https://en.wikipedia.org/wiki/Qin_Er_Shi
Qin Er Shi foolishly [tone] tried to have the Qin general responsible, Zhang Han, killed, which led to the surrender and later to the live burial of 200,000 Qin troops. In total, Qin lost over 300,000 men. Even then, Qin Er Shi failed to take the defeat seriously, as …