In the twenty-fourth year of Jian'an (219), in the leap October, Guan Yu took Sun Quan's grain and rice in Xiangguan without authorization because of the lack of grain and grass, and after Sun Quan learned about it, he finally decided to send Lü Meng, Lu Xun and others to crusade against Nanjun and seize Guan Yu's rear public security, Jiangling and other important towns.

After that, Jingzhou was basically owned by Sun Quan.

【Koto Dispatch】

After Guan Yu flooded the Seventh Army, although he obtained a large number of prisoners and captured tens of thousands of men and horses, but also led to a shortage of grain and grass, at that time, Guan Yu in order to fight against Cao Cao, directly under the pretext of lack of food, took away the grain and grass transported by Wu to Xiangguan at the junction of Wu and Shu without authorization, to supplement himself, Sun Quan learned of this, no longer tolerated Guan Yu, and sent a large army to crusade.

When Sun Quan first attacked Nanjun, he planned to order the conquest generals Sun Jiao and Lü Meng to be the left and right governors respectively, such as Zhou Yu and Cheng Pu, but after Lü Meng learned about it, he directly went to Sun Quan and said: "If you think that the conquest general can do it, you should use him; If you think that I Lu Meng can do it, you should use me Lu Meng. In the past, Zhou Yu and Cheng Pu were the governors of the left and right departments, and they jointly attacked Jiangling. Although the big thing depends on Zhou Yu, and Cheng Pu believes that he is a veteran of the battlefield, and they are both governors, so the two are not in harmony and almost miss the national affairs, which is exactly what must be taken as a warning in front of us! ”

Sun Quan woke up and apologized to Lu Meng and said, "Let you be the governor of the capital, and order Sun Jiao to be the follow-up." At that time, Lü Meng directly sent troops to attack the public security and Jiangling in Nanjun, Lu Xun followed, and then divided the troops and drove straight in.

Earlier, Guan Yu in order to prevent Sun Quan, in order to prevent Sun Quan, arranged a lot of checkpoints on the border, once there is movement, the news can be quickly transmitted to Guan Yu, but when Lü Meng marched to Xunyang (now northeast of Guangji, Hubei), the elite soldiers were ambushed in camouflaged merchant ships, so that the soldiers wore white clothes, disguised as merchants, and recruited people to paddle and paddle, day and night, tracing the river and sailing, straight to Jiangling, everything was carried out very concealed and secretive, the Jingzhou soldiers stationed in the river defense were deceived by the disguised Lu Meng's corporal soldiers, caught off guard, and all were captured, When Lu Meng appeared, Nanjun was empty and fell into chaos, and Guan Yu, who was far away on the front line, could not get the news in time.

At that time, Nanjun Taishou Mi Fang (Lu Zhu's brother, Liu Bei's brother-in-law) was stationed in Jiangling, and the general Fu Shiren (called Shiren as soon as he said it) was stationed in the public security, and the two had always resented Guan Yu and despised them. At the beginning, Guan Yu led the troops to the battle, and Mi Fang and Fu Shiren were responsible for supplying grain, grass and military supplies, but the two were unwilling to go all out to rescue Guan Yu. When Guan Yu learned about it, he said, "I'll punish them when I go back." Both Mi and Shi were frightened, so Sun Quan secretly sent people to lure Mi and Shi to surrender, and the two sent people to meet Sun Quan.

According to the "Book of Wu", at that time, the general Dr. Ren was defending in the public security city, and Lü Meng asked Yu to turn over to persuade him to surrender. Yu climbed to the gate of the public security city and said to the guards guarding the gate, "I want to talk to your general." "Dr. Ren refused to meet.

