Heng Samrin
Large influxes of Cambodian refugees took place between 1979 and 1980, after Vietnamese troops invaded Cambodia and which the Heng Samrin regime overthrew Pol Pot's Khmer Rouge regime in December 1978, In late 1979, in pursuit of a better life, thousands of Cambodians refugees, victims of a political tragedy that has shocked the world, migrate to Thailand, fleeing war, starvation and disease.