Chenjiabao, the fortress in the north of the base, is the barrier in the north of the base.

The current Chenjiabao Fortress, after the last anti-encirclement and suppression almost fell and was destroyed, Lu Shi also saw the disadvantages of this fortress, that is, the real defense core of the fortress is in the south and no longer in the north, although the north relies on the mountains, and the mountains are indeed steep, but the mountains as steep as Mount Everest are still being conquered by human beings, not to mention the small cliff now?

Counting this Zhouji sneak attack, plus his own surprise attack, this fortress has fallen twice, although both times it was because of people, but it does not mean that it will not fall again for other reasons in the future.

So, between March and May, Lu Shi began to renovate the fortress at any cost.

Fortunately, now the base area has a bumper harvest of potatoes, especially the trade surplus, so that the base area government has a large amount of silver money as IOU reserves to increase the issuance, so that the base area government also has a huge potential in terms of financial resources, at the same time, because these four counties have become the myth of northern Shaanxi, the paradise of the people, a large number of displaced people flocked to the city, so that the construction of the fortress is not short of manpower, but because the fortress construction has placed a large number of displaced people in the young and strong, the implementation of the method of work for relief, more stable base area, so repeatedly. Jiro even took out the advanced technology of pulleys, and the fortress was built quickly.

First of all, the direction of the problem, the new fortress to become a base to block the danger of the north barrier, facing the north, the second is the site, Chenjiabao is built according to the mountain, in fact, can only garrison troops can not block the enemy from the north, so, Lu Shi with a group of generals, after five days of trekking through mountains and rivers after five days of field investigation, in this two mountains and one ravine, the real southward must pass through the place to establish a real fortress, the site, dead stuck on the road to the south, so that this new fortress becomes a real Xiongguan.

Sufficient money and food, sufficient manpower, and the real explosives of the base area, especially, under the inspiration of Lu Shi, Erlang "invented" the ancient crane - pulley block, which made the construction of the fortress more effective with half the effort, if it were not for Lu Shi's time constraints, and he had not really researched the lime formula, this fortress would be even more indestructible.

Nearly 10,000 migrant workers, coupled with advanced machinery and equipment, the fortress began to take shape in less than three months, and now the only thing is that some of the facilities in the fortress are not perfect, but in this critical situation, everything is mainly defense, and other facilities can only be built slowly later.

This fortress has four gates, no longer only one as Chenjiabao, although one is convenient to defend, but as long as the enemy blocks your gate with several times the strength, you will not have any room for maneuver at all, so it is to defend to the death, there is no chance to attack, in this world, blindly defending, there is no fortress that has not been breached, whether it is standing for decades, known as the Diaoyutai where God folds the whip, or the twin cities of Xiangyang.

Second, the entire fortress was stuck between the two mountains, and it was at a certain distance from the two high mountains, and the city gate was relatively open, so as to avoid the enemy taking advantage of the condescending situation of the two mountains to suppress the fortress with firepower, even if it wanted to suppress, it would have to be after the invention of real long-range artillery such as cannons. The space between the fortress and the two mountains is narrow, and the enemy wants to encircle it on all sides, so it is impossible to put a large number of troops on these two sides, and it can also give the enemy position two weak places, creating opportunities for the defenders to defend and counterattack.

The back door is not far from the Chenjiabao fortress, so that the two fortresses become the most difficult to fight in the world's twin city pattern, once the enemy wants to be surrounded on all sides, then the enemy on the south side of the new fortress has become a place to suffer from the enemy, they do not dare in any case, regardless of the threat of Chenjiabao and concentrate on attacking the city, therefore, this fortress has become, no matter how many troops you have, you can only face an embarrassing situation in one direction - the north.

At the same time, the entire material of the fortress is a boulder blown out of the mountain, although the time is tight, can not polish the light, but in front of such a boulder city wall, crossbow arrows, tiger guns will be powerless, not to mention what elm spray, digging the city explosives method is even more unworkable, you want to lay it, the only way is to fill it with human lives, but the problem is, as long as the defenders have a fellow way to connect with the outside world, then how many lives you have, it is all in vain.

This design can be said to have cost Lu Shi countless minds, all these considerations, almost made Lu Shi think about his thin historical allusions and knowledge, before he came up with this monster, and Erlang started to build the fortress, he was completely immersed in this great, temporary new project and could not extricate himself, when the fortress was completed, Erlang also became the absolute construction expert of the entire base area.

And when the fortress was built, there was a disagreement about the question of the defenders, at that time at the military meeting.

Lu Shi resolutely appointed Guangwu, a fierce general, to serve as a garrison, while Guo Tianxing resolutely objected. Chen Ce and Geng Kui expressed neutrality.

Due to the negligence of Guangwu last time, he was almost succeeded by Zhou Ji's sneak attack and went deep into the base area, fortunately, Guangwu discerned the overall situation, with a group of garrison teams, gave up his own strengths and used his own shortcomings, fighting huge casualties, with the support of the militia people, guarding the city gate, completely entangled Zhou Ji, so that Zhou Ji did not dare to divide his troops into the base area to break into the army to a black tiger heart, afraid that Guangwu would cut off his own back road, after insisting on fighting hard for three days, Geng Kui took a large army to reinforce, at the same time, the news of the defeat of Li Yuanhao and Zhang Yuan's main force also reached Zhou Ji's ears, This allowed Zhou Ji to return with a cut of feathers, ensuring the complete victory of the last anti-encirclement and suppression.

