Daga baya, Jihohin Cao da Song sun zama maƙiya da juna. Duke Jing na Song ya kama Duke Dao na Cao a shekara ta 515 kafin haihuwar Yesu kuma ya tsare shi a kurkuku har mutuwarsa. Bayan haka, rikici ya barke a Cao da magajin Duke Dao Duke Sheng na Cao da Duke Yin na Cao an kashe daya bayan daya. Duke Fei na Cao ya zama mai mulki kuma ya ci amanar Jihar Jin ta hanyar mamaye Jihar Song. A sakamakon haka, Duke Jing na Song ya kai wa Cao hari. Babu sojojin daga Jihar Jin da suka zo don ceto irin wannan Jihar Cao da aka hallaka a 487 BC bayan da aka kama Duke Fei na Cao. Tambaya: Waɗanne jihohi suka zama maƙiya da juna?
Jihohin Cao da Song