章武元年(公元221年)七月,蜀汉皇帝刘备为报孙吴袭夺荆州,杀害关羽之仇,不听群臣劝谏,亲率蜀国大军伐吴。人称“刘备负气东征”。刘备此次东征,不仅未能取胜,反遭孙吴“无名”将领陆逊所率军队的重创,使蜀国损兵折将,连刘备本人也因惊吓、羞愧、劳累而染病不起,一命呜呼,从而使蜀国元气大伤,也使其复兴汉室的计划落空。对于刘备此次东征,史书上是这样记载的:“先主既即尊号,将东征孙权以复关羽之耻,群臣多谏”[1],还记载了翊军将军赵云和从事祭 Zhang Wu first year (AD 221) July, Shu Liu Han emperor for the capture of Sun Wu Sun Wu, killing Guan Yu's hatred, do not listen to the ministers advise, the rate of invading army Wu Shu. People called “Liu Bei negative levy ”. Liu Bei was not only unable to win this victory, but also against the army led by Lu Xun, an “unnamed” general, and destroyed the Shu army. Even Liu Bei himself was shocked, ashamed, and overworked, So that the strength of the Shu country, but also to revive the plan Han defeat. For the Beibuchi the Eastern Expedition, the history books are recorded as follows: “The lord is not only the honored number, which will lead to the right of Sun Quan to conceal Guan Yu's shame, the ministers remonstrance” [1], but also records General Yi Jun Zhao Yun and Engaged in sacrifice