However, after all, Guangwu had the responsibility of negligence and slackness in the war, and he almost fell into the passive battle against encirclement and suppression in the base areas, and this responsibility cannot be concealed.

As a result, the Grand Commander Guo Tianxing was the first to stand up and oppose Lu Shi's proposal, resolutely disagreeing with Guangwu to continue to serve as the garrison of the fortress, for fear that the same mistake would occur again.

The reason for Lu Shi's insistence is that although Guangwu is wrong this time, in fact, the fault is not all in Guangwu himself, the first is that Chenjiabao is just a fortress, not a fortress in the real sense, and the terrain is not right, it is difficult to defend in anyone's hands, and second, this time it is a special group of people - Suide Ding, Guangwu is carrying the surrender of soldiers who were born in Suide, and they were drilled into the air of family affection, so there was a fiasco in this vicious battle.

In fact, speaking of which, it was Lu Shi's own arrangement that was not well thought out at the beginning, and he also ran into Zhou Ji, a freak who was loyal and diligent in royal affairs.

Third, what made Guangwu not attack was his own and Geng Kui's decision, if it wasn't for himself and Geng Kui who were too conservative at the beginning, with Guangwu 500 against Zhou Ji 1,000 to take the initiative to fight, they would definitely be able to win the battle, this is because they did not delegate power to lower-level generals, and the command was rigid, later, Lu Shi and Geng Kui also deliberately made a deep review at the conference, and therefore, Lu Shi and Guo Tianxing for the first time delegated power to low-level generals in various places, and at the same time, it also gave birth to semi-independent military governors such as Wu Tao, Li Li, Wang Xin and other places.

Therefore, for this reason, Guangwu did not make much mistake. This crisis is still more responsible for the upper echelons such as Lu Shi himself.

In addition to the reasons mentioned above, there is another reason why Lu Shili supports Guangwu, that is, when Guangwu was in a war crisis, he immediately decided to occupy the city gate and insisted on holding on for three days, and completely dragged Zhou Ji, which reflected Guangwu's ability to take charge of the situation and make decisions in danger.

"This is a waste, this is a blow to the new generation of generals." At that time, Lu Shi was heartbroken at the meeting.

At this meeting, Lu Shi, the rare king of Chuang, who had always accommodated Tianxing, and the great commander Guo Tianxing, who had always been obedient to Lu Shiyan, had a bull and argued for a long time, and no one could convince anyone.

But not only did everyone not worry about the discord between the two and bring harm to the future development, but everyone was overjoyed.

There is no other reason, the Great Commander Tianxing no longer relies heavily on Lu Shi, he doesn't care about everything, he has begun to think about things independently, and help King Chuang share his worries, the second joy is that Lu Shi is not thinking about other people's opinions and ideas everywhere, but seems to be resourceful and indecisive, giving people the feeling that he seems to be a little weak The good old man, now I also see Lu Shi's insistence on correct opinions.

In fact, Lu Shi also felt that his personality had slowly changed in the midst of blood and fire, and as for whether he became better or worse, he could only judge it later.

For this matter, the two fought back and forth for two months, and in the end, Lu Shi gave in.

But instead of backing down and agreeing to the opinion of the stars, the meeting was convened again to resolve the disagreement with a new solution, according to the opinion of all the people on the ground and the majority vote of the minority. As a result of the vote, it was decided that Guangwu would continue to act as the garrison of the fortress.

But this time, Lu Shi and Cao Meng, the commander of the garrison, delegated power together, and if there was a war in the fortress, they would be handed over to Guangwu to deal with the decision.

This decision made Guangwu grateful, although he did not swear by bold words, but he practiced the correctness of Lu Shi's arrangement with practical actions.

The disagreement also had the added benefit of a new method of decision-making in the base areas, that is, once everyone disagreed on a matter, they voted on it, and the minority obeyed the majority, and the good tradition was continued for hundreds of years. This made the future Han regime take many detours.

In accordance with Lu Shi's established policy, the principle of attacking in the south and defending in the north, after appointing the garrison of Chenjiabao Fortress, at the same time, he once again built a garrison from the fortress, and incorporated the fifth and sixth teams of the old eighth team into it, although those two teams were greatly dissatisfied with turning their field army into a garrison, but everything was based on obedience to orders as a prerequisite, and at the same time, Lu Shi repeatedly explained to them the importance of the fortress, which was not to belittle, but to reuse, so he was reluctant to carry it out.

With these 600 regular spearmen, a part of the qualified local militia was upgraded again to form a 1,000 garrison army, of which 600 were arranged in the fortress, and the equipment and training were all based on the old 8th team, and the remaining 400 were garrisoned at the fortress of Chenjiabao, making the two places each other's horns and becoming a real fortress group.

When Gao Yingxiang led an "army" of 100,000 displaced people to Weinan and wanted to snatch the fruit, he was faced with this fortress like an iron wall.