扼喉撫背 [－－抚－]

Jyutping aak1 hau4 fu2 bui3
Pinyin è hóu fǔ bèi

Definitions (CC-CEDICT)
  1. lit. to strangle the front and press the back (idiom)
  2. fig. to occupy all key points (military)
Definitions (Wiktionary)
  1. phrase, idiomatic
    to hold the best strategic positions which will render the enemy helpless; to occupy all military key points