Zhao Weiji remembered that before he crossed over, he had read an article on the Internet analyzing the reasons for the failure of Shu Han during the Three Kingdoms period, which mentioned that an important reason for the failure of Shu Han was the loss of Jingzhou.

The loss of Jingzhou deprived Shu Han of an important passage out of Sichuan, and Zhuge Liang's six expeditions to Qishan and Jiang Wei's eight expeditions to the Central Plains were also caused by the loss of Jingzhou every time they went north to attack Chang'an.

Li Bai once had a poem about Shu: Shu is difficult, and it is difficult to go to the sky. From a military point of view, Shu is easy to defend and difficult to attack, and the army outside does not want to come in easily. But in this way, another problem arises, that is, the army of Shu should not want to go out easily.

Shuzhong is suitable for a local secession regime, people from outside don't want to come in, I don't go out, shut the door and call the king, wouldn't it be happy.

But now Li Shun in Shu doesn't think like this, as the rebel army gradually grows, he Li Shun gradually has a kind of idea of fighting Xichuan and competing with Zhao Song. So how to get out of Sichuan has become the biggest problem for the king of Xinshu.

Generally speaking, there are two roads out of Sichuan, one is to go north to Hanzhong, and the other is to go down the river out of Yuzhou and then to Jingzhou.

The problem is that Li Shun can't get out of these two roads now, and if he goes to Hanzhong, now Jianmen Pass is still in the hands of the officials and soldiers, and it is difficult to take it for a while due to the heavy rain. If you go down the river, you will face a new problem, and there are warships over there. Without a warship, don't even think about going down the river to take Jingzhou. The current Jingzhou garrison has mobilized all its troops to the Jingchuan border to defend it, and the rebel army has fought several times with the official army on the border, but the result is that the official army has blocked the way and cannot get out at all.

In desperation, Li Shun had no choice but to return his gaze to the Jianmen Pass, which had become a pass that he had to win, because only by winning the Jianmen Pass could his Dashu regime advance and retreat.

But Li Shun is not a man hanged from a tree, and while reconcentrating his forces to capture the Sword Gate, he also began to build a warship, but it takes time to build a warship, so now the Sword Gate has become the focus of contention between the two parties.

……

"Brothers, hurry up, we don't have much time." At this time, it is natural that Li Jiguang, who is leading the leading team, is urging the army.

With the strong mobility of the cavalry, Li Jiguang's troops were the first to reach Hanzhong. After arriving in Hanzhong, he received news from Jianmen that due to the heavy rain in Sichuan, the rebels temporarily stopped attacking.

The arrival of this news made Li Jiguang really relieved, although the vanguard had already arrived in Hanzhong, but the next road was not so easy to walk, and the road from Hanzhong to Jianmen was only a rugged mountain road. At this time, the advantage of cavalry power has disappeared, and the rest can only rush like infantry.

At this time, God's help gave Li Jiguang's troops extra time to march, and I have to say that God blessed.

"How far are we from the Sword Gate?" Li Jiguang asked the veteran brought out of Hanzhong on the side.

"Back to the general, there are still three hundred miles to go."

As soon as Li Jiguang heard the veteran's answer, his head was big, and with the current speed of only fifteen miles a day, it would take at least twenty days to reach Jianmen Pass, and he didn't know if the defenders of Jianmen Pass could withstand it.

……

Just as Li Jiguang's troops were rushing towards Jianmen Pass at full speed, Li Shun's rebel army also began to regroup in Langzhong, and their goal was also Jianmen Pass.

But the problem they faced was heavy rain, and the continuous heavy rain had been pouring down in Shu for more than 20 days. Due to the obstruction of the mountains, the dark clouds that caused the heavy rain did not drift north towards Hanzhong, but kept circling around the Chengdu Plain.

It may be that God is really unhappy with the drought that lasted for seven or eight months before Shudi, so at this time, the Dragon King is trying his best to make up for his mistakes. After the continuous rain and clouds, Shu ushered in the wettest April in ten years.

"You immortal board, it's going to rain for a long time?" Zhang Yu, the general of Dashu, who was about to be driven crazy by the continuous rain, has not stopped cursing at God in the past three days.

"Scolding, scolding, scolding, you know how to scold all day long, you scold so much and use a hammer." Also scolding on the side was another general of Dashu, Wang Cormorant.

"I also know that I don't care if I use the ball, but it has rained for so many days in a row, and Lao Tzu is about to get mold. And the rain has been falling, when will the old men send troops? ”

From the conversation between these two rebel generals, it can also be seen that in fact, they are also anxious here, and they are even more anxious than Li Jiguang. Because they don't have effective outside sources now, they don't know whether the imperial court has sent troops to suppress it, and if so, how many people have come, and where have they gone?

