"How many times have I said it! When you release a crossbow arrow, you can't expose the front of the battlement, but you can't squat and hide either! Shoot along the side of the diagonal yo, lean back the moment you release the arrow, and squat down with your back against the battlement immediately after shooting! You don't need to save crossbow arrows, you can withdraw if you hold on for another five days! ”

"Ironclad soldiers don't need to throw wooden stones, just be in charge of commanding. The auxiliaries without armor just follow the direction of the command and throw it, don't get up, raise your hand against the wall and push it down! Who let you push from the battlement, from the gap to push stupid is not stupid! ”

Scattered on the wall, the bloody offensive and defensive battles of the day are repeated like a reproduction of the scene, the difference is only that the casualties on both sides are increasing, and the quality of the defenders is also rapidly improving.

Carrying a ring-headed sword and a large round shield, and wearing iron armor, officers of the cantonment commander and above, patrolling the city with their waists bent, do not know how to correct these recruits who have killed for less than ten days every day, so that they can use crossfire to get closer, and make full use of simple geometric calculations and experience to maximize the masking effect of the bunker.

Those who can't learn often die faster, so those who survive are stimulated by blood and life, and the learning speed is often relatively fast, which can almost be regarded as the fastest efficiency in learning things in a lifetime.

Lu Su's instructions were very clear: the arrows did not need to be saved, and all the arrows were shot, because if they could not finish shooting, they would have to be transported back to Hechi County at least by manpower. The military rations were also eaten openly, so that the soldiers could be fed. Those recruits from the Tuntian soldiers have lived for so long, and they haven't been able to eat enough every day like now, and their morale is quite usable.

……

Lu Su calmly guarded the Dasan Pass, and on the fifth day, Fa Zheng also got Liu Bei's order and rushed to the front line to support.

But there are not too many generals to guard the wall, and as soon as Lu Su and him put together, they will divide the law to supervise and organize the retreat of the people, and hide and transfer military supplies.

Of course, this work is not implemented only after Fa Zheng came, Lu Su has been implementing it for several days, but there is no capable and capable official at hand to command and coordinate, and Fa Zheng just took over the work.

Fa Zheng is a native of Yixian County, belonging to the Youfufeng Wang clan, and most of the Tuntian guests absorbed by Sanguan County and even Hechi County in recent years are displaced people who have flowed south into the Qinling Mountains from the Youfufeng area in Guanzhong, so they are also half a fellow villager with Fa Zheng, and Fa Zheng has more affinity and prestige for these people, so it is easier to persuade the people to trust.

It's just that Fa Zheng followed Liu Bei's camp late after all, and he didn't experience the battle in Youzhou at the beginning, and he didn't know how to roll and store the wheat harvested in advance, so he had to explain and teach Lu Su a little bit first. After grasping the Fazheng, he immediately began to organize the local people to intensify its implementation.

It has to be said that the arrival of Fazheng has a really good effect, because for farmers, it is very reluctant to harvest crops before they are fully ripe. Half a month early harvest, you may lose a third of the yield, and not counting the loss of shelf life.

However, before Fa Zheng came, he also got the permission of Liu Bei and Li Su, and there was a policy to compensate the people, so Fa Zheng once again ordered the people near Sanguan County to go directly to the grassroots level, and he asked groups of small officials to shout in each village:

"Fellow villagers, what the king promised in person, as well as the state and county official documents here, but whoever grabs the wheat for milling and retreats with the army, the imperial court will exempt this year's tax, and the spring famine of the next year will also give three months of rations and seeds for crossing the famine, so that the king is benevolent and righteous, and the opportunity is rare, if anyone does not listen, he will be dealt with as a thief!"

After a few days of frantic harvesting, all the wheat in the small and narrow terraced fields around the monk's original area and in the valley to the south was finally cut. If Sanguan County is done here, go to Hechi County and continue to repeat this operation.

