May 1993 elections, although the Khmer Rouge or Party of Democratic Kampuchea (PDK), whose forces were never actually disarmed or demobilised, barred some people from participating. Prince Ranariddh's FUNCINPEC Party was the top vote recipient with a 45.5% vote, followed by Hun Sen's Cambodian People's Party and the Buddhist Liberal Democratic Party, respectively. FUNCINPEC then entered into a coalition with the other parties that had participated in the election. The parties represented in the 120-member assembly proceeded to draft and approve a new constitution, which was promulgated 24 September 1993. It established a multiparty liberal democracy in the framework of a constitutional monarchy, with the former Prince Sihanouk elevated to King. Prince Ranariddh and Hun Sen became First and Second Prime Ministers, respectively, in the Royal Cambodian Government (RGC). The constitution provides for a wide range of internationally recognised human rights. Participating countries The 46 participating countries providing military observers, police, or troops were: Criticism Norodom Sihanouk had reservations about the UNTAC operation. The massive presence of foreign troops led to the abuse of some Cambodian women, boosting prostitution and possibly driving a spike in the prevalence of HIV/AIDS by introducing the virus from other affected countries. The number of sex workers in the State of Cambodia rose from about 6,000 in 1991, to over 20,000 after the arrival of UNTAC personnel in