The Hmong of Vietnam

There have been a few posts relating to Vietnam; about the French heritage (and therefore the beret), Dong Ho painting and of course a few that mention American Green Berets. I am more interested in the 'civil side of the beret in Vietnam'.

I came upon this photograph through this web site.  A man who tells the story of how "his" Hmong people came through China from Mongolia and how they adopted the Basque beret.
Hard to get the full story with my French, but I appreciate the picture.