He Qi
When Sun Ce ordered the local leaders in the southern counties under his control to recruit 5,000 soldiers for He Qi, one of them refused to comply because he despised He Qi, who came from a lesser social background. After He Qi executed that leader for defying the order, the other leaders quickly complied. Within two years, He Qi had defeated most of the hostile forces and killed some 6,000 enemies in the battles.