Ran Min
When he heard of the Jie revolt against him, Ran Min issued his infamous "extermination order", in which he called on the (Han) Chinese to kill all the Wǔ Hú. The Wǔ Hú had conquered Ran Wei half a century earlier. The effect of Ran Min's order was immense; some 200,000 Jie were killed in Ye city (the Wei capital [邺城]) in a few days, and brutal fighting broke out between Chinese and Wǔ Hú throughout North China. Ran Min's army also killed some 400,000 White Xiongnus.