Yu Fu then wrote: "A wise man can take precautions, a wise man can consider future disasters, know the way of gain and loss, is the principle of being a human being, know the way of survival and death, and can distinguish good and evil." Now that my Eastern Wu army has marched here, your scouts have no time to return, and the beacon fire has not had time to ignite, this is not providence, but there is an internal response. The general can't predict it in advance, and when the time comes, he can't seize it, and he guards the city surrounded by water on three sides alone without surrendering, and if he fights to the death, he destroys his family and exterminates his family, which becomes the laughing stock of the people of the world. If Huwei General Lu Meng goes straight to Nanjun, blocking the land passage and cutting off the way of life, according to the topography of this place, the general is like sitting on a dustpan, unable to escape, and surrendering is immoral, I feel uneasy for the general in private, I hope you can consider it carefully. ”

Dr. Jen received the letter and surrendered bitterly. Yu Chuan said to Lu Meng: "This is my plan to fight the soldiers, in order to prevent Dr. Ren from waking up and repenting, I should march with Dr. Ren, and leave troops to guard the public security city." So Lü Meng took Dr. Ren to the southern county town. Nanjun guarded Mi Fang to defend the city, and Lu Meng asked Dr. Ren to come forward to persuade him to surrender, so Mi Fang also surrendered.

According to the record of "Wu Lu", there was a fire in the city of Nanjun and weapons were burned. Guan Yu punished Mi Fang for this, Mi Fang was afraid, Sun Quan heard about it and persuaded Mi Fang to surrender, and Mi Fang secretly agreed. When Lü Meng attacked Nanjun, he prepared a banquet and surrendered out of the city.

Historically, Yu Tuo should not have participated in this battle, and earlier he was exiled for repeatedly admonishing and offending Sun Quan, and when Lü Meng learned about it, he asked Yu Tuo to follow him on the grounds that Yu Tuo was also a medical practitioner, so as to free Yu Tuo. Later, after Mi Fang surrendered, Lü Meng did not enter the county town, but celebrated on the beach, Yu Fu said to Lü Meng: "Now that only General Mi is the only one who is dedicated to surrendering, how can all the people in the city be trustworthy?" Why don't you hurry into the city and take control of it? Lu Meng immediately listened to him. At that time, there were indeed people in the city who planned to ambush and attack the Wu army, but fortunately, it did not succeed thanks to Yu Xuan's suggestion.

The grace of a drop of water is reciprocated by a spring. Lu Meng helped Yu turn once, and Yu turned over to help Lu Meng persuade Dr. Ren to surrender and get Mi Fang, this wave can be said to have made a lot of money.

In this way, Guan Yu's hometown Jiangling, Gong'an and other places fell, but this was not the end, after occupying Jiangling and other places, Lu Xun further expanded the results of the battle, and cut off Guan Yu's back road back to Yizhou.

After Lü Meng occupied Jiangling, Lu Xun was awarded the title of Fubian General and the Marquis of Huating because of his military exploits and concurrently served as the Taishou of Yidu. Later, Liu Bei's appointed Yidu Taishou Fan You abandoned the city and fled, and the mayors of the cities and the leaders of the ethnic minorities surrendered one after another. Lu Xun asked for gold, silver and bronze seals to be given to those who had just surrendered and surrendered.

In November of the twenty-fourth year of Jian'an (219). Lu Xun sent generals Li Yi and Xie Jing to lead 3,000 troops to attack the Shu generals Zhan Yan and Chen Feng. Li Yi led the naval army, Xie Jing led the infantry, cut off the dangerous places, and quickly defeated Zhan Yan and others, Chen Feng was captured and surrendered. Then he attacked Deng Fu and Guo Mu of Nanxiang in Fangling, and defeated them. Zigui's Hao clan Wenbu, Deng Kai and other people gathered thousands of ethnic minority soldiers to connect the Shu Kingdom. Lu Xun deployed Xie Jing to defeat Wen Bu and Deng Kai. Wen Bu and Deng Kai fled, and Shu appointed them generals. Lu Xun sent people to lure them, and Wen Bu led the army to surrender again. Lu Xun killed, captured, and surrendered before and after, repeatedly tens of thousands of people.

Regarding the number of "tens of thousands of people", it should include all the results won by Lu Xun during his follow-up with Lu Meng and during his own troops, including not only Guan Yu's soldiers in Jingzhou, but also other officials, etc., among which the water is relatively large, after all, the combatable soldiers in Jingzhou at that time have basically been transferred to the front line of Xiangfan by Guan Yu, so Lu Meng and Lu Xun can occupy Guan Yu's rear so easily.

After that, Sun Quan further appointed Lu Xun as the right protector and the general of Zhenxi, and was named Lou Hou, and led his troops to garrison Yiling and guard the mouth of the gorge, thus cutting off Guan Yu's back road.