Di Qing was under the city of Zhejin Mansion, after the completion of 8 camps, almost every camp put more than 10,000 troops, these camps, may not be as invulnerable as the fortress, but also with the help of steel and giant trees, etc., very firm, unceremoniously said, guarding 10,000 troops, even if there are 30,000 to attack, it is not a problem.

Is there an army of 30,000 in Zhejin Prefecture, no, there are reinforcements in a short time, and there is none, this is an impregnable fortress, he just has to wait, the tunnel excavation is successful.

Digging tunnels, this is a more clever way to attack the city, the general defenders will defend, generally larger cities, there will be a special listening well, the role of this well, is to prevent the siege of the city.

Historically, there is Zhejin Mansion, which used to be an important town in the north, and even in the period of Dou Jiande, it also existed as the national capital, so of course such a city will have these things.

It's just that Zhejin Mansion has fallen into the hands of Liao, it has been more than a hundred years, and in a hundred years, the years have passed, and I don't know how many things have gradually disappeared, not to mention these listening wells, even if there are, Liao will be able to use them.

In fact, the method of dynamite siege, the listening well actually did not work, because the entire tunnel was only dug near the city wall, not inward.

In the past, the tunnel siege was to dig a road into the city and separate the city wall as a defensive fortification, in this case, the casualties could be minimized and the siege was successful.

Experienced defenders can avoid this by first listening through the tunnel, hearing that there is a tunnel dug in that direction, and then digging a deep trench in that direction, sending people to defend it, or pouring water and fire into it.

But this tunnel, at most, is under the city wall, that is to say, the part on the ground is outside, unless the Liao army jumps out and attacks outside, otherwise even if he hears it, he can only watch him dig.

This is also the Taiping Heavenly Kingdom period, such a siege method, the fundamental reason why it has repeatedly worked, unless it can be disintegrated outside, or before the tunnel is excavated, waiting for reinforcements, under the premise that the troops and reinforcements are insufficient, you can only watch the tunnel dig in place, and then blow up the city wall.

This is an insoluble method, unless, as in later generations, the foundation of the city wall is very deep, deep into the ground, ten meters underground, and it is a large structure at the bottom and small at the top, strong enough to exceed the explosion limit of black powder, so that it can resist such a method, otherwise, it cannot be defended at all.

Di Qing didn't know, this was incomprehensible, he was also worried that the other party was digging in his direction, and even pouring it after digging through, these were all troublesome, and even ruined the tunnel, so he was always on guard.

Fortunately, everything is very smooth, with the help of advanced tools, the speed of excavation is faster, the left and right is a tunnel or two miles long, and the structure of loess, dozens of people were dispatched, and the excavation was non-stop day and night, and the speed was progressing very quickly.

Finally, when the 4 tunnels were dug under the city wall, and the other party did not counter at all and excavate relatively, the moment of the decisive battle came.

Di Qing used all the explosives he carried this time, after coming to Youyun, a total of 160 stones, and began to prepare to divide them into four, and later, after thinking about it, he divided them into two.

For the siege, two irresistible gaps are already a huge problem, there is no need to make four, he already has an absolute advantage, and four gaps will disperse the troops.

At the same time, the walls of Oritsu are much taller than the previous ones, and in this case, more explosives are safer.

Now, of course, it is not a coffin, but a container made by Zhao Xin, which not only has more ignition points, but can ignite most of the explosives more evenly in an instant, so as to ensure that more energy is exploded at the same moment, and on the other hand, it is also safe enough.

160 stones, that is, about 8 tons, divided into two parts, that is, 4 tons, such a perfect black powder, enough to blow up a long section of the city wall.

Di Qing made all the preparations, and when all the explosives were put in and the fuse was laid, the final war came.

100,000 troops, out of the camp together, 10,000 people, let alone 100,000.

The other 6 directions, did not go out of the camp, but in the camp guard, once the Liao army out of the city, with the help of longbows and barracks is enough to resist, the real elite, 15,000 were drawn, these are all heavy infantry, or rather, part of the heavy infantry, and the other part, the heavy infantry converted from the heavy cavalry.

