the Khmer Rouge. Thousands of tons of food provided by international relief organizations spoiled on the docks of Kompong Som. Food sent by aid organisations was often instead used to feed Vietnamese troops and Cambodians living under Vietnamese control. To resist the Vietnamese occupation of Kampuchea and the government which they installed, the Khmer Rouge called on the Kampuchean people to unite and fight the Vietnamese. However, due to the brutality which they had experienced under the deposed government, many Kampucheans believed that any political movement aimed at restoring national freedom must oppose both the Khmer Rouge and the Vietnamese. In response to such preconditions, two non-communist movements were formed to fight the Vietnamese occupation. The first group, a right-wing and pro-Western organisation, was formed in October 1979 by former Prime Minister Son Sann and was called the Khmer People's National Liberation Front (KPNLF). The KPNLF operated from several refugee camps on the Thai-Cambodian border, where it controlled thousands of civilians. At its peak, the armed branch of the KPNLF were estimated to have between 12,000 and 15,000 fighters, but a third of that number were lost through fighting and desertions during the Vietnamese dry season offensive of 1984–1985. Nonetheless, the KPNLF continued to operate in small groups, harassing the Vietnamese and their Kampuchean allies using guerrilla tactics. The other non-communist organisation was the National United Front for an Independent, Peaceful, Neutral, and Cooperative Cambodia, formed by Sihanouk and known by its French acronym FUNCINPEC. The organization was formed after Sihanouk had severed ties with the Khmer Rouge following his representation on its behalf at the UN Security Council. As the leader of FUNCINPEC, Sihanouk called on the UN General Assembly to expel Khmer Rouge representatives for their crimes while in power and to keep Kampuchea's seat at the UN vacant on the basis that neither the Khmer Rouge nor the Vietnamese-installed PRK had the mandate to represent the Kampuchean people. He also criticised ASEAN for its continued recognition of the Khmer Rouge, and specifically Thailand for enabling Chinese arms shipments to travel through its territory to supply the notorious communist group. The KPNLF and the FUNCINPEC were plagued by internal divisions caused by the lack of unity, leadership struggles, corruption and alleged abuses of human rights. In the early days of the Vietnamese occupation, Kampuchean resistance groups had limited contact with each other due to their differences. Even though