Don't look at Lu Su and Li Su's plan, Hechi County will not give up, at most it will only allow the rebels to pass by the West Hanshui River east of Hechi County at that time, but will definitely not allow the rebels to enter the county from the west bank.

However, because a lot of farmland is outside the county seat, especially the half of the land in Hechi County on the east bank of the Western Han River, which is the most fertile area nearby, if it is not harvested, the military rations will be all owned by the enemy.

After Fa Zheng arrived, it took another five or six days to disperse the people, transfer supplies, and harvest all the crops, and finally triumphantly reported to Lu Su, telling him that he could retreat.

Because there are not enough stone mills, the wheat cannot be rolled all for the time being, so the green wheat is stored in Hechi County, so that the mills in the county town boil oil and light the lamp every day to start work day and night.

……

On August 12, the rebels had been attacking Dasanguan for more than 10 days, and the cumulative casualties had increased by several thousand, and Lu Su's troops had already drawn two new recruits from the people of Tuntian as support because of the excessive losses of the soldiers defending the city.

Fortunately, he finally waited for the good news of Fazheng, and in the evening of the same day, he let the soldiers bluff and repel the last wave of the enemy's attack of the day with the heaviest firepower. Then close the wall and other things without moving, and directly retreat quietly.

When they retreated, they were divided into two groups, and all the infantry were allowed to withdraw first, while those with horses were delayed for an hour. In the end, Lu Su also ordered them to replace all the torches at the head of the city with a new batch, and they also tied fuel in advance. Prevent the torches from going out too quickly in the middle of the night and being discovered by the enemy forces in the siege camp.

In order to prevent the closing from being completely silent, Lu Su arranged a trick similar to the hanging sheep drumming to create a night patrol noise, but instead of using a drum.

In addition, not to mention that Fazheng is also doing things very carefully, he has been preparing for the past few days, and has also set up three simple wooden fences every 30 miles on the 120-mile mountain road from Sanguan County to Hechi County.

They all found hundreds of tree cutters, and simply cut down the trees and inserted them in the narrow part of the canyon to form simple fortifications. In this way, even if the Xiliang soldiers found the empty city and immediately caught up, they could use these walled walls to delay the enemy army. Lu Su's people could also rest and recuperate slightly alternately every thirty miles back.

The exquisite preparation of this hand is really outstanding, and there is an old fox like Jia Xu on the other side, who still hasn't been able to see through Lu Su running away in the first half of the night, and even those soldiers who are riding horses before leaving, they will also release arrows to the city when they hear the wind and grass, and it looks so normal that it can't be normal.

……

It wasn't until late at night that Jia Xu finally noticed that something was wrong when he got up at night—there were too many fewer torches in the city, and many of them were extinguished.

After all, Lu Su can't wrap too much fuel, if the torch is too big, the initial fire will be obviously more fierce than usual, and it is easy to see the problem at a glance under the city, so it can only find a balance between "battery life" and "realistic appearance".

The alert Jia Xu pondered for a moment, and immediately ran to Zhang Xiu's tent to wake Zhang Xiu up.

"What's wrong with Captain Jia?" Zhang Xiu rubbed her sleepy eyes and was a little confused.

Jia Xu: "Let your night watchmen make another tentative sneak attack, I see that there are too few torches in the city, and the speed of extinguishing is not normal, Lu Su should not have run away." ”

Zhang Xiu: "This ...... If the enemy lures the enemy, it will only increase casualties. ”

Jia Xu: "You will believe me again and send hundreds of people to touch it once." ”

Zhang Xiu woke up, or organized the soldiers to try it, in order to boost morale, the soldiers who were selected to sneak attack were also arranged to eat a few pieces of boiled meat of unknown origin and drink a few bowls of wine before going into battle.

A Qu Junhou led the team to quietly touch up the ladder with fear, and sure enough, he did not encounter any resistance. It's just that when I climbed over the wall in the dark, I seemed to accidentally tripped over some mechanisms, and several torches inserted in the city were triggered by the mechanisms and fell, igniting the half-dried straw that the big lump put on the city wall with a "bang".