Under the premise that the eight camps surrounded the Oritsu Mansion could not be drained, the role that the cavalry could play was already quite weak, and it was unceremoniously said that as long as two or three horsemen were left for pursuit, the others could be put into the siege.

It's not the same as the previous battle of Zhuozhou, at that time, a simple longbow has solved all the problems, and then blast open the city gate and rush in, it's okay.

This is Zhejin Mansion, which is not only much larger than Zhuozhou, but also garrisoned by the most elite Liao army, even if it can blow up the city wall through explosives and give them a huge blow, it is almost impossible to achieve victory without relying on the hard work of these heavy infantry.

15,000 is already all that can be drawn out at present, almost one-to-one with the Liao army, plus the battle damage and morale, Di Qing is sure enough to take it, but I don't know how much he will lose.

The time had come, Di Qing listened to the horn of the camp, and then put on his armor and walked out of the camp.

The guards and the Chinese army lined up, waiting for him, Di Qing turned on his horse, and then followed a group of guards, and began to leave the camp.

And at this moment, outside, a pair of infantry and archers began to leave, and they had been resting for more than ten days, and everyone knew that victory or defeat was in one fell swoop.

For Di Qing, this time is his most glorious moment, Zhejin Mansion, Nanjing, Liaoguo, this huge city, will become his bag, no matter what the future holds, this city, will forever be engraved with his name, he came, he conquered.

On the city wall, tens of thousands of Liao troops are also in strict formation, it is easy to see below from a high place, and when the opposing soldiers are approaching the city, they will not be negligent at all, and any movement of the Song army will alarm them.

In fact, for the defenders, it is very incomprehensible, why the Song army has not attacked for so long, and there is not even a feint, do they believe so much that the Liao State has no support?

Of course, the support is not something that can be reached in ten days, and 20 days is considered fast, but the Song army thought that it would be able to capture Zhejin Mansion in ten days, although the Song army was huge, but the city walls of Zhejin Mansion were not vegetarian, and when the time came, it would depend on whose means were stronger.

set up an attack camp, and then the longbow lined up, and when attacking Zhuozhou, 30,000 longbowmen were used, but when facing Zhejin Mansion, it was more than doubled, and most importantly, there were 5,000 of the most elite Condor Hands.

If it is placed in other archer troops, the Condor Hands, it is definitely the most accurate archery, and it is the basis for a hundred steps to penetrate Yang, but in the longbow troops, the accuracy of shooting is only secondary, the key is to be able to use a more powerful longbow, and use heavy arrows such as armor-piercing.

Their task is to collectively attack some parts with cover or cover, and destroy the morale of the opponent with the strength of the armor-piercing bow.

Both sides are waiting, and the Liao army seems to be a little calmer, because in the past ten days, they have been fully prepared, not only have a large number of equipment for defending the city been added, for example, oil pots, gold water, rolling wood, etc., but also some other things, these things, can enhance the strength of the city, anyone who wants to attack the city, must go over these things.

Standing on the high platform, almost level with the other party's city wall, Di Qing's place is almost more than 500 steps away from the city wall, this distance, not to mention a bow and arrow, even if it is a crossbow, it is difficult to reach.

Perhaps, there are archers in the army who can row through this area, but the guards around him, coupled with Di Qing's belief in his skills, are enough for you to let him stand here.

Not to mention 500 steps, even if it is 1000 steps, 3000 steps, the telescope can see everything on the city wall clearly, now it is 500 steps, take the advantage of high-magnification telescope, more and more clearly.

The preparation of the other side can not be described as imperfect, but unfortunately, they thought wrongly, in history, the development of war was very slow, if it was replaced at any time, such an arrangement could be called perfect, but at present, new tactics are used, and these are outdated.

"Let's get started!" Di Qing gave the order gently, and the flag bearer behind him quickly waved the flag in his hand, the military music played, and the order to attack was issued in an instant.

