Cleansing the Class Ranks

Cleansing the Class Ranks (Chinese: 清理阶级队伍, Pinyin: Qīnglǐ jiējí duìwǔ), or Cleansing of Class Ranks Campaigns, was a Maoist campaign during China's Cultural Revolution. The primary purpose of the movement was to eliminate "class enemies who have sneaked into the revolutionary organization", namely "traitors, spies, capitalist roaders, counter-revolutionaries and members of the Five Black Categories".

Source: Wikipedia — Cleansing the Class Ranks (CC BY-SA 4.0)