The Hmong people are an ethnic group from from the mountainous regions of Vietnam, China, Laos, and Thailand. Hmong are also one of the sub-groups of the Miao ethnicity in southern China. Hmong groups began a gradual southward migration in the 18th century due to political unrest and to find more arable land. Hmong people are known to be fiercely independent and rich in their culture, art, religion, family life and martial history, and are distinguished by their dress.
Here is the current populations of the Hmong people throughout the world:
Below is a picture of a girl in traditonal Hmong dress which is a huge part of their culture:
Source: Wikipedia
Source: Wikipedia