Sun Ji's inquiry, Zhao Xin was also considering, and said unceremoniously that a simple Jin country was not enough for the Northern Song Dynasty to perish, as the best country to defend the city, the Song Dynasty's ability to defend the city was very strong, this point, seeing that Mongolia was invincible all over the world, and when it met the Southern Song Dynasty, it was defeated in Changsha, and even a khan died in the Southern Song Dynasty.

The key issue is actually in the money, after the alliance of the Yuanyuan, the Northern Song Dynasty and the Liao State entered a calm, even if they stationed troops in the north, but the overall situation is good.

However, the appearance of the Western Xia, like a maggot on the tarsal bone, gradually caused the Northern Song Dynasty to continue to lose blood, and the three major battles of the founding of the Western Xia were easy to handle, but after that, the constant harassment and harassment made the Northwest issue a key issue, and continued to make the Northern Song Dynasty lose blood.

The Northern Song Dynasty didn't think about solving this problem, whether it was Di Qing or Wang Shao, they all worked hard to do their duty, Di Qing suppressed the Western Xia for many years, and Wang Shao almost destroyed the Western Xia.

It's a pity that the Western Xia still had a certain amount of national fortune, and they successfully dragged the Northern Song Dynasty, even in the most miserable time, they did not perish, and even until the Liao State was destroyed, replaced by the Jin State, and until it was destroyed by the Mongols.

For hundreds of years, Xixia has always been a stubborn disease in the Northern Song Dynasty, and if the Xixia problem is not solved, it is equivalent to saying that a pot is rotten and a big hole is rotten, even if Zhao Xin's open source ability is very strong, and a steady stream of living water is poured into this pot, it will definitely not accumulate water.

The combination of the longbow team and the fortress, or Zhao Xin's special modification, carried out a series of arrangements for the interior of the fortress, in the era when thermal weapons and artillery did not appear, there is absolutely no solution, not to mention, the appearance of tree cannons.

If it is said that the Northern Song Dynasty opened the era of thermal weapons under the current premise and used a large amount of copper as a raw material for casting artillery, it is not impossible, and the smelting level and gunpowder technology of this era are enough to support this.

But copper is too heavy, and even if it is reduced as much as possible, it is much heavier than iron, and the cost is too high.

That's right, an artillery, as little as 3,000 catties, as much as five or six thousand catties, such copper, converted into copper coins, may be as high as 1,500 guan, or even 2,000 guan, the Northern Song Dynasty, which is already short of blood and full of holes, can't support the cost of copper cannons, a fortress, at least 10 copper cannons, that may be 20,000 or even more.

The reason why Sun Ji values this fortress is because the fortress provides sufficient defense under the premise of low cost, as long as a large number of fortresses are lined up in the northwest region, the defense strength of the northwest will be greatly strengthened.

Zhao Xin's answer made Sun Ji overjoyed, but then, Sun Ji was a little embarrassed, and he stopped talking.

As soon as Zhao Xin saw Sun Ji's expression, he knew what Sun Ji was worried about, patted him on the shoulder, and said, "Don't worry, I will give these to my father, don't worry!" ”

"Really?" Sun Ji was a little incredulous, but Zhao Xin didn't say anything more to him, the fortress was related to the safety of the entire Northern Song Dynasty, just like the problem he considered before, in order for the Northern Song Dynasty to be stable and maintain a little more vitality, he even wanted to do more shocking things, let alone a fortress.

But before that, he needs to sort out some things, this fortress is after he manifested, only to renovate, because there is no specific construction process, but also need to continue to sort it out, fortunately, on the premise of having a physical object, it is not difficult to modify the drawings, in the current fortress, there are also some professional house builders, they can give him some tips.

The newly formed drawings will be accurate to the smallest detail, for example, how many materials are used, the main body of the bastion is brick and cement, and some places, such as the outside, are prone to water accumulation, or where they are hit by rain, some steel bars will be used as the skeleton.

Fortunately, the overall consumption is not high, according to Sun Ji's proposal, a small fortress that is five or six times smaller than this fortress may use 2,000 catties, that is, a ton just now, although the number is large, but it is not unacceptable, and the cost of steel bars is about 400 guan.

Next, there is sand, bricks and cement, as well as moso bamboo, which is mainly on the inside and is used for support, as long as there is no water and moisture, the service life of moso bamboo is not a lot at all.

These are also accurate, even a little less than the steel bar, the total cost is about 300 runs, the two add up, the material cost is 700 runs, and it is probably necessary to use more than 300 bricklayers to build in 1-2 months, so that the labor cost is about 400 runs.

In other words, as long as it is controlled, the overall cost is only 1100 guan, which is far less than Sun Ji thought.

