Han Qi transferred Miaojiazhuang's longbow team, and based on this, a 2,000-person longbow team was established, and the entire training and integration used the power of Miaojiazhuang, and therefore, although Sun Ji was by Zhao Xin's side most of the time, he was recognized by Han Qi and had a position as a commander.

The military commander, this is a middle-level and high-level officer in the army, who has the right to command an army independently, and in terms of rank, it is a little lower than Sun Ji's previous imperial equipment, but I don't know how much more powerful it is.

If Sun Ji withdraws from the imperial equipment, he can also serve as the commander of an army, but I don't know if it is a box army or a border army, and the forbidden army is almost impossible.

Sun Ji didn't mean that he could serve in the forbidden army, and even if Han Qi could be transferred, it would be very difficult to bring imperial equipment.

In the entire Northern Song Dynasty, there were only 8 people with imperial weapons, and they paid for the security of the entire palace, and such a strong and trustworthy person would rarely leave.

Under normal circumstances, it is often after the age of forty that after the physical function has declined greatly and is unable to assume the responsibility of guarding the palace, he will be promoted a few levels and become an honorary official, and he will rarely be able to enter the regular military sequence.

Fortunately, Sun Ji didn't care about this, just temporarily commanded, with this identity, those who entered the barracks would no longer need to be reported as before before before they could enter the barracks.

12 coffins, each of which was closed, seemed to be very heavy, a heavy carriage, but it was carrying 3, because of the imminent siege, Han Qi was very attentive to everything in the barracks, and the news of Sun Ji's arrival was notified to Han Qi almost immediately.

Hearing that it was a coffin, Han Qi was still very strange, why did he come with these coffins, he didn't think that Sun Ji was provocative, and he despised him with a coffin, it didn't make sense, the general went into battle, the shrouded horse leather, and even the coffin was not necessary, so why be afraid of this.

Han Qi's first reaction was that the coffin contained the secret weapon this time.

In the past, Han Qi wouldn't care at all, it was impossible to capture a city with a few coffins.

But in Miaojiazhuang, even the longbow and the fortress have been developed, the former has changed the military system of the Great Song Dynasty, and the latter has changed the methods of defending the city and fighting in the Great Song Dynasty.

Hearing that Sun Ji was not placed in the barracks, but outside the barracks, Han Qi also took his own soldiers over to take a look.

Soon arrived near the coffin, and a strong smell of sulfur returned, which made Han Qi slightly surprised, is this gunpowder?

In the Northern Song Dynasty, gunpowder has gradually entered the military sequence of the Northern Song Dynasty, because gunpowder is not very pure, less powerful, and most of them use special methods or add special things.

There were also some in the forbidden army, but the power was too small, and some could only be used as signal flares, and instead of firing gunpowder, it was better for archers to shoot a few arrows with a little more power.

But there has never been such a large amount of it, and it has been put and used, so is this unique?

Han Qi naturally asked Sun Ji, Sun Ji also knew nothing about the contents of this coffin, because Zhao Xin did not explain to him like a longbow and a fortress.

This is also normal, because he was afraid that the Baozhou mutiny would affect the situation on the northwest border, so Zhao Xin did not explain much.

Placing gunpowder in the coffin for the capture of the city is the most stupid method, if there is a chance, give him time, whether it is a musket or artillery, it is a higher utilization rate than this, this is also a helpless choice, and I am not ready to promote it.

These gunpowders are not handmade, whether it is the Northern Song Dynasty or Miaojiazhuang, the chemical synthesis capacity is quite limited, and the gunpowder will definitely be impure if it is used in a handicraft workshop.

In order to ensure the effect of the explosion and the siege effect, all these gunpowders were synthesized through him and embodied in the card system.

The price also made him a little painful, 120 Wen per catty, 12 coffins, almost 12 tons, this is the price of two fortresses.

The cost of using two fortresses to siege the city is too great, and if you can't effectively find a reasonable synthesis method and reduce the price on a large scale, the use of this gunpowder will be a bit far away.

Such a siege method is okay by chance, but after a long time, it will definitely not work, or artillery and muskets are more economical, and they will not be used with more than ten tons at every turn.

Of course, the basic point is to tell Sun Ji that gunpowder is very dangerous and cannot be placed in the barracks, and after coming, it must be quickly sent into the tunnel, and sealed with a layer of soil, preferably cement and bricks.

If the tunnel is not blocked, its power, even if it acts on the top, it will be quite small, they must be completely sealed, and form a relatively firm resistance, the power is reflected out, if most of it can be concentrated on the upper floor, it can push them where they want to completely blow up the city wall.

