"Those who previously served Liu Yao and Ze Rong will not be subject to questioning if they surrender. For those who wish to join the army, one man from each household is sufficient; those who are unwilling will not be compelled." Within one day, Sun Ce succeeded in rallying more than 20,000 troops and 1,000 warhorses. Meanwhile, Liu Yao and Ze Rong retreated to Yuzhang Commandery. Ze Rong used a scheme to kill Zhu Hao, the Administrator of Yuzhang Commandery, and take over the commandery. Liu Yao led an army from Pengze County (present-day Hukou County, Jiangxi) to attack Ze Rong. Ze Rong fled into the hills after his defeat and met his end at the hands of the natives. The Han central government then appointed Hua Xin as the new Administrator of Yuzhang Commandery to replace Zhu Hao. While these events were happening in Yuzhang Commandery, Zhu Zhi, one of Sun Ce's subordinates, defeated Xu Gong and seized control of Wu Commandery for his lord. Xu Gong escaped from Wu Commandery and joined the bandit leader Yan Baihu. Campaign against Wang Lang In 196, Sun Ce's subordinates advised him to attack Yan Baihu, but Sun Ce said, "Yan Baihu and his bandits do not have great aspirations. I'll capture them later eventually." Sun Ce then led his troops on a detour, bypassing Yan Baihu's position at the south of Wu Commandery, and proceeded to attack Wang Lang, the Administrator of Kuaiji Commandery along the southern shore of Hangzhou Bay. Yu Fan, an officer under Wang Lang, advised his lord to avoid Sun Ce since they were weaker in terms of military strength. As Sun Ce advanced towards Kuaiji Commandery, Wang Lang moved to defend his territory on the line of the Qiantang estuary at the head of Hangzhou Bay. During his march through Wu Commandery, Sun Ce used the opportunity to rally support from his connections in the region. Sun Ce's uncle, Sun Jing, responded and joined him at Qiantang. Wang Lang's army was stationed at Guling, where Sun Ce attempted several times to force his way through but failed. Sun Ce then heeded Sun Jing's suggestion and arranged for his uncle to lead a detachment south to a river crossing at Zhadu County (southwest of present-day Xiaoshan District, Zhejiang). From there, Sun Jing headed back to attack Wang Lang's forces at Gaoqian County (northwest of present-day Shaoxing, Zhejiang).