This is a very sensitive topic and there is way too much information to put out there but to make it simple and understandable, here are the details and if you are interested in knowing more, please feel free to contact me.
The Hmong (aka the Miao) are tribal people who have always lived in the mountain tops of China. (I remembered in 4th grade when I read my history people and it had Miao people who had clothes similar to ours. I remember showing my mom and dad. The sad part, now that I think about it was that... it said that Miao meant barbarians and that the Miao are bad this and that. It was until I was older that the Miao was aka. Hmong)
Their resistance to Chinese assimilation led to gruesome killings that led some Hmong people to commit suicide, assimilate, or flee down south to SE Asian countries.
Most Hmong Americans today came from Laos to Thailand and then to the USA. (HOW WAS THIS POSSIBLE?)
During the Vietnam war when the Americans were losing, the American CIA sought help from us Hmong people. This was called the SECRET WAR. The Hmong were granted a life in America if they helped the Americans. The Hmong soldiers as young as 10 were fighting their lives to help save the American soldiers. It is estimated that 30 Hmong men died to save 1 American soldier. When the war came to an end in 1975, one of the most prominent heros Gen. Vang Pao and his soldiers along with other families came to the United States with the American soldiers going home.
This was the start of Hmong immigration to the USA. We, the Hmong, have only been in the USA for ~35 years.
Many Hmong people are still in China, Thailand, Vietnam, Laos, even in the jungles hiding from the Communist. As of right now, there ARE Hmong people who are being killed like animals. I feel so thankful hence the reason why most Hmong parents want their children to suceed so bad.
Here is a video of my University on Hmong Human Rights. We set up real pictures that are current to create awareness that even after the war has ended, it hasn't stopped for those left behind. They just want what was granted to them by the American CIA- "an American future." Our shirts on the back says :Dying to. This video has real footage of back in 1975 to presently.