The specific data, Zhao Xin doesn't know, he didn't learn blasting, and even in history, the siege of the Taiping Heavenly Kingdom was not a must-go in every city, otherwise the Taiping Heavenly Kingdom would have dominated the world a long time ago, and the field ability was there, plus the absolute siege ability, but as for just shrinking and arrogant Nanjing.

That night, with the help of the baggage troops, 12 coffins were sent to the bottom of the city wall, and then the wall was built, reinforced, with bricks and cement, it was not difficult to do something, it just took time.

There was still a little time before the siege, and for a whole night, three tunnels, each with an average of four coffins, were just below the city wall, only a meter away from the city wall, and most of the surrounding area was covered with soil layers, and the back was stacked with thick brick walls, forming a ring of protection similar to artillery, and the following was no exception.

If you look at this explosive arrangement as a huge cannon, it is the only flaw and catharsis.

After doing all this, Sun Ji also agreed with Han Qi to detonate these things before attacking the city.

Han Qi still attacked according to the regulations, but he had to wait for them to complete his actions and ignite the 20-meter-long lead, which would not take much time, and it might only take more than a hundred breaths.

Gunpowder can't be tried, but the fuse has been tried many times, Zhao Xin said, igniting gunpowder is very dangerous, about 4 tons in one place, high-purity black powder, what the explosion power is, he doesn't know.

There is no time to vacate the interval and hide in a safe place, which is tantamount to sending people to death.

A safe place, long been designed, the tunnel in the approach to the city wall, bent two ninety degrees of angle, after two adjustments, the tunnel is not straight, almost 40 meters away from the city wall, there is an anti-artillery hole, 40 meters thick soil layer, plus the special building solid and narrow structure, even an earthquake can be stopped, let alone these gunpowder.

After careful testing, after lighting the fuse, they will have 50 breaths of time, which is enough for an ordinary person to come to this anti-artillery hole half-walking and half-running, and all the fuses have been tested and will burn in 60 breaths to ignite this gunpowder.

In the fourth year of Qingli, the twentieth day of the first month, the sky is cold and cold, the north wind is blowing, in this era of northern China, even in the daytime, the temperature is very low, almost minus three or four degrees, early, the day is not dawn to bury the pot to cook, all preparations are made, the horn sounds, the forbidden army is dispatched.

The forbidden army began to move on a large scale, one by one in the forefront, tens of thousands of troops, almost 14,000 heavy infantry, giving the defenders a huge pressure.

Wei Gui also stood at the head of the city, to be exact, the north gate, which was the focus of the forbidden army's attack, almost 16,000 heavy infantry, of which at least 3 corps, were placed in this aspect.

Eyes do not deceive, although in the Art of War, there are a series of methods of disguise, but it is in the movement and field warfare, siege warfare, condescending, any disguise is invisible.

The besieging army was well prepared, making 120 masked chariots, 100 rushing chariots, and 45 well railings, 15 in each area, the height of the well railings was the same as the city wall, and the huge well railings could accommodate 50 archers, and almost all the longbowmen were arranged on the well railings.

It seems that the siege equipment is quite perfectly prepared, giving the defenders a huge pressure, but in the hands of the defenders, there are all kinds of tung oil and fire oil, so to speak, in the past half a month, with the help of Ouyang Xiu, the resources of the entire Baozhou have been utilized.

They even demolished hundreds of houses and got all kinds of bricks and stones for the defense of the city. Although a blue brick may not be able to threaten the hoplites, but throwing it from a height of several meters, the power is there, as long as the number is enough, the power will also increase, not to mention, the combination of dozens or hundreds of pieces, that power is even greater. ，

The battle between the two sides is about to break out, according to normal speaking, Han Qi should give an order to let the archers launch first, and then the heavy infantry will rush to the city wall with a ladder, which is a siege method that has been large-scale in the Northern Song Dynasty, and even trained to the bones.

At this time, for Wei Gui and Han Qi, if it is according to the ordinary method, they have nothing to move, they can only face each other head-on, and the preparations of both sides are very good, but the rebels still occupy the advantage of the city, which is enough to offset the advantage of the number of forbidden troops.

Han Qi didn't give an order, he was waiting, I don't know what kind of mentality he was in, he seemed to be full of expectations for Sun Ji, a Miaojiazhuang, blocking the attack of tens of thousands of troops, not letting them really wreak havoc in the north, the fortress and the longbowmen, but also changed the future Northern Song Dynasty army, so, he swore that the siege of the city, can it also produce miraculous results?