Yuan Shao as the commander-in-chief, a role which Yuan reluctantly accepted. Yuan Shao then put Yuan Shu in charge of provisions, and appointed Sun Jian as the vanguard to attack Sishui Pass. Dissolution While restoring order in Luoyang, Sun Jian was alerted by his men that there is light faintly emitting from a well. He ordered to retrieve whatever was in the well, and they found a dead woman with the Imperial Seal in a silk bag around her neck. As advised by Cheng Pu, Sun Jian kept the Seal for himself and warned his men not to reveal anything about the discovery. Unfortunately for Sun Jian, one of his soldiers went and told Yuan Shao about it, and was heavily rewarded. During a meeting on the following day, Sun Jian cited health problems as an excuse to return to Changsha, to which Yuan Shao remarked sarcastically, "I know you're ill because of the Imperial Seal", causing Sun to be stunned. After rounds of accusations and denials, Yuan Shao and Sun Jian's men drew swords in preparation for a fight, but the conflict was defused by the rest of the coalition members. Sun Jian then quickly fled from Luoyang with his men. In anger, Yuan Shao sent a letter to Liu Biao of Jing Province, asking Liu Biao to intercept Sun on the way and take him into custody. This gave rise to the conflict between Sun Jian and Liu Biao, which eventually culminated in the death of Sun at the Battle of Xiangyang. The next day, Cao Cao returned to the main camp from his defeat in Xingyang. He lamented at the lack of motivation within the coalition and left as well. Gongsun Zan told Liu Bei, "Yuan Shao is an incapable leader, and together there will be strife, we should leave", and so they also pulled their forces from the alliance and retreated north. Seeing everyone had dispersed, Yuan Shao dismantled the camps and led his army back to his base. Notes References Chen, Shou. Records of the Three Kingdoms (Sanguozhi). de Crespigny, Rafe (1990). "Generals of the South" Faculty of Asian Studies, The Australian National University, Canberra. Internet edition 2004. de Crespigny, Rafe (1996). "To Establish Peace: being the Chronicle of the Later Han dynasty for the years 189 to 220 AD as recorded in Chapters 59 to 69 of the Zizhi tongjian of Sima Guang". Volume