《史记·七十列传·李斯列传》
这些都是离间诸侯国君臣关系的计策，接着，秦王就派良将随后攻打。
离其君臣之计，秦王乃使其良将随其後。
This was the strategy to sow discord in the relations between the monarch and his subjects in other vassal states. Then, the King of Qin sent good generals to launch an attack.