There are also some that Zhao Xin did not tell Sun Ji that the use of good tools can greatly reduce manpower, steel, cement, bricks here, if they are dug deep and developed, they can also reduce costs, and in the case of large-scale construction, under his suggestion, they may be able to reduce by a third, or even half.

Even if it is only one-third, for the Northern Song Dynasty, it is also rare good news, this fortress, after reducing the area of eighty or ninety, the personnel will be reduced to the extent of 200 permanent people, 300 people in reserve, 500 elite border troops, can play a considerable effect, even if it is a superior force, it can not be very effectively put into it, without several times, or even more than ten times the casualties, they don't want to capture it at all.

Things were sorted out, mainly the drawings of the fortress, the production points of cement, etc., as well as some designs of bricks and reinforced concrete, when these all the itinerary texts, Miaojiazhuang also ushered in a calm period.

At the beginning of Wei Gui, he divided his troops to attack around Miaojiazhuang, and what he saved was to stimulate the defenders of Miaojiazhuang, they were all group training, and they watched their hometown being burned and looted, maybe they would venture out.

The previous attacks failed somewhat unclearly, but Wei Gui made one thing clear, that is, there were really few people on the other side.

800 may not be the final number, but the final number will not exceed 1000.

1000 regiments, even if part of the regular army is mixed in, this is a very small force, they are relying on the defense of the fortress, which gives them great damage, once they leave the defense of the fortress, the victory must be theirs.

It's a pity that the other party is not fooled, even if they are fighting in full swing around it, it is still the case, in the end, the rebels cleaned up the surroundings, and after that, they finally left, since Miaojiazhuang could not be attacked, they went elsewhere.

Whether it is Zhao Xin's card system, or Sun Ji and others, who venture out to investigate, it has been proved that there are no rebels around, but no one dares to go out yet.

The fortress gave them enough defenses to run out of the fortress, and the rebels were far from being wiped out.

At this moment, the first wave of counterinsurgency troops has approached Baozhou, and 10 forbidden troops rushed from around, under the order of Han Qi, they accelerated their march, and the first to bear the brunt of the Red City Walled City and Liujia Vortex Village, these two walled cities that were broken by the rebels and even occupied, must be taken back.

It's a pity that the rebels have long been far away, and a part of the forbidden army is stationed here, and then the rest began to sort out, occupying strategic points outside Baozhou one by one, blocking the way for the rebels in Baozhou to leave.

No matter what happens next, no matter how many rebels have power, imprisoning the rebels in Baozhou is the best choice.

Wei Gui, who controlled the situation of the rebels, already knew when he arrived at the Red City Walled City that the forbidden army of an army was only 2,500 people, but the surrounding forbidden army was too close.

When one road after another was blocked, Wei Gui understood that he was finished, even if he was crisscrossing Baozhou for dozens of days, and even released the combat effectiveness of the rebels, but in the end, he did not achieve his goal, he became a victim, and he couldn't even control his own fate.

The only thing he hopes for is that the Wang family can abide by the agreement, but everything is under the control of the Wang family, and he doesn't even have the right to resist, if the Wang family really doesn't follow the agreement, the Wei family will be finished.

But at this moment, he hasn't even completed the task, how can he ask for it, what he can do is to do the last shift according to the requirements of the Wang family, that is, to let the crazy rebels play a role, and in the end, let some clues be buried in the war.

After almost 2 days of waiting, in one night, Wei Gui seized the opportunity, and the rebels poured out to attack the Yunlong Army with all their might, which was only one word short of the Yunyi Army, and it was not very far away, one was in Baozhou and the other was in Xiongzhou, both of which were an army of the Forbidden Army.

It stands to reason that the two armies should be about the same, but there is a significant difference, Wei Gui concentrated almost 8,000 people, 4,000 sets of infantry armor, at night, quickly operated in front of the Yunlong army, and then, taking advantage of the night, launched a surprise attack, more than 4,000 armored infantry, brazenly faced the fortifications, and carried out a general attack.

I didn't expect that the rebels who were surrounded would dare to attack, and when they were caught off guard, the lost first hand was attacked by 4,000 rebels, and the strong camp only lasted for one and a half hours before it was breached, and then it was one-sided.

Itself, with the help of the barracks, it was also the Yunlong army that could barely resist, after the barracks were broken, there was no way to resist, both the number of people and the rebels who were superior in equipment began to kill frantically, the Yunlong army was defeated, with more than 1,000 casualties, and the rest fled, a huge gap, was opened.

10 armies guarded the periphery of Baozhou, waiting for the arrival of the cold air, surrounded by the rebels, but did not expect that the rebels under the heavy encirclement, actually dared to counterattack, all of a sudden, a Yunlong army was completely defeated, the direction they guarded, became a gap for the rebels to escape, the situation in Baozhou, suddenly complicated.