Possible Clues:

• Huns, e.g.
• East-of-the-Urals folks
• Kurds and Nepalis
• Japanese and Koreans
• Thais and Taiwanese, e.g
• Tet celebrants
• Mongol horde, e.g.
• Cambodians and Iranis
• Japanese et al.
• 10-Down's people, e.g.