Show the sword, start from the guerrillas

Chapter 472 Chapter 471, Perfecting the Defense System
The two trenches dug against the cliff serve as personnel passages connecting the inside and outside of the Yixiantian, and also have shooting holes and ventilation holes left at the bottom of the Yixiantian trench, which are part of the defensive fortifications.

For the safety of the passage, the original three-meter-deep trench was only left with a height of 1 meters for personnel to pass and fight. Above this height, the engineers first widened the trench, and then capped it with several layers of logs. In the middle of the logs, there was a layer of cement to block the gaps. On top of the top layer of logs, the cement was compacted, and the overall thickness was 80 centimeters.

Above the cement layer, captured gasoline barrels were filled with sand and placed horizontally on top, just on both sides of the trench. The gaps in the middle of the gasoline barrels were filled with sand, forming a sand layer more than 60 centimeters thick, which was used to isolate shock waves. On top of the gasoline barrels, two layers of logs were placed, and finally the excavated gravel was covered with soil, and a traffic trench that could protect against heavy artillery was formed.

In the traffic trench near the cliff on the side, there are some specially dug ventilation holes, grooves slanting downwards, and shooting holes with an eight-shaped opening.

The opening of the vent is not big, but it can ensure ventilation and partial lighting in the passage. The groove designed to be tilted downward is the kind that can roll down a lot of explosives, with only a small opening. The shooting hole with an eight-shaped opening is 50 cm wide and no more than 30 cm high. The overall angle is downward, just enough to shoot bullets at the bottom of the ditch.

Because there is such a passage on both sides of the Line Sky, the firing holes on both sides are dug alternately, with a spacing of more than 30 meters between each other, forming crossfire. It is worth mentioning that these firing holes are mainly concentrated on the slope to the north after the Line Sky, rather than the section of the Line Sky near the south end. This section of the Line Sky is mainly a combination of ventilation holes and grenade chutes.

In short, a solid position built relying on the narrow gap was completed in September. The first battalion of the special forces regiment and the first battalion of the guerrillas each occupied a passage and fortifications at both ends.

Captain Ou of the Special Forces Regiment came here from time to time these days, and the Chief of Staff also came with him, and then they inspected the terrain around the hills around the arsenal, arranged sentries, and filled some loopholes in the defense. Because the fortifications were completed, plus two main battalions, with a total of more than 1200 troops defending, the security issue here no longer needed to be considered.

What needs to be considered is that there may be some places in the mountains surrounding the arsenal that are easy to climb, which will be the key nodes for the enemy to break through.

After learning about the chief of staff's concerns, Li Yuexuan waved his hand and the special forces team that had completed training left the base and began to circle around the arsenal, looking for defensive loopholes.

"Let the special forces find loopholes? Haha, Peregrine Falcon really thought of that! But it's good this way. The soldiers in the special forces are all good soldiers. I can't say they can climb walls, but they can definitely climb rocks with their bare hands. So, I'm looking forward to where the special forces can find the path to the arsenal. As long as these paths are found and blocked, everyone can rest assured!"

The chief of staff's words were unanimously agreed upon by everyone, and no one raised any objections. Anyone who had seen the special forces training rock climbing on the cliffs of Yixiantian would have no objection to this.

Tian Chuan received Li Yuexuan's order and naturally carried it out very well. In the past, due to the special nature of the arsenal, the special forces did not go wherever they wanted, so they did not go to all the hills around the arsenal. This time, taking advantage of this opportunity, Tian Chuan planned to survey the area on the spot and then come back to make a sand table. Tian Chuan did not tell anyone about his idea, but carefully drew a topographic map every time he arrived at each place. The purpose was self-evident.

Li Yuexuan ignored these things, even though the topographic map was very important. What kind of topographic map could be clearer and more suitable than the three-dimensional topographic map on the auxiliary panel? Wherever he looked, it was actually a process of collecting information. The fast-running brain (or CPU) would collect and summarize this information and enrich the details of the topographic map.

Now Li Yuexuan knew everything about the terrain around the Arsenal, and there was nothing missing. What was he concerned about? It was where Tianchuan and his men would choose as a breakthrough point and then enter the Arsenal's security circle. The main reason why Li Yuexuan was so concerned about this was that it was September of 41, and the day of the Arsenal defense battle was not far away.

The war in the north is still going on. Fortunately, some production equipment was shipped out of the control of the Russians before the war and has now arrived in northern Shaanxi. Once the power problem there is solved, it will probably be time for bullets to be mass-produced. Of course, distant water cannot quench immediate thirst. Whether it is bullet production, engine production, or even tank production in northern Shaanxi, it is difficult to benefit Taihang Mountain in the short term.

Therefore, you still have to do everything by yourself to have enough food and clothing!

A few days passed in a flash, and the special forces returned after completing their mission. It was said that they found three paths around the surrounding mountains and forests that could avoid the guard posts and sneak into the arsenal.

As a result, the chief of staff added new guard posts on the hills where the three paths were located, built fortifications, and deployed a squad of soldiers to guard each. After completing these, the chief of staff was completely relieved about the defense system of the arsenal. However, at this time, Li Yuexuan handed the report to Minister Zhang and asked Minister Zhang to pass it on to the chief of staff.

Li Yuexuan's report was actually very simple - since there were heavy mortars, why not deploy a heavy mortar company within the arsenal? With a heavy mortar company, plus the ammunition output of the arsenal's grandfather generation, it would be enough to protect the firepower points within a 5-kilometer radius.

The chief of staff was stunned when he saw the report, then he laughed: "It is necessary to deploy a heavy mortar company to the arsenal! In my opinion, one company is still insufficient. We should deploy a heavy mortar company at the north entrance of Yixiantian and on Zuohui Mountain. With the cross-defense, the range of artillery fire will be wider! And there is an important production base at the foot of Zuohui Mountain, so it must be deployed!"

The chief of staff reported to the headquarters and immediately mobilized artillery. 40 of the 18 heavy mortars produced last month were pulled out from the warehouse, and two mortar companies with 9 heavy mortars each were formed to serve as the heavy artillery support firepower of the arsenal. For this purpose, two more companies were drawn from the special forces regiment and deployed on Zuohui Mountain to form a defense system with the basic regiment of the second division at the foot of the mountain.

(End of this chapter)