Early the next morning, Di Qing set off with a large army of 40,000 troops, escorted by heavy cavalry, and began to march rapidly, between Zhuozhou and Zhejin Mansion, it was only about 120 miles, according to the speed of 40 miles per hour, it may be able to arrive in three hours.

In fact, the speed of the whole march could not be so fast, although each person was guaranteed a horse, but it could not be rotated, and the horses would carry some supplies and weapons in addition to the people, and when marching at full speed, the speed of each hour at most should not exceed 25 miles, and there would be a break every 2 hours.

When I set out from Zhuozhou, it was early in the morning, and it was almost dawn, so I had completed almost half of the journey in the morning, but the closer I got to Zhejin Province, the more I found that the population had increased significantly.

The sixteen states of Youyun, in the current territory of Liao, are already relatively developed places, especially after Yuan Hao cleared the grassland, it is even more prominent, with a developed economy and a large population.

Although it is said that the Liao State and the Khitan have a nomadic tradition, they will not give up the benefits brought by farming, but the Khitan people and other tribes, they will not farm, nor will they learn, so the whole burden is on the Han people in the north.

Compared with nomadic herding, farming has a higher plot ratio, a unit area of land, and feeds a larger population, and these Han people in the north have increasingly become the pillars of the Liao State, which is also the key to the Liao State not giving up Youyun.

Close to Zhejin Mansion, which is the location of the Beijing-Tianjin Plain in later generations, the conditions of the land itself are very suitable, coupled with the foundation is very good, here has always been an important agricultural town, at the end of the Sui Dynasty, supported the Hebei powerful Dou Jiande, even if Li Tang occupied the whole world, and finally conquered Hebei, he also suffered a big loss, not only Li Shentong was captured, but even the famous Li Shiji surrendered because his father Li Gai was captured.

The Liao State for the surroundings of Zhejin Mansion, also from the beginning of obscurity, to the gradual attention of the back, now the surrounding of Zhejin Mansion, has become densely populated, if you don't look at the location, almost the same as the Northern Song Dynasty.

When sending troops, Di Qing also considered keeping the secret all the way, striving to be able to reach Zhejin Mansion under the premise of secrecy, and it would be best to attack the city gate while taking advantage of the chaos.

But more and more people, especially the dense villages, one after another, if the Song army kills all the way, maybe one or two will not delay much time, but on the premise of more, it will definitely delay time, and maybe, in the vicinity of Zhijin Mansion, a lot of time will be wasted.

After a short period of consideration, especially the current situation around the Zhijin Mansion, Di Qing decided to rush directly to the Zhijin Mansion.

Zhejin Mansion, which is the largest city of Liao in Youyun and one of the four capitals of Liao, although it has fallen into the hands of Liao for more than a hundred years, it has not been threatened much since the beginning of the Lanyuan Alliance.

However, during the Han and Tang dynasties, this was one of the most important cities in the Northland, whether it was the Eastern Han Dynasty's suppression of the nomads and Korea in the northeast, or the Sui and Tang dynasties, when they went out to Korea, it was an important base.

In many cases, a city, in the history of its establishment, has demonstrated its status, and this status is not only determined by geographical structure, but also by history.

Di Qing has never underestimated Zhejin Mansion, which is currently his biggest target, and it is also the target that the intelligence agencies investigated the most in the entire Northern Song Dynasty, and many situations are under control.

In terms of the scale of the city, the scale of the Ezutsu Prefecture is larger than that of the Daimyo Mansion, and the heritage is still there, but it lacks a series of repairs, and the most recent ones are repaired in turn, dating back to the Abysphical Alliance more than 40 years ago.

When Song Zhenzong sent troops at the beginning, the pressure on the Liao State was very great, and the emergency transfer at that time repaired the Zhejin Mansion, but later, the Northern Song Dynasty was quickly defeated, and the project was also completed.

The old foundation of Zhejin Mansion, if after a series of serious repairs, I am afraid that there is explosives, it may not be easy to take down, but now, the Liao State has neglected to repair, and the city walls in many places have been damaged, and some have even collapsed.

In the past, even if it was a target, the Northern Song Dynasty would not investigate these subtle things, but after improvement, the intelligence agency not only got a lot of money, but also obtained a series of information everywhere.

