The document summarizes the devastating periods of conflict experienced in Southeast Asian countries such as Cambodia, Thailand, Vietnam, and Laos. In Cambodia, around 25% of the population died during the Khmer Rouge regime through execution, starvation, or preventable causes. The notorious S-21 prison and Killing Fields are reminders of Cambodia's dark past. Thailand suffered during the Japanese invasion of World War 2 as many perished building the Death Railway. In Vietnam, the long war between North and South involved American forces and still impacts the country through the effects of Agent Orange. Laos experienced nine years of heavy bombing that left huge parts devastated, and unexploded ordnance remains a daily threat today.