以華制華 [－华－华]

Jyutping ji5 waa4 zai3 waa4
Pinyin yǐ huá zhì huá

Definitions (CC-CEDICT)
  1. use Chinese collaborators to subdue the Chinese (imperialist policy)
Definitions (Wiktionary)
  1. verb, of foreign powers
    to use Chinese people to subdue the Chinese