干戈四起gān gē sì qǐ

fighting breaking out all over the country
❍ 我想天宝皇帝，只为宠爱了贵妃娘娘，朝欢暮乐，弄坏朝纲，致使～，生民涂炭。(洪昇《长生殿》)Just because he doted on Lady Yang,our former emperor spent all his time in pleasure and neglected affairs of state,with the result that there was a rebellion and the people suffered unspeakably.