The noxious effects of the poppy The region of northern Thailand extends for over a thousand miles, and approximately half a million minority people from ethnic groups such as the Hmong, Yao and Lahu, as well as immigrants from mainland China, live there.
泰北山區綿延千里，大約有五十萬的苗、傜、目色…… 等少數民族及中國難胞居住其間。