盡忠報國 [尽－报国]

Jyutping zeon6 zung1 bou3 gwok3
Pinyin jìn zhōng bào guó

Definitions (粵典–words.hk)
  1. 動詞
    竭盡忠​誠報​效國家
    to serve one's country loyally
  2. 參看
    精忠報國