Cao Zhen's plan to preserve the living forces of Wei is understandable. It is true that Cao Wei also gathered 70,000 or 80,000 troops in Yongliang Erzhou, famous generals such as Cao Zhen, Zhang Jaw, Guo Huai and others, and military advisors also have Xin Bi, Du Xi and others.

But the war has reached this point, Xu Shu is a chess player in the end, and there are many strategies, strategies, and means, and the Shu Han army has exhausted the Cao Wei army, and the loss of the important town has made the Wei army cut into several sections along the Weishui line, if it were not for the ability of Zhang Jaw and other generals to be outstanding, and his subordinates are the Northwest Wei army that can fight well and has high morale, I am afraid that Cao Zhen will not be able to withdraw even if he wants to withdraw at this time.

Cao Zhen wanted to withdraw, and of course Xu Shu was willing to withdraw from Yongliang. At this time, the Wei army still had 50,000 soldiers left, plus countless county soldiers and Tuntian militia, and if they fought to the death, Shu Han would also suffer heavy losses. Shu Han's army was a patchwork, all based on Ma Chao's prestige and Xu Shu's methods, as well as the cumulative result of continuous victories. If there are really too many casualties, not to mention that you can't sit still in Yongliang, I am afraid that the armies of all ethnic groups who are helping the war at the moment will become the lifeline of Shu Han, and when the Qiang people, Di people, and Huns enter Kou Yongliang, Xu Shu will become a national sinner.

Moreover, Xu Shu did not want Cao Wei's main force to fight him to the death, and suddenly left the Central Plains and Luoyang, which were not garrisoned by Eastern Wu. Shu Han and Eastern Wu are different, what Eastern Wu lacks is people, as for the land, according to the area, Wu occupies half of the land in the whole world, as long as there is time to cultivate, there are countless cultivated land, if there is a population of the Central Plains, Eastern Wu will be invincible. What Shu Han lacks is land, and Yizhou aliens surround the local family and do not cooperate, and it is really helpless to set the capital of Chengdu, but as long as there is Yongliang land, Shu can jump out of the mountains and become the trend of Qin and Gaozu.

Therefore, Xu Shu left Cao Zhen a hole in the Wei army's encirclement network that could be broken through, so that the 50,000 Wei troops could return to the Central Plains safely to deal with the Wu army. But Xu Shu thought so. It doesn't mean that Li Yan is the same, Li Yan has a lot of power in his belly, and there are some flaws that must be reported, he was almost half hidden by Zhuge Liang and Jingzhou Group Yin before, how can he not retaliate at this time. So as a guard lieutenant of the Jingzhou department, Liu Yan, who was a general of the Zhongjun Division, led an army of 5,000 to garrison Wugong. Liu Yan is not from Jingzhou, but a general of the Qingxu system, but he has joined him when Zhuge Liang served as a military general, and he is also one of the few generals with military power in Zhuge Liang's hands, and his command is also the Shu army trained by Zhuge Liang. I don't want to, but there is no return.

To meet the Zhang Jaw army, but also in the consideration of crossing the Yellow River, Wugong City is Cao Zhen's ambition, after getting Zhang Jaw's return, Cao Zhen on the one hand ordered Zhang Jaw to be ready to retreat at any time, and on the other hand, let the great Sima Cao Ren's son Zhenbei General Cao Tai as the main general. Xiahou Yuan's son, Sima Xiahou He, led 10,000 troops to attack martial arts.

The martial arts battle was tragic, perhaps because Cao Tai learned from the experience of his cousin Cao Xiu in attacking Xiangyang. This time he came prepared.

What a rush, a ladder, a thunderbolt. Everything is available, anyway, it is on the Guanzhong Plain, backed by the "general logistics base" of Chang'an, and what you need is transported from Chang'an.

It can be said that the fragile city wall of Wugong has not withstood the stormy attack of the Wei army at all.

Although the power and accuracy of the Thunderbolt were far inferior to Wu's return cannon. However, Cao Tai and Xiahou He mobilized more than 200 vehicles from Chang'an at one time, and bombarded them day and night. The walls of martial arts are like old houses in disrepair, and under such a dark bombardment, almost every few hours. Then one of the walls was blown down. And all Liu Yan can do is to command the soldiers, like firefighters, where the city wall collapses, he leads the guards to carry the earth and tiles to fill which place.

Three days later, Wugong City was almost unrecognizable, except for the strongest main gate tower, there was no one in the city wall with a radius of several hundred zhang intact, like a pair of pants that could not be torn anymore, and patches were everywhere.

