After taking Jiameng, go north to capture Guangyuan, as long as you attack Guangyuan, you can attack Baishui Pass with the direction of Hanzhong. As soon as the Baishui Pass was lowered, there were basically no obstacles in the northern part of Guanghan County and the subject country of Guanghan. When the Hanzhong army converges with Zitong to the south and attacks Fuxian, it can deter Mianzhuguan and attack Chengdu with Fu Youde on both sides.

Attacking Chengdu is the task of the north and middle routes, and the task of the soldiers and horses of the south route is to stabilize the south and the center.

You must know that the Nanban at this time was not strong, and although the Liu Yan and Liu Zhang periods boosted the momentum of the Nanban, they did not form a major disaster. Before Liu Bei entered Chengdu, Liu Zhang transferred a lot of soldiers here, which made Nanban begin to rise. After Liu Bei entered Chengdu, he didn't pay too much attention to Nanban, his eyes have always been in the Central Plains, which allowed Nanban to grow, and when Liu Chan period, it has become a disaster in Yizhou, so that Zhuge Liang had to solve Nanzhong first, so that he could rest assured that the Northern Expedition would be relieved.

Fu Youde continued up the river, took Pingdu, and then sent Wei Rui to capture Fuling. Wei Rui is the person that Zhang Yi is focusing on cultivating now, and he really has real talent and learning, and he has never made mistakes in doing things, but the credit is too small to promote too many official positions at all. Fu Youde knew Zhang Yi's thoughts, so he first asked him to lead his troops alone to attack Fuling and take a county seat, which also gave him a lot of credit.

Fuling is very easy to attack, after all, it is only a remote county. When Fu Youde captured Tong County and arrived at Jiangzhou City, Wei Rui chased after him.

Jiangzhou is the seat of Ba County, and it is also the location of Chongqing in the future, and the terrain here is very conducive to defense, so it will become the military town of Yizhou.

Yan Yan was too defensive for Ba County, Fu Youde attacked all counties in Ba County, how could Yan Yan not know that he had already strengthened the defense of Jiangzhou. and sent the news of Zhang Yi's attack to Chengdu.

When Fu Youde arrived at the city of Jiangzhou, he was attacked by Yan Yan. There are more than 20,000 soldiers in Jiangzhou, and there is a camp on the mountain outside the city. If Fu Youde attacks Jiangzhou, the camp will send troops to rescue, and if Fu Youde attacks the camp, Jiangzhou will send troops to rescue. However, when Fu Youde had just arrived in Jiangzhou and was still unstable, Yan Yan was like giving Fu Youde a dismissal, so that he would know that Yizhou was not unmanned.

However, Yan Yan miscalculated, even if Fu Youde's foothold was not stable, he still did not let Yan Yan take advantage.

Yan Yan rushed to kill and immediately led his troops to retreat. He found that he underestimated Fu Youde, he didn't expect the enemy army to be so elite, and he quickly counterattacked the raid. Half an hour later, he found that he had wounded far more soldiers than the enemy.

This made Yan Yan a little afraid, he didn't dare to divide the two camps anymore, because Fu Youde only needed to send a considerable number of troops to block the camp or Jiangzhou, and the rest of the troops would attack the other, and it would be difficult for him to do it on his side. So he decisively gave up the camp, and set a fire to burn the camp to the ground, and all the soldiers were brought into Jiangzhou, ready to defend to the death.

Yan Yan sent an envoy to Chengdu to report the situation in Jiangzhou.

Fu Youde did not attack immediately, but rested for three days. The reason why Shuzhong is difficult to be captured is actually because the mountain road is too difficult to walk, and the baggage cannot be transported. Although it can be eaten by the enemy, Ba County does not produce much food. All the way from Yufu, although there was some food, it was not enough for the 50,000 army to eat, only barely enough for 10,000 people to eat.

Fortunately, many of Zhang Yi's troops knew how to fish, and they were all transferred from the logistics troops. Zhang Yi knew that after entering Shu, food would be the biggest problem, so he deliberately transferred tens of thousands of logistics troops. Since you don't have food to eat, let's go fishing or hunting!

It is precisely because of this that Fu Youde was able to arrive in Jiangzhou twenty days after entering Shu. This road is too long, if Liu Bei hadn't deceived Liu Zhang first, it would have been basically impossible to storm it from Jiangzhou. Because the army came over and there was not enough food to eat, Zhuge Liang, Zhang Fei and others did not bring many troops when they entered Shu.

And in history, there are not many defenders in Ba County, maybe Liu Zhang did not have anything to do with guarding Jingzhou. Liu Zhang can be said to be very good to Liu Bei, and before inviting Liu Bei into Sichuan, he gave Liu Bei 4,000 men. Later, he gave Liu Bei thousands of men and horses, including a very precious thousand cavalry.

In addition to the soldiers and horses, Liu Zhang also gave Liu Bei a large amount of materials, which were calculated in hundreds of millions, which was very good. This shows how rich Yizhou is without war.

Fu Youde did not rush to attack the city, because he waited for the next batch of grain to be delivered, and at the same time, he also asked the logistics troops to go fishing and hunting, otherwise he would not be able to attack Jiangzhou at all.

Yan Yan also knew that Fu Youde had no food, but he didn't dare to go out of the city, for fear of falling into Fu Youde's strategy, because he didn't know how much food Fu Youde had left. If Fu Youde uses this to design him and defeat him, then all the food in Jiangzhou will belong to Fu Youde, which is enough to support Fu Youde to attack Chengdu.

Therefore, Yan Yan chose a conservative strategy and consumed Fu Youde, as long as Fu Youde was consumed to the point that there was no food, he would retreat.

In this way, the two parties can be said to be at peace.

Zhang Yi sent Fan Zhongyan to escort the grain and grass, because after taking Yizhou, Fan Zhongyan was the assassin of Yizhou. Yuzhang County is served by Zhang Honglai, Bajun is served by Quan Rou, Guanghan is served by Yu Tuo, Qianwei is served by Shiyi, Qiqi is served by Mi Zhu, Yizhou Taishou (Yizhou County is Taishou, Yizhou County is the Nanzhong region) is served by Wen Tianxiang, Yongchang is served by Meng Zhixiang, and Shu County is served by Fan Zhongyan.

In addition to the eight counties, there were three vassal states. The subject state of Shu County was guarded by Fu Youde, the subject state of Guanghan was garrisoned by Di Qing, and the subject state of Qianwei was garrisoned by Lin Fengxiang. These three vassal states were just right to defend against the Qiang people in the west and suppress the southern barbarians.

In about 20 days, Fan Zhongyan took a group of officials to Jiangzhou City and brought Fu Youde 200,000 pieces of grain, which was enough for Fu Youde to use for a period of time.

Yan Yan saw that Fu Youde had food shipped over, and he knew that the war was coming, and he waited a little longer, and then waited for the people he sent to Chengdu for so long, why was there no news yet. From Jiangzhou to Chengdu is less than 600 miles, if you are fast, it will only be two or three days to arrive, Chengdu should have received the news, did you send reinforcements over?

Yan Yan didn't know at all that there was already a disagreement in Chengdu City at this time, because they knew where to rescue. Because just a few days ago, Zitong and Jiameng were lost one after another, and in less than a day, Guanghan was also lost, and the road to Jiangzhou was cut off.