The soldiers were in a panic, and some of them thought they had been ambushed, so they actually jumped off the wall two or three feet high, and made a mess.

Jia Xu watched very carefully under the city, and at first thought it was an ambush, but because he didn't hear the shouts of killing and rolling wood and stones, he immediately shouted loudly to order Zhang Xiu to stabilize his morale: "Let the soldiers not panic!" It may just be a trap without an ambush! The fire is not big enough to be extinguished! ”

It's a pity that when Jia Xu's order reached the city wall, it had been chaotic for several minutes, and the fire had already spread relatively large. Although they knew that there were no enemy troops, the soldiers did not want to risk their lives to put out some straw, so they preferred to wait until the grass was almost burned.

The trap fire burned for half an hour, and the flammable materials on the wall were almost burned, and the Xiliang soldiers entered the city again, carefully extinguishing the embers in the corners. After ensuring that everything was safe, the city gate was opened, and Jia Xu followed Zhang Xiu to the city.

Jia Xu cautiously checked the ashes and unburned things, and muttered: "This should be all wheat straw, and there are some of them that are not dry enough and are green, so they are not burned."

It seems that as I expected, Lu Su insisted here for more than ten days, just to clear the wilderness, he may have been defeated with our army, and destroyed the nearby wheat fields, and would rather not receive grain himself than leave us. ”

Jia Xu is very clear that the purpose of delaying time is nothing more than two, one is that it takes time to clear the wilderness, and the other is that it takes time to wait for reinforcements. Judging now, since there is a foreshadowing of the previous possibility, the probability of the option of "Han army reinforcements are imminent" will be lowered.

Of course, it cannot be completely ruled out. It is also possible that Lu Su is both strong and clear, and waiting for reinforcements.

Zhang Xiu was still too young and didn't know how to strategize, so she had to ask directly: "Then what should we do now?" Immediately pursue it? ”

Jia Xu put down the half-burned green wheat stalk and patted the ash on his hand: "Chase, definitely chase." If Lu Su didn't destroy the fields, then his retreat would be like reinforcements arriving to lure the enemy, but I didn't dare to chase after him.

Now, there should be no danger in catching up for another ten or eight days. But you go first, just leave some men and horses to escort me with the rear army food team, and I will carefully check the defense area abandoned by Lu Su.

Lu Su, Lu Su, but that's it. His use of soldiers to govern the army is indeed rigorous and measured, but it is a pity that there is no surprise. If I use troops, even if the wall has been cleared and the army has to be withdrawn one after another, I will leave hundreds of dead soldiers to continue to hold the wall, and I can pretend to be unprepared at night many times, lure the enemy to attack, and then suddenly the wall will be full of bows and crossbows to greatly kill and injure the enemy soldiers.

This Lu Su cherishes the lives of his soldiers too much, and refuses to leave his abandoned son to be small and big, otherwise he can at least delay us for one more day. As the so-called mercy is not in charge of the army, the generals dare not use unscrupulous means, what great things can be achieved! It seems that among Liu Beijun's strategists, only Li Su and Fa Zheng are unscrupulous enough to dare to break their wrists.

At the beginning of the battle of Wuzhangyuan to pursue Liu Bei, in order to rescue Liu Bei himself, almost all of their thousands of troops gave up, Fa Zheng was so courageous, no wonder I mistook him for Li Su at that time. ”

While commenting, Jia Xu is also adjusting his summary and cognition of the enemy's strategists, and adjusting the differentiated response strategy when he encounters Liu Beijun's strategists in the future.

Then Jia Xu woke up Fan Chou and told Fan Chou the news of "Zhang Xiu's sneak attack on Sanguan overnight" to conquer Sanguan, without saying much about other considerations.

Fan Chou is brave and brainless, and he doesn't respect Jia Xu, and some things are bad if he talks to him too much. After he heard the good news and not the bad news, he immediately roared and followed Zhang Xiu to chase and kill with his troops.