Although the rebel army has now taken almost the entire territory of Shudi, it is unstoppable, and the team is constantly growing. The new leader even established a regime. However, in the eyes of the top brass of the rebel army, the rebel army at this time was not as glamorous as it seemed. First of all, for the victory of the official family, there is actually a lot of water in it, not to mention that the combat effectiveness of the box army is very different from that of the forbidden army. Even the victory of the Xiang army was based on the victory of the enemy in the open and the dark.

Therefore, although the current Dashu regime seems to be in fact, it is actually blocked in Shu, and they who are eager for further development must quickly take the gateway to Shu no matter what.

After another five days in the rain, the rain finally showed signs of stopping.

"Lao Zhang, hurry up and get ready, it seems that the rain is finally going to stop." Just when Zhang Yu was still bored in Langzhong's residence, Wang Cormorant suddenly walked in and said that.

"Immortal Banban, the rain is finally going to stop, go Lao Wang, go find all the brothers, we are ready to go." As soon as he heard that the rain was about to stop, Zhang Yu immediately became excited, and immediately pulled the king cormorant and ran towards the garrison of the army.

Sure enough, in the afternoon of that day, the rain finally stopped, and the two generals of the rebel army raised their troops and advanced towards Jianmen Pass without saying a word.

……

The Jianmen Pass also learned the news that the rain in Shuzhong had stopped, and the generals guarding the pass knew that once the rain stopped, it would mean that the arrival of the rebels would not be far away.

At this time, the only thing he could do was to prepare his army for battle, and pray for reinforcements from the imperial court to come quickly.

Five days later, the rebels finally reached the Sword Gate.

The rebels who arrived at the Jianmen Pass immediately launched an attack on the pass, and the tide-like soldiers began to flock to the first Xiongguan in Shu.

However, after a round of attacks, the sergeants of the rebel army deeply realized that the first Xiongguan in Shu was not in vain.

Jianmen Pass was built in a narrow valley between the two mountains, and the entire pass completely blocked the valley between the two mountains. The city wall is connected to the mountain, and there is not a trace of flaw.

The mountain is vertical and steep, and it is impossible to bypass the Jianmen Pass by climbing the mountain wall.

So this situation of being a husband and a wife is not allowed to open is formed here.

The narrowness of the valley made it possible for the rebels to attack Jianmen Pass in a narrow formation, but the strength of the attack was greatly weakened, and the defenders of the pass easily shot the vanguard by relying on the terrain. The rebels' general offensive had the implication that it was forced to turn into a refueling tactic. The rebels suffered heavy losses.

"Lao Zhang, we can't fight like this, you look at how many people in front of you have died, and the people on the city wall don't have any."

"It makes sense, if this kind of fight continues, no matter how many people there are, it will be useless, let the people in front come back first, and then we will find a way."

Seeing the heavy losses of the attack, the two had no choice but to withdraw the rebel army first and then make plans.

On the other hand, although the defenders of Jianmen seem to be relatively relaxed, in fact, they can only be described as strong and middle-class, although the battle attrition is very small, but now one of the biggest problems faced by Jianmen is that there is a shortage of food, grass and arrows.

In the past, the material replenishment of Jianmen relied on the support of Shu in the south, because Shu was rich in products, and the way to Jianmen was much more convenient.

However, from the beginning of the uprising in Sichuan, the material supply of Jianmen was gradually cut off, and in desperation, he could only rely on Hanzhong to supply Jianmen.

But the problem is that Hanzhong is relatively far away from Jianmen, and the mountain roads are rugged and difficult to pass, so the replenishment of materials in Hanzhong is slow and scarce. Now the reserves in the Sword Gate will last for another ten days at most, and if Li Jiguang does not bring people here after ten days, the final fate of the Sword Gate will be lost.

……

"Quick, brothers, we're halfway there, let's get more fuel. The robes of the Sword Gate are still waiting for us. This is the first time that Li Jiguang has urged and encouraged him for more than ten days.

The news of the war on the Jianmen side has already come, and Li Jiguang doesn't know how long the Jianmen can last, but from the news he got from Hanzhong, it is estimated that it will not be more than ten days.

Of course, Li Jiguang knew that there was no time to delay, but the army really couldn't speed up anymore, because in addition to the rugged mountain roads and other reasons, Li Jiguang's vanguard was also responsible for supplying to Jianmen, and a large amount of grain and grass equipment also slowed down the marching speed of the army.

"Is there any other way to speed up the march, or some other way closer?" Li Jiguang, who was really anxious, could only ask the veterans in Hanzhong to see if he could come up with some ideas.

"General Hui, there is really no, the only road that can be passed by the army is this one."

Li Jiguang, who had no choice, could only continue to urge the team to speed up.

And just when he was still marching towards the Sword Gate, the rebels launched a second attack on the Sword Gate, and this attack was obviously different from the last time. Jianmen Guan began to be a little unbearable.