In 221 AD, Liu Bei launched a battle of Yiling against Soochow. At the beginning of the war, Liu Bei sent generals Wu Ban, Feng Xi, and Zhang Nan to lead about 30,000 people as the vanguard to seize the Xiakou, invade the Wu territory, defeat Wu Jun Li Yi and Liu Abu in Wudi, and occupy Zigui. In order to prevent Cao Wei from taking the opportunity to attack, Liu Bei sent Zhenbei general Huang Quan to be stationed on the north bank of the Yangtze River, and sent his servant Ma Liang to Wuling to fight for the local tribal leader Shamo Ke to fight with the army of Shuhan. After that, Sun Quan ordered Lu Xun to be the chief governor and asked Lu Xun to choose 50,000 soldiers to defend against Liu Bei. At that time, Lu Xun successfully trapped Liu Bei's army in the Yiling area, looking for fighters, and defeating Liu Bei by burning a company camp, thus defeating the tens of thousands of elite troops brought by Liu Bei. After the war, Liu Bei returned with his body. It can be seen that the Shu Han army may die or surrender, and suffered heavy losses. Since the Shu Han suffered heavy losses in the Yiling battle, why after this, Soochow could not help it.Invaded Shuhan and annexed Yizhou?
Some people think that this naturally has a lot to do with Cao Pi After all, after the Battle of Yiling, Cao Pi once asked Sun Quan to send a proton to show that Sun Quan was indeed surrendered to Cao Wei. However, Sun Quan repeatedly shied away, which made Cao Pi not feel Sun Quan’s sincerity. Under such circumstances, Cao Pi sent three Lu Dajun attacked Soochow. At that time Cao Pi came from Xu ChangnanThey sent all the troops to attack together. Cao Zhen, Zhang Xi, and Cao Xiu defeated Sun Sheng, Dapo Lu Fan, and burned Zhuge Jin. They almost captured Jiangling. Although Sun Quan refused to defend Linjiang, several fronts may be defeated. In the defeat, only Zhu Ran won. Seeing Cao Pi's victory in sight, but unexpectedly encountered the epidemic, Sun Quan took the opportunity to resend an envoy to Cao Wei to pay tribute. The two sides made peace before Cao Pi retired. It can be seen that if Cao Pi hadn't attacked Soochow at that time, I'm afraid Soochow could really attack Shuhan.
But in fact, in addition to Cao Pi, Liu Bei’s attitude at the time also played a vital role. Although Cao Pi attacked Dongwu, Liu Bei had I wrote to Lu Xun, saying that he was going to be a shame, but in his reply, Lu Xun persuaded Liu Bei to turn back and not come to die. It seems that Lu Xun is very confident in the strength of the Soochow army.
But in fact, because Liu Bei was in Yongan at that time, and after the Yiling battle, Soochow Wu didn’t understand the strength of the Shu Han, so even if the battle for Jiangling lasted for half a year Sun Quan still did not mobilize Lu Xun to come to the front line to command the defeat of Wei Jun, which shows that Sun Quan attaches great importance to Liu Bei. It is precisely because Liu Bei is sitting on the border that Lu Xun has no way of attacking Shu Han for a time, and thus won Yizhou.
The author believes that for Sun Quan, at that time Cao Pi's soldiers were divided into three groups and aggressively attacked. He was somewhat difficult to parry, but Lu Xun On Liu Bei’s side, but due to Liu Bei’s resolute attitude, Soochow didn’t know the strength of Shu Han, so So Dong Wu naturally couldn’t attack Shu Han at that time.