In fact, people who has read Chinese books of tactics can understand China's actions.
- In 1974, CN used "趁火打劫" to took Paracel Islands when Vietnam engulfed in a civil war.
- In 1979, CN used "圍魏救趙" to helped Khmer Rouge (But I think you did not successfully).
- In 1988, CN used "遠交近攻" to took...