But what annoyed Cao Tai was that it was such a city that seemed to be on the verge of falling, and his more than 10,000 elite soldiers did not capture it for three days in a row. There was no other reason, he lost not because of low morale, nor because of insufficient troops, but because of the devilish and terrifying crossbow of the Han army.

Whenever a city wall was broken down, Xiahou, the governor of Shengcheng, and his brave soldiers, rushed forward desperately, trying to step on the Han army "migrant workers" who rushed to repair the city wall, at this time, there would be a crossbow formation of about 500 people.

They calmly and gracefully pushed and pulled, as chic and natural as eating and drinking, and then, within ten seconds, more than 5,000 crossbow arrows stained with the poison of the Southern Barbarians flew like a flock of birds passing by in the sky, and then there was an uncontrollable rout.

"Zhuge Repeater!! Zhuge Liang, your eighth-generation ancestor" Looking at the soldiers who had fled from the desert, Xiahou He couldn't help but scold. Liu Yan, as one of the only two Zhuge Liang descendants to participate in the war, was indispensable for the crossbowmen under his hands.

"General, the thief army's repeating crossbows are too fast and dense, and the brothers can't get close to the city at all, so it's not a way to attack it so strongly." Zhu Zan, who joined the army, said worriedly, his mouth has been oblique when he spoke, just because when he led the army to attack before, he was scratched by the crossbow of the Han army.

Cao Tai, the son of Cao Ren, who loves soldiers like a son, doesn't want his brothers to die in vain, if in peacetime, he can slowly besiege the small city in front of him, and wait until the Han army is exhausted.

But not now, Fufeng has been out of grain for three days, although he is confident that with the number of food hoarded by Fufeng, he can definitely hold out until the fall of martial arts, but the soldiers who stick there have learned that the grain road has been cut off, and if the grain road is not opened for a day, the morale will be lower and lower day by day.

After pondering for a long time, Cao Tai glared angrily at the crumbling city, gritted his teeth and said: "Lao Tzu doesn't believe in evil sons, this martial arts city must be captured." Someone came, pass on my general order, and ask Da Sima to transfer another 3,000 soldiers and horses from Chang'an, and transport another 50 thunderbolt carts by the way. ”

"!!" As Cao Zhen's fellow villager and friend, Zhu Zan obviously knew Cao Zhen's intentions, and if he really wanted to escape from the encirclement of Shu Han, this martial arts city was very important.

????????????????????????????

Three days later, Cao Tai waited not only for Cao Zhen's reinforcements and thirty thunderbolts, but also for the army with open jaws. It turned out that Zhang Jaw unexpectedly led the Wuhuan cavalry in the city to attack the siege of Li Yan's department, regardless of casualties, under the surprise attack regardless of casualties, the Shu army pushing all kinds of siege equipment suffered heavy casualties, and even Li Yan, the captain of the Shu Han Dynasty, was almost picked by Zhang Jaw's shot, if it wasn't for the timely rescue of Zhao Yun, who was arranged by Li Yan to escort the grain, I am afraid that Li Yan would have become the highest general killed on both sides of the Battle of Guanlong.

But even if Li Yan was unhindered, the Han army suffered extremely serious losses, and the most terrible thing was that all the siege equipment was destroyed, and the morale was low and the army was unstable. Originally, Li Yanbu was a mixed force composed of Dongzhou soldiers and Di people, and the so-called Dongzhou soldiers were Liu Zhang's father and son who collected 30,000 displaced people from Nanyang, Sanfu and other places to form a local strong army, which has always been the old capital of the Dongzhou Department (Guanlong and Nanyang), but this army is notoriously not strong in military discipline, not to mention the Di people.

was attacked by Zhang Jaw, it was impossible to attack the city again within half a month, and most of Zhao Yun's troops were assigned to attack Xianyang with Deng Zhi, and now there are only more than 1,000 people in his hands, otherwise they would not have been sent to escort the grain. However, Zhang Jaw was not without losses, 3,000 Wuhuan cavalry were all killed, and Zhang Jaw himself was also wounded by eight arrows.

On the next day, regardless of his injuries, he took the Huaili garrison to Wugong. Li Yan was not unaware of Wei Jun's departure, but he was still worried about Liu Yan's death, how could he stop Zhang Jaw's departure!

Only then did there be a scene of nearly 30,000 troops surrounding Wugong, hundreds of thunderbolts and stones covered the sky and blinded the eyes at the same time, and the arrows consumed in Wugong City for a few days had already bottomed out, so how could there be any resistance. Within a day, Wugong City was captured by the Wei army, Liu Yan committed suicide by drawing his sword on the spot, all the 5,000 soldiers of Zhuge Liang's line were killed in battle, and the most important thing was that Cao Tai captured ten Zhuge crossbows and a box of arrows. (To be continued......)