敗兵折將 [败－－将]

Jyutping baai6 bing1 zit3 zoeng3
Pinyin bài bīng zhé jiàng

Definitions (CC-CANTO)
  1. to suffer a major defeat resulting in the loss of many soldiers and generals
Definitions (Wiktionary)
  1. phrase, idiomatic
    to suffer a major defeat in battle resulting in the loss of a number of soldiers and generals