1978, Pol Pot used ten divisions to prepare for a full-scale invasion against Vietnam. In this context, on December 7, 1978, the Political Bureau of the Central Committee of the Communist Party of Vietnam and the Central Military Commission passed the decision to officially enter the Third Indochina War and overthrow Pol Pot regime. Instead of retreating to safer areas for long term guerrilla warfare right from the start, overestimating their own strength, the majority of the Kampuchean Revolutionary Army (KRA) forces faced the PAVN head on, only to be easily defeated by the far more experienced Vietnamese military within 2 weeks. The Khmer Rouge rapidly collapsed and was overthrown on 7 January 1979 as it fled across the Cambodia–Thailand border and went into hiding, thus ending the Cambodian Genocide as a whole. Memorial After the war, in 1979, the An Giang provincial government built a cemetery for the deceased in Ba Chuc. Every year on March 15 and 16 of the lunar calendar, collective sacrificial ceremonies were held for the deceased. The cemetery and the two temples used for the massacre are listed as national historical sites. In 2011, An Giang Province allocated 30 billion Vietnamese đồng to rebuild the cemetery for the victims. The cemetery covers an area of 5 hectares, including a 500-square-meter cemetery. The tomb and the memorial hall displays pictures and objects of the scene. The memorial hall displays photos of the scene and the spears, sticks and other weapons used by the Khmer Rouge to carry out the genocide, and the burial chamber contains the remains of 1,159 uncollected victims of the genocide, of which 1,017 skulls have been classified according to their age. and gender identification, including 29 infants, 88 girls aged 16–20, 155 females aged 21–44, 103 females aged 41–60, 86 females over 60, and 23 males aged 16–20, 79 males aged 21–40, 162 males aged 41–60, and 38 males over 60, The remains of the remaining victims were either buried by their relatives, or were left in the caves of Elephant Mountain. Because some of the holes were too deep to lift the remains out, relatives had to fill the holes with soil. References 1978 in Cambodia 1978 in Vietnam Conflicts in 1978 Massacres in 1978 April 1978 events in Asia History of An Giang Province Cambodia–Vietnam relations Cambodian genocide Khmer Rouge Massacres in Vietnam Military history of Cambodia Sino-Vietnamese War