When the Pathet Lao took power in 1975, Hmong communities that had fought with the CIA-backed irregular forces during the war in Laos were exposed to reprisals, and their leadership was evacuated or fled. More than 200,000 Hmong left Laos over the following decades, initially crossing the Mekong into Thai camps such as Ban Vinai; the Migration Policy Institute attributes the exodus to post-war repression of past and continuing resistance activity alongside collectivisation failures and drought. Around 90 per cent of those recognised as refugees were resettled in the United States. Official Thai camps closed in the mid-1990s and the residual community at the Wat Tham Krabok monastery was resettled from 2004. Groups remaining in the Lao highlands were still subject to military operations decades later: Amnesty International recorded an attack near Vang Vieng that killed at least 26 people, mostly women and children, which the Lao government denied, and documented the forcible return of Hmong from Thailand into incommunicado detention.
The Lao People's Democratic Republic pursued Hmong communities associated with the US-backed wartime resistance, driving them into Thailand or into hiding in the highlands
Estimates of Laos's Hmong population in 1975 cluster around 300,000-350,000 within a national population of about 3 million. Roughly 100,000-120,000 crossed into Thailand in the years after 1975, with continued flight into the 1990s and the closure of Wat Tham Krabok in 2004-05; about a third of the Hmong population is generally said to have left the country.
No agreed death toll exists. Deaths occurred in flight, in the Thai camps and in the highland groups over three decades, but the sources cited here quantify only individual incidents, such as the attack near Vang Vieng in which Amnesty International recorded at least 26 people killed; Lao government denials and the inaccessibility of the highlands prevent any aggregate figure.
Amnesty International documented incommunicado detention and unacknowledged whereabouts of Hmong forcibly returned from Thailand in 2005 and 2006.
Laos, Thailand