The news about the collapse of the Oritsu Mansion was through a chat with an old Han people, and I got the clues, and then through the visit, especially in person, the city defense of the Oritsu Mansion was not tight, and there was no problem when I walked under the city wall, and sure enough, I found the traces of the collapse from the middle.

The Liao State attached great importance to city defense far less in-depth than the Northern Song Dynasty, and the repair of the city wall was only covered on it, and there was not even such a thing as glutinous rice sauce, but only mud was used to smear it.

Such a city wall, for peacetime, is no problem, it still looks very powerful and majestic, but when war comes, not to mention explosives, even if it is a catapult, it can be easily killed.

Such hidden dangers are more than one on the city wall of Zhejin Mansion, and these are all recorded by Di Qing one by one, ready to be used when the city is sieged.

Compared with Zhuozhou, Zhejin Mansion is larger, and it is more complete in all aspects, and the dense population, which is the most densely populated place in the Liao Kingdom, was discovered by the Liao State when the Northern Song Dynasty arrived nearby.

These basic officials at the bottom were surprised why, the army of the Northern Song Dynasty would arrive at the periphery of Zhejin Mansion at this time, but out of duty, they still passed the news to the Zhijin Mansion for the first time.

If it is changed to a few decades later, the left-behind of Zhejin Mansion, that is, the king of the southern courtyard of the entire Liao State, this is a high-ranking official opposite to the king of the northern courtyard, but in this era, Zhejin Mansion is just a stay-at-home, although he is also a member of the Khitan royal family, but in terms of identity, he is not the king of the southern courtyard, and it is much lower.

As soon as he got the news of the attack of the Northern Song Dynasty, his first thought was that he had heard it wrong, what was in the Northern Song Dynasty, it was coerced by the Liao State, almost like a little flower cat, a country that wanted anything and everything, would actually go to war, and it would be an undeclared war.

But if one person is a liar, two people are, one after another news, and they are getting closer and closer to the Oritsu Mansion, then it is not a lie.

This left-behind guard can be regarded as a quick decision, and immediately sent nearly 100 messengers and horses to report to Zhongjing in Liao, the relatively backward communication conditions in ancient times, he was in Nanjing, basically could not grasp what happened in Zhongjing, let alone know that Liao Xingzong had already taken the imperial conquest.

According to this, even if these messengers can pass through Shanhaiguan smoothly and go to Zhongjing, they will not see Liao Xingzong, not to mention, there is still such a big checkpoint as Shanhaiguan, more than 100 messengers, how many can pass.

After sending messengers, Zhejin Mansion also began to seal the city, and at this moment, the Song army was at least more than 50 miles away.

It's not that the Song army is not fast enough, in fact, starting from Zhuozhou, there was no delay along the way, even at the beginning, when the information was guaranteed not to be leaked, it was delayed a little time, but in the follow-up, it was quickly made up.

Mounted infantry, no matter how it is, are mounted infantry, they are not comparable to fast horses, one side has to ensure that there is enough physical strength to deal with the war, and on the other hand, for the sake of emergency information, they can even ignore whether the horse can survive or not.

In this case, when the latest wave arrived in Zhejin Mansion, the Song army was still at least 50 miles away, and there was no way to hide it.

Eight city gates, all closed, compared with Zhuozhou, the city wall of Zhejin Mansion is taller, and there are more defenders, equipment and various equipment to defend the city, this is also the confidence of the defenders, there is such a strong city, even if the Northern Song Dynasty attacks nearby, it can be collected.

More than 20 miles away from the city, Di Qing was on a slightly higher earthen bag, and took a look at the situation in Zhejin Mansion, the telescope was a good thing, and it could be seen clearly from a distance.

In the past, in order to investigate what was going on in Oritsu Prefecture, it was necessary to get closer, and there might be an ambush or an attack.

But now, as long as you are 20 miles away, or even 30 miles away, you can clearly see everything in Oritsu Prefecture, and such a sharp weapon has a huge effect on the war.

The gate of Zhejin Mansion is closed, and the city head is already heavily guarded, although it has not been seen clearly, but one thing is certain, the other party has already gotten the news.

"Stop now, set up camp!" After Di Qing gave the order, it was quickly transmitted to the commanders of each unit through the heralds, and then the 40,000 troops were quickly encamped.