The well-trained Northern Song Dynasty forbidden army, at the first moment of hearing the order, suddenly transformed from static to dynamic, one by one the longbow was erected, one by one the order was given, the heavy infantry began to approach forward, and the longbow was ready.

The heavy infantry advancing quickly approached about 100 paces, this distance is the range of the bow and arrow, and the purpose of the heavy infantry is to deceive the Liao army with bows and arrows.

This was unbearable, and the Liao army immediately returned fire, with more than 3,000 archers, and began to attack the heavy infantry.

The cavalry of the Liao State is excellent, but the archery skills are not very strong, but in the army, there is still a special team of archers, and their strength is very strong, more than 3,000 archers, shooting a lot of arrows.

It's a pity that what they encountered was wearing a full body of heavy armor, and it was also made of stainless steel, such heavy armor, not to mention a bow and arrow, even if it was a divine arm crossbow, it had a strong resistance effect.

The clanging sound, the heavy infantry who were shielding their heads and faces, and hiding in the steel all over their bodies, this wave of arrows did not cause much damage at all.

However, for the Liao army, their archers were exposed, compared to the heavily armored infantry, in order to pursue the lethality of the bow and arrow, the archers often rarely pierced armor, or even did not pierce armor, which would become the target of attack.

On several high platforms, at the first time of the archers' attack, there were special personnel, through the telescope, to determine the position of these archers, and someone turned the calculation to determine the angle of shooting.

In the more than ten days since he arrived here, Di Qing was not all resting, in addition to building a camp, it was to determine the direction of the area.

The attack range of the longbow is very simple, just the direction and strength, under the premise of standardizing the longbow and ensuring that the strength of each longbow is about the same, you can determine the amount of power used directly through the angle of opening the bow, and a skilled longbowman can easily do this.

Then, through the theater of operations and measurements, several directions are determined, which is easy to bring in, and in a very short time, complete the calculation and start the attack.

The Liao army defending the city was still the first to contact the longbow, which was the same as the Song army that came into contact with the Western Xia army in Western Xia, when the Poxi army was equipped with a large number of divine arm crossbows, or the kind that was carried immediately, the range of this kind of crossbow was not clear at that time, and many people in the Song army died under the god arm crossbow.

Now, this scene is playing out again in the Liao army, the terrible rate of fire of the longbow is undoubtedly shown here, there are at least 10 phalanxes, almost 20,000 longbowmen, attacking that area, the Liao archers who are placed on the back and are well protected, are immediately covered in the rain of arrows.

At the time of the longbow's first attack, the guard realized that it was not good, but unfortunately his order was not as fast as the longarrow flying at high speed, and when his order was still being quickly transmitted, the longarrow had already fallen.

20,000 people, in just a dozen breaths, shot 200,000 arrows, and the final result, such an elite archer of the Liao defenders was almost wiped out.

Before the battle started, 3,000 archers were lost, which made the guards unexpected, and they were also deeply afraid of the bows and arrows of the Song army, such a huge and terrible archer, why hadn't they encountered it before, was this a new class of troops in the Northern Song Dynasty?

Even so, the guard did not have the slightest fear, the loss of the archers, it was unexpected, he didn't realize that the archers of the other party could shoot so far, but the rest of the Liao army was all elite, and they were wearing heavy armor, as long as they were careful to dodge, there should be no problem.

Next, the longbow continued to extend, this is not 20,000 shots, but all, 70,000 troops, crazy archery, countless arrows formed rain in the air, and there was even a spectacle of arrows colliding with arrows in the air, but unfortunately in the face of heavy armor targets, and there were perfect dodge methods, there were not many real kills.

But mixed in with these archers, those Condor Men who smoked cold, their killing began to appear, and the heavy armor could not stop it at all, but in the huge rain of arrows, everything was cut off, and the guard did not realize that his men were not only separated, but also the casualties were increasing.

He didn't realize that underground, the Grim Reaper was already gradually coming, and the two generals carefully lit the fuse, and then ran backwards, the fuse was 100 steps in total, and they needed to go around several areas and walk 200 steps away to be safer.