After the news of the siege of the Seventh Division spread, Guo Xing'a, Tan Shaoguang, Actun and others were all quite surprised, but Tan Shaoguang and Actun both believed that the Seventh Division had strong combat effectiveness, the main force had not been damaged, and the terrain was quite favorable. If the reinforcement of friendly and neighboring forces on the left and right accelerates, it can create an opportunity for a decisive battle with the main force of the Russian army and annihilate the main force of the Russian army in Asia in one fell swoop.

Guo Xing'a didn't say anything about Tan Shaoguang and Acton's thoughts, but he was very uncomfortable in his heart. In the current situation of the Seventh Division, Guo Xing'a always has a sense of déjà vu. Goxinga had a hunch that a decisive battle would not happen at all, and that the Seventh Division would be in great danger. It's a pity that Guo Xing'a worked hard to brainstorm for a long time, but he couldn't remember why he felt that the situation of the Seventh Division was familiar, and he couldn't say why the Seventh Division was in danger. Anyway, the seventh division is surrounded, no matter whether it is a decisive battle or not, it should go to the rescue according to Tan Shaoguang and Acton's suggestions, and I want to walk and see!

As it turned out, the situation was actually quite good. On the night that the 7th Division was besieged on Heights 15, a rare blizzard fell within a radius of 100 miles. The Manchurian Army, which reinforced the 7th Division, could not move, but the Russian army was also unable to move, let alone launch an attack on the 7th Division, which was entrenched in various commanding heights on the 15th Heights. The 7th Division has run out of supplies, and the heavy snow will put their food reserves to the test, but they also have time to deploy on the 15th Heights, and it will be extremely difficult for the Russian army to eat them.

"The heavy snow can buy the Seventh Division at least three days of solid defense time, and with these three days, the Seventh Division is definitely stable!" Acton was very excited, he was very confident in the 7th Division, because the political commissar of the 7th Division was Amba Lingwu.

In addition to the hereditary prince of the county and the political commissar of the division, An Ba Lingwu also had a very remarkable identity, he was an expert in civil engineering in the Manchurian Empire. Before joining the army at an advanced age, the nominal governor Amba Lingwu had nothing serious to do, and could only develop his own hobbies. Amba Lingwu, who ran to Changchun when he had nothing to do, met an old friend of his fifth uncle, Yu Wendao, a leading figure in the architecture of the Manchurian Empire. After some exchanges, Amba Lingwu became very interested in construction engineering, and under the name of Wendao, he concentrated on studying engineering knowledge. By the time he joined the army at an advanced age, he was already a doctor of civil engineering in the Manchurian Empire, presided over the construction of many magnificent buildings, and had very rich experience in design and construction.

After throwing his pen to paper, Amba Lingwu has well integrated his knowledge and profession, and has a high attainment in the construction of fortifications. It is not possible for Amba Lingwu to command a war, but it is a first-class fortification. After several martial arts exercises, the military had a high opinion of the fortifications of Amba Lingwu. The fortifications presided over by Amba Lingwu were built quickly, the materials and labor were very economical, and the ideas were ingenious and the quality was solid. Gilzhang'a, Enyuan, Harbara, and others, who were more prominent in the offensive of positional warfare, all believed that once the fortifications of Amba Lingwu were formed, it would be difficult to overcome them unless they had five times the number of troops and three times the casualties.

"Uncle, say hello! How to repair this fortification, the brothers are ready, just waiting for your order! "As Acton expected, Ji Xing is on the battlefield asking Amba Lingwu how to repair the fortifications.

"Master, it's not easy to do!" Amba Lingwu was a little toothy.

"Uncle, don't you dare to joke, if you don't know what to do, our seventh division will be finished!" Ji Xing's eyes widened, but he knew that Amba Lingwu never joked.

"Division, the enemy below must be more than ten times more than ours, relying on ordinary defense lines we will definitely not be able to hold on, we must have a strong pillbox to rely on, in order to hold on. However, our troops are on the march, and there are very few cement and steel bars in the materials, and we are really unable to build a large number of pillboxes. It can be handled with local materials, but the amount of work is very huge, and it is by no means possible to complete it in ten days and half a month. "Amba Lingwu also has a calculation team, the abacus is crackling, and all kinds of data are calculated very accurately.

"You have to dig trenches!" Ji Xing began to rub his face, and he felt his head swell a little.

"It's not easy to dig trenches, the soil here is very shallow, and most of the ground is granite, which is unusually strong!" What Amba Lingwu just said about using local materials is to study the granite under his feet.

"Oh my day, that's not the end of the calf!" Nahai and the others all began to worry.

"I have another way, but it's very immature, and it's hard to say whether it's feasible!" The knowledge of Amba Lingwu is being transformed into the power of the Seventh Division.

"Uncle, just say it! No, we have to try! "Ji Xing doesn't want to be on par with the Russian army, people are more than ten times his own, and it's best that he can end up together.

