In 221 AD, Liu Bei launched an all-out military attack on Eastern Wu with his shu Han family belongings that he had accumulated for many years, and the battle finally ended in a disastrous defeat of the Shu Han army led by Liu Bei, which not only seriously damaged the national strength of Shu Han, but also killed Brother Xuan De in the White Emperor's city!

Some people say that if this war had been fought by the Great Strategist Fa Xiaozhi, Liu Bei would not have lost! Is this really the case? Today we will explore:
First, why did Liu Bei launch a war against Eastern Wu!
Before discussing, let's first find out why Liu Bei started this war! Some people say that Liu Bei was killed by Lü Meng because of his second brother Guan Yu, and he was very sad! Later, because Fan Jiang and others who assassinated Zhang Fei surrendered to Eastern Wu, Liu Bei made up his mind to avenge Guan Yu Zhang Fei before attacking Eastern Wu!
Personally, I think that Liu Xuande, who may be the eldest brother, went out to attack Eastern Wu and had the element of avenging Guan Yu Zhang Fei in his heart, but it was definitely not the main reason! Why?
Imagine who Liu Bei is, he is a politician, an emperor, a grassroots leader who crawled out of the pile of dead people; he is a man with a realm, he is not a gangster on the street, who will he avenge and launch a national war, so emotional? Obviously not!
Therefore, he did everything for the national interest and political purposes, just like before Brother Xuan De became famous, he often hung up his mouth after he was the King of Zhongshan Jing, all for political purposes, to do rendering!
In the same way, Liu Bei's attack on Eastern Wu was the same, and it was only after he weighed the pros and cons that he came up with the fact that attacking Eastern Wu would be beneficial to himself before making such a big military deployment!
It is a pity that Liu Bei attacked Eastern Wu under the circumstances of being famous, met such a military wizard as Lu Xun, and suffered defeat!
Second, with the Law of Filial Piety, will Liu Bei really not lose?
Fa Zheng, as Liu Bei's primary contributor to obtaining the southwestern territory, was not Liu Bei's subordinate at the beginning; to put it bluntly, Fa Zheng was a military strategist who betrayed the lord, jumped to Liu Bei's account, and incidentally stabbed the original master Liu Zhang in the back!
Some people say that Fa is a military wizard, and military ability is above Zhuge Liang. Here we will not discuss his military talents, but from the psychological level, to see if Liu Bei will win when he fights Eastern Wu.
Just imagine, from the psychological point of view of Fazheng to think about the problem, he himself as a job-hopping person, because of the betrayal of his original protagonist, jumped to Liu Bei's account, got Liu Bei's reuse!
Liu Bei took him to attack Eastern Wu and serve as a military master, as his point of view, would he help Liu Bei win the Battle of Yiling? Obviously not!
As a Fazheng, he would definitely think of one that would make Liu Bei comfortable, and at the same time would not be assisted by Liu Bei's strategy of killing donkeys and rabbits and dead dogs! Just like Sima Yi knew that Zhuge Liang was guarding the empty city and did not go in, it was the same truth!
epilogue:
Therefore, liu bei attacked Eastern Wu, and with the law in place, Liu Bei could not win the war. It is just that there is a law, and Fa Xiaozhi will point out those low-level mistakes made by Liu Bei in the march and battle! Even Fa Zheng would come up with some strategies at the beginning to let Liu Bei win a small victory in order to consolidate his position in Shu Han!