Most people in Cambodia still hate and even hate Vietnamese.
Khmer Rouge: Left-wing Force in Cambodia. 1950 was founded in China, India, and 1966 was renamed the Cambodian Democratic Party. From 1975 to 1979, it became the ruling party in Cambodia and established a democratic Cambodian regime. During its three years and eight months of rule, it is estimated that 400,000 to 3 million people in Cambodia died of abnormal causes such as famine, labor, disease or persecution, which is called one of the greatest man-made disasters in the 20th century.
When Cambodia was still in the Khmer Rouge period of the pol pot regime, the current Cambodian Prime Minister Hun Sen and many senior officials of Hun Sen's generation in the current Cambodian government were insignificant at that time. Because of the tyranny of the Khmer Rouge, people and gods at home and abroad became angry. The regime was on the verge of collapse in just over three years, but without the intervention of external forces, other domestic forces were unable to overthrow the Khmer Rouge immediately. At this time, Hun Sen's wife used her relationship with the then Vietnamese authorities to invite Vietnamese soldiers to invade Cambodia and overthrow the first domino of the Khmer Rouge.
Nothing for nothing. Sending troops to Cambodia, as an agreement with Hun Sen faction at that time, Vietnam obtained a large piece of Cambodian territory represented by Fuguo Island (the location of the rescue command post established by Vietnam when Malaysia Airlines MH370 crashed), as a return to help Cambodia's vested interests represented by Hun Sen and others overthrow the old regime and establish a new regime.
Up to now, the common language of the residents of Fujian Island in Vietnam is still Cambodian, and their living customs are basically the same as those of Cambodia. Other land ceded to Vietnam is called "Lower Cambodia" by Cambodians. Every year, on the day when these lands are ceded, many people in Cambodia will spontaneously organize themselves to protest at government agencies, Vietnamese embassies and other related places to show national humiliation. In the minds of ordinary people in Cambodia, Vietnam invaded Cambodia that year, but now the ruling government.