"The distribution of rock formations here is not very regular, and there are still many soil voids underground, so we can consider developing underground. We can dig tunnels in the soil, all the troops enter the tunnels to defend, and then let the sappers blow up some of the rocks as a communication channel, so as to form our defense system. However, the distribution of this soil layer is also very irregular, and it is difficult to say whether it can form a defense system, and the ground is all frozen, so it is very difficult to operate. Amba Lingwu said his last thought.

"That's a good idea! I, Amma, told me that when the general was stationed in the deserted village, in order to resist the invasion of the Taiping army, he built an underground defense system! Nahai remembered his dead daddy again.

"Don't hesitate! We have no other way, let the brothers the guys and get started! Ji Xing also very much agreed with Amba Lingwu's idea.

The high-level plan was decided, and the Seventh Division was immediately busy. Amba Lingwu led a group of technical backbones of engineers to survey the underground situation and quickly draw construction drawings. Ji Xing took the whole division up and down, picked up the shovel and iron drill together, and worked in full swing. The observation post of the Russian army also discovered the abnormal movement of the seventh division, and quickly transmitted the news back to the Russian army headquarters, and a group of senior generals of the Russian army were stunned. The Russian army has also dug trenches and repaired fortresses, but what does it mean to dig into the ground like crazy. Moreover, in order to speed up the progress, the Seventh Division used a large number of medicines, and the No. 15 Heights seemed to have been bombed, and the rumbling sound was non-stop, which made the Russian army even more confused.

"Cowardly Manchurians, do you want to dig a tunnel on the top of the mountain so that you can escape?" Vasilev, chief of staff of the Provisional Corps of the Russian Army, was completely unable to understand the actions of the 7th Division.

"The top of the mountain is densely covered with hard granite, and the Manchurian army will definitely not be able to build trenches, they may want to take soil from the ground and build a fortress!" Mikoyan, the commander of the first column, looked down on Treviyav very much, this bastard who relied on his background to be in a high position, except for nonsense, almost did not play a good role.

"The Chinese can always come up with strange ways to make the soil as hard as rock, and we must not take it lightly. Let the troops hurry up and prepare, and when the wind and snow stop, immediately launch an attack on the top of the mountain, we must destroy them as soon as possible! The commander-in-chief, General Stoletov, did not want to listen to the bickering of his subordinates, he just wanted to eliminate the 7th Division as soon as possible, disrupt the offensive of the Manchurian Army, and let the Russian army stabilize the defensive line. Stolletov's life is not easy now, the four divisions and seven brigades of the Manchurian Army have been outflanked from both flanks, and if the Russian army cannot solve the seventh division as soon as possible, they themselves will be encircled.

The Russian army's speculations are baseless, but they all guessed about the same. The Seventh Division was indeed digging tunnels, but not to escape, but to form a defensive system. The soil area of the main peak of No. 15 Plateau and the various hills was narrow and scattered, and the Seventh Division could only build a combination of scattered small and medium-sized defensive tunnels, and then connect them in series with large-scale tunnels. The Seventh Division is indeed building fortresses, digging tunnels and making a large amount of useless earthwork, and idleness is idle, otherwise some surface fortifications will come out. The Seventh Division did come up with a way to make the dirt as hard as rock, and in the cold north, it didn't take much wisdom to do these things. According to the method taught by the teacher, Amba Lingwu added turf and water to the soil, and then compacted it, so that the soil only needed to freeze overnight and was no different from concrete.

Four days later, the skies cleared completely, and the weather suitable for battle finally came. The fifteenth heights have also completely changed, the top of the mountains are densely packed with fortresses, and on the main peak there is a huge fortress group that is even more majestic than the Winter Palace. As soon as the temperature rises above zero, these seemingly terrifying fortresses will be reduced to ruins with just a single small-caliber shell, and even some small fortresses will collapse on their own. But now the temperature is minus 37 degrees, and these terrifying fortresses are definitely even more terrifying than they look. Amba Lingwu felt that even if his own bomber formation took this place as a target, he would be able to survive these forts.

"How many people are there, and how can they complete such a huge project in just a few days?" Tosretov is about to go crazy, and the speed of operation of the Manchurian Army is really too amazing.

Tosretov clearly did not understand the meaning of management or the speed of streamlining operations, and of course his understanding of architecture was limited to scale. The magnificent stone church takes decades to build, but the mud fortress only takes a few days, and playing with mud is a quick thing. In the early stage of the Manchurian Empire, everyone had to repair houses with straw and mud, and the Manchurians who had experienced that period were all masters in this area, even if they had never done it, they had definitely seen it. Tosretov regretted very much, he should not have let the 7th Division go, he should have let the airship troops risk their lives. However, it was too late to say anything now, the fortress of the Manchurian army had already taken shape, and he could only accept this result.

"Their fortresses are all on the top of the mountain, and the outer positions are still almost empty, as long as we occupy the outer positions, their fortresses are just isolated islands!" Mikoyan gave conscientious advice.

"Attack, attack, destroy them!" Tosretov gave the order for a general attack, not knowing that opposite him was an incomparably huge pit.