Thanks so much for this information! 
 Here is something interesting. HIll people and minority cultures of Laos such as Hmong, Yao (Mien), Dao, Shan, and several Tibeto-Burman speaking peoples have lived in isolated regions of Laos for many years. 
 Where is Laos located relatively? 
 Can you tell me about the history of Laos? 
 Yes! Did you know that between 1964 and 1973, the United States dropped more than two million tons of bombs on Laos? This was nearly equal to the 2.1 million tons the US dropped on Europe and Asia during World War II. This makes Laos the most heavily bombed country in history relative to the size of its population. The New York Times noted it was nearly a ton for every person in Laos.
Yes! Did you know that between 1964 and 1973, the United States dropped more than two million tons of bombs on Laos? This was nearly equal to the 2.1 million tons the US dropped on Europe and Asia during World War II. This makes Laos the most heavily bombed country in history relative to the size of its population. The New York Times noted it was nearly a ton for every person in Laos.