the Huai River back to the north, Lü Bu left Yuan Shu a letter: "You think that your army is powerful and you always boast of having mighty warriors under your command. You wanted to destroy me, but why did you change your decision every time? I may not be courageous, but I have dominated the Huainan region. Within a short period of time, you have become like a rat scurrying for shelter in Shouchun and you cannot emerge again. Where are your mighty warriors? You enjoy telling lies to everyone, but you cannot make everyone believe you. Since ancient times, people have employed the technique of sowing discontent between their enemies to overcome them. I am not the first person to use this strategy. I am still nearby so I can wait for your response." After Lü Bu crossed the Huai River, Yuan Shu personally led 5,000 soldiers to the riverbank. Lü Bu's forces, which were on the opposite end, laughed at their enemy and retreated. Conflict with Zang Ba Around the time, Xiao Jian (蕭建) served as the Chancellor (相) of Langya State and was stationed in Ju County. Xiao Jian, a conservative man, did not have any contact with Lü Bu. Lü Bu wrote to Xiao Jian: "Initially, everyone throughout the Empire took up arms for the purpose of eliminating Dong Zhuo. I killed Dong Zhuo and headed east, where I hoped to be able to borrow troops and return west to defend the Emperor and restore the capital Luoyang. However, the warlords were fighting among themselves and none of them were concerned about the state. I am from Wuyuan (五原), which is located more than 5,000 li away from Xu Province and is somewhere in the northwestern border. As of now, I came here not to fight for the southeastern lands. Ju and Xiapi are not far from each other so it is easy to maintain communication between them. You behave like you are an emperor in a commandery and a king in a county! In the past, when Yue Yi attacked the Qi state, he conquered over 70 cities in Qi, except for Ju and Jimo because of Tian Dan. I am not Yue Yi, and neither are you Tian Dan. You can seek the counsel of wise men on this letter." After receiving Lü Bu's letter, Xiao Jian ordered Ji Jian (齎牋) to present