Lieutenant General Rumanlin did what Qin Chuan said.

The renovation of tunnel entrances and the allocation of internal maintenance personnel... The former is relatively easy, just to construct according to the drawings, while the latter requires the training of professionals. For this reason, Lieutenant General Lumanlin specially dispatched a group of maintenance personnel from China to learn from the French. After getting familiar with this batch of equipment for a while, he replaced these French people.

Then there is the construction of backscene fortifications.

Qin Chuan never thought that a dead line of defense could win the enemy by staying in the line of defense. They must bravely step out of the fortifications to fight the enemy, otherwise even the most solid fortifications would be just a safe haven for escaping reality.

Qin Chuan can get up and move around in more than half a month, but he must hang his arm around his neck.

At this time, he and Lieutenant General Rumann went to the Magino defense line together, and then surprised to find that it was completely different from the Magino defense line weeds that he had seen before... The French side's security area was originally covered with weeds, houses, and even hills, but now it has been completely shrouded and turned into empty space, and barbed wire fences were also pulled in between.

Lieutenant General Rumanlin explained: "We think those things will hinder our vision, so that it will look much better. In the future, mines will be buried in this area and anti-tank trenches will be built!"

Qin Chuan nodded in agreement, which would expose the US, British and French forces nakedly to the range of defense artillery and machine guns... Some details need to be really started to set up defense before they can think of it, and this is one of them.

At the input port of the defense line, cars lined up in and out in and out... To be precise, there are two holes, one in and the other out, and the height of the hole is just enough to drive a car full of supplies into it.

"Those cars can be driven directly into the warehouse to make goods!" Lieutenant General Rumanlin said: "It can be seen that the French thought very thoughtfully, but these transport inputs will soon be blocked!"

Qin Chuan understood that these transport imports and exports were so large that they would become the key targets of the enemy's attack...it could even drive tanks into it.

Therefore, after replenishing enough supplies, they will be blocked.

"But we are going to dig out several similar transport inputs at a location five kilometers later!" Lieutenant General Ruman spread out the map, searched for a while and pointed at a point: "In this, at the back of the main defensive zone, only when the enemy basically breaks through our defense line will threaten there! Once the war breaks out... we can get supplies from the German direction, and cars can drive into the warehouse to strengthen goods, and then transport these materials to all directions through electric trains!"

"In such a place, we must do a good job of anti-seepage!" Qin Chuan said.

"You mean..."

"The car can enter the warehouse directly!" Qin Chuan said: "What if the enemy's spy was driving a car full of explosives and sneaking in?"

Lieutenant General Rumanlin's expression changed when he heard this.

"It's right!" He thought about it and said, "We must strengthen the investigation!"

"It won't work!" Qin Chuan said: "Enemy spies are everywhere, they can even instigate our people and bring the bombs in!"

"So...what should we do?" Lieutenant General Rumanlin asked.

"Set up a transit station!" Qin Chuan pointed to the map and said, "For example, two transit stations are set up within a six-kilometer range, and external cars can only reach the transit station, and then drive an empty car to return... The rest will be left to the internal fixed and trustworthy personnel to complete!"

"Good way!" Lieutenant General Rumanlin nodded, and then asked Major Fein beside him: "Have you remembered it?"

"Of course, general!" Fein replied: "No word of mouth!"

Walking into the underground fortifications on the line of defense, it would be a different scene. The underground passage that was originally dark, humid, and stuffy, needed to use flashlights to walk in it was already shiny all the way, and the rows of lights on the top stretched along the passage and the air was very fresh.

Every 100 meters, there will be a small concave post on both sides of the passage... It is for sentries, and it is also to avoid the passage from being blocked. For example, two carts and stretchers meet in the passage, and one of them can be temporarily avoided at the small post.

"This is the result of the power supply restoration!" Lieutenant General Ruman said with a smile: "God, I have never discovered that this place is actually an underground city before. Otherwise, I would have moved in long ago!"

"General, I heard that you have set up a command post here!" Qin Chuan asked, "I have stayed in it for a few days!"

"That's right!" Lieutenant General Rumanlin replied: "And it feels pretty good. After living in the villa for a few days, I feel a little uncomfortable!"

"Yes!" Qin Chuan nodded: "Just like I'm used to targeting people rather than rabbits!"

Lieutenant General Rumanlin couldn't help laughing.

Qin Chuan did not say that Lieutenant General Luman Lin should have a psychological shadow after the last battle at the hunting ground... He was worried that the guerrillas or other organizations would be unfavorable to him, and underground fortifications were obviously much safer than villas.

In other words, you can find a sense of security here.

It's a bit like Hitler... Hitler could live in any high-end and luxurious villa, but he had to build one bunker after another for himself and endure mosquitoes, moisture and depression in it.

The reason is that it lacks a sense of security.

This may not be a good thing for Rumanlin, but it is obviously not a bad thing for Qin Chuan... The more insecure Lieutenant General Rumanlin lacks his sense of security, the more he will devote his mind to the construction of underground fortifications, and even dream about how to build it better and safer.

"Look, Lieutenant Colonel!" Lieutenant General Rumann took a few steps and introduced ahead: "The French even built an elevator here! Using it, we can easily reach each floor. Of course, there are still stairs next to it, which is to avoid in case of electricity supply problems or the elevator is blown up!"

Qin Chuan looked at the map... There are seven floors in the entire underground fortification, and the lowest floor is used to store ammunition supplies. Upwards are electric trains, and upwards are field hospitals, military stations, etc. Then there are the top several stage defense layers connected to the ground bunkers and armored towers.

"We should establish a unified standard for them!" Qin Chuan said: "For example, field hospitals, ammunition depots, etc. are fixed in a certain part! I mean, all underground fortifications are the same!"

"Why?" Lieutenant General Rumanlin asked in confusion.
Chapter completed!