The Hmong-Mien languages are a group of languages spoken primarily in Southeast Asia, particularly in countries like China, Vietnam, and Laos. This language family consists of two main branches: Hmong and Mien. These languages are known for their complex tonal systems and unique phonetic features. Hmong-Mien languages are primarily used by the Hmong and Mien ethnic groups, who have rich cultural traditions. The languages are not widely spoken outside their communities, but they play a crucial role in preserving the cultural identity and heritage of these groups.