If it is said that the Zhejin Mansion is not prepared, Di Qing may send someone to test it and attack, and now that the Zhejin Mansion is on guard, of course it can't be so reckless.

The combination of longbow and explosives can theoretically break through any city, but if you rely on it in turn, you can attack indiscriminately, and it will also be chaotic.

The previous attack on Zhuozhou, which was to kill chickens with a knife, a total of 500 soldiers, also guarded a broken city, 50,000 people were also crushed to death, directly blocked the Quartet, surrounded by groups, and then attacked.

But the Oritsu Mansion is different, his entire circumference is not much better than the Daimyo's Mansion, such a huge city, 40,000 troops can't completely besiege it.

Besides, the siege in the city is nothing else, it is the Liao army, even if Nanjing is among the four capitals of the Liao State, it is not very important, he is also one of the capitals, and the defenders here, even if they are not as strong as the Tielin Army, are definitely first-class.

15,000 elite cavalry of the Liao State, what kind of concept is this, as long as Di Qing wants to disperse and surround it, even if 10,000 people are left at one city gate, it will not be able to block the impact of such an army.

Di Qing's plan was very simple, first, camp on one of the sides, divide it into two parts at most, start building a large camp, and when the camp was firmly established, then station a small number of defenders to occupy the other large camps.

This kind of practice, that is, the practice of Zeng Guofan in later generations, is to harden the village and fight in a stupid battle.

Regardless of the final result, if the camp is firmly built, it will be invincible in the first place.

This method is actually the method mastered by most Wenchen, whether it is the Song Dynasty or the Ming Dynasty, when guarding against border troubles, a large number of cities will be built to guard against the ubiquitous nomadic cavalry.

This method is not bad, through the barracks, the advantages of the farming nation are brought into play, the field war is avoided, the city is consumed, divided, and the nomads are allowed to fight according to the methods of the farming nation, which is tantamount to the strong and weak, in this case, it is easy to achieve victory.

The reason why it can't be sustained and has suffered one failure after another is not because this policy is bad, but because this policy is too expensive.

The rule of officials, from ancient times to the present, has not been so clear, some small expenses, perhaps under the strict rule of officials, no one will be too greedy, but large funds, especially this kind, related to life and death, not many people dare to ask, then it is strange not to be greedy.

The cost of the city is too large, the efficiency is not high, plus the money in the ten, maybe one or two of the funds are used, plus the construction of the city is really costly, that is, the Northern Song Dynasty has held on, but because of the huge cost and financial constraints, once you meet some faint monarchs, there will be a problem directly, the Ming Dynasty is simply, because of this there is a big problem, even the emperor has no money.

However, Di Qing is not one of those civil officials in power, he is a man who is both civil and military, and it is the best choice to use this trick in Zhejin Mansion.

First of all, to avoid being attacked by the Liao army, even if it is the current state, 40,000 troops, if they are grouped together, the Liao army does not dare to come at all, divided into two parts, maybe the Liao army dares, but it is very likely that the Liao army does not dare to take risks casually, after all, to deal with 20,000 people, at least 10,000 people, 10,000 people are not safe, and more than 10,000 people, only one part of the attack is attacked, and the other part still exists, once there is a problem, the entire Zhejin Mansion will be finished.

As for this, the Liao army ran away, this point does not exist, the Liao State has the upper hand in the Northern Song Dynasty in terms of mentality, and now the Northern Song Dynasty has hit Zhejin Mansion, and it still has an army of 15,000, how can it be possible to flee without a fight, it is impossible to put it on the Northern Song Dynasty, and it is not a border town, this is the Nanjing of the Liao State, once lost, the entire dark cloud will shake.

In this way, Di Qing stopped under the Zhejin Mansion and began to set up camp, the same, began to dig tunnels, such a huge city as Zhejin Mansion, even if it is lost and repaired, but the rash siege, the loss is also huge, with the support of intelligence, as well as the layout of the Liaodong Peninsula and Shanhaiguan, he has enough time, as long as the tunnel is dug through, then the Zhejin Mansion is like a ripe fruit, let him pick it, and then the Liao army that has lost its morale will definitely greatly reduce its combat effectiveness. At that time, it was time to attack.

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