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Jyutping gaa2 dou6 fat6 gwik1
Pinyin jiǎ dào fā guó

Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    to make peace with a smaller enemy and use it as a springboard to attack another common enemy, before turning on the first

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Jyutping gaa2 dou6 fat6 gwik1
Pinyin jiǎ dào fá guó

Definitions (CC-CEDICT)
  1. to obtain safe passage to conquer the State of Guo
  2. to borrow the resources of an ally to attack a common enemy (idiom)
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    to make peace with a smaller enemy and use it as a springboard to attack another common enemy, before turning on the first
Examples (Wiktionary)
  1. Mandarin
    假道伐虢
    假道伐虢
    jiǎ dào fá guó
    • to obtain safe passage to conquer the State of Guo