Lü Dai
In 215, when Sun Quan had a territorial dispute with his ally Liu Bei in Jing Province (covering present-day Hubei and Hunan), he ordered Lü Dai, with Sun Mao () and nine other officers as his deputies, to lead troops to seize control of the three commanderies of Changsha, Lingling (零陵; around present-day Yongzhou, Hunan) and Guiyang (桂陽; around present-day Chenzhou, Hunan). The officials in four counties – Ancheng, You, Yongxin and Chaling – moved to Yinshan County (陰山縣; southeast of present-day Hengdong County, Hunan), where they declared hostility towards Lü Dai. In response, Lü Dai led his troops to besiege and attack Yinshan County, and succeeded in forcing the rebellious officials to surrender. The three commanderies in southern Jing Province thus came firmly under Sun Quan's control.