for military expenditures. Then, on 13 May 1988, the Vietnamese Politburo adopted Resolution No. 13 on foreign policy, which aimed to achieve diversification and multilateralisation of Vietnam's foreign relations. Its main objectives were to end the embargoes imposed by UN members, integrate Vietnam with the regional and international community, and ultimately attract foreign investment and development aid. As part of this change, Vietnam ceased to regard the United States as a long-term foe and China as an imminent and dangerous enemy. In addition, official Vietnamese propaganda stopped labeling ASEAN as a "NATO-type" organisation. To implement the new reforms, Vietnam, with support from the Soviet Union, started transferring several years' worth of military equipment to the KPRAF, which numbered more than 70,000 soldiers. The Vietnamese Ministry of Defense's International Relations Department then advised its Kampuchean counterparts to only use the available equipment to maintain their current level of operations, and not to engage in major operations which could exhaust those supplies. In 1988, Vietnam was estimated to have about 100,000 troops in Kampuchea, but, sensing that a diplomatic settlement was within reach, the Vietnamese Government began withdrawing forces in earnest. Between April and July 1989, 24,000 Vietnamese soldiers returned home. Then, between 21 and 26 September 1989, after suffering 15,000 soldiers killed and another 30,000 wounded during the 10-year occupation, Vietnam's commitment to Kampuchea was officially over, when the remaining 26,000 Vietnamese soldiers were pulled out. However, armed resistance groups opposed to the Vietnamese-installed PRK government claimed that Vietnamese troops were still operating on Kampuchean soil long after September 1989. For example, non-communist groups engaging in land-grab operations in western Kampuchea after the withdrawal reported clashes with elite Vietnamese Special Forces near Tamar Puok along Route 69. Then, in March 1991, Vietnamese units were reported to have re-entered Kampot Province to defeat a Khmer Rouge offensive. Despite such claims, on 23 October 1991, the Vietnamese Government signed the Paris Peace Agreement, which aimed to restore peace in Kampuchea. Aftermath Paris Peace Agreement On 14 January 1985, Hun Sen was appointed Prime Minister of the People's Republic of Kampuchea and began peace talks with the factions of the Coalition Government of Democratic Kampuchea. Between 2–4 December 1987, Hun Sen met with Sihanouk at Fère-en-Tardenois in France to discuss the future of Kampuchea. Further talks occurred between 20–21 January 1988, and Hun Sen offered Sihanouk a position within the Kampuchean Government on the