My system is not decent

A so-called "insurmountable line of defense" is so easy to break through. It can only be said that the strategic cost performance of a permanent fortress line of defense is indeed not as high as imagined.

In the three northeastern provinces, there are not only one underground fortification like the Oriental Maginot, but these few.

It's just that these were not built by the defending country, but the neon at the end of the road, in order to avoid the defensive fortifications built by the Soviet Union's offensive.

The devils who were in the final struggling period were all crazy, and many materials were annihilated in the long river of history.

However, Chen Wenzhe was able to communicate with the long river of history and obtain the information buried underground.

For example, Dongning Fortress hides treasures in one place, and another fortification is not simple, because it is an underground city.

This underground fortification with hidden treasures is also located in the northeast of our country.

At that time, the construction was just, and it also consumed a lot of manpower and material resources of Neon.

These defense lines are by no means a wall as everyone thinks, but are built in tunnel style according to the terrain, and the complexity of its internal structure is unimaginable.

Viewed from the outside, this line of defense is inconspicuous, but once inside, you will find that this is actually an underground city.

Its scale is huge, absolutely beyond our imagination.

Its internal arrangement has its own circulation system, which is enough for Neon to arrange tens of thousands of soldiers here.

There is enough space inside the city, and a large amount of food is stored in it for long-term combat use.

In terms of weapons and ammunition, the Japanese army also made sufficient preparations.

In such an underground city, it is reasonable to say that all the staff should have withdrawn after Nihong announced its surrender, but the Japanese army did not do so.

After the surrender of Nihong in 1945, the Soviet Union took over the entire northeast region of our country, and the people gradually returned to normal life.

One day, when an old farmer was working in the field, he accidentally dug a hole in the underground defense line.

It was discovered that this was the secret base of the Japanese army, and there seemed to be a large number of Japanese troops hiding in the entrance of the cave.

The farmer panicked and ran to report to the Soviet army in charge of the place.

Upon receiving such news, the Soviet Union sent a large number of troops to the entrance of the cave.

Due to the existence of the defense line, the Japanese army had the confidence to fight the Soviet army.

This line of defense also brought a lot of trouble to the Soviet army at first, but the Japanese army had been underground for a long time, and their combat awareness was insufficient.

Therefore, facing the Soviet army that had fought against the German army, it was still at a disadvantage, and was finally wiped out within a few hours.

Later, when counting the dead bodies of the Japanese soldiers, the Soviet army was stunned.

Inside this seemingly inconspicuous line of defense, there are more than 2000 Japanese troops hidden.

After the Japanese army was wiped out, this line of defense was not destroyed, but was left as a witness of that period of history.

Later, it was transformed into a red revolutionary holy place.

After that, many Chinese people will visit this patriotic base every year.

As the first provinces to be invaded by neon, the three northeastern provinces have suffered particularly tragically.

The change of the eight-year war of resistance to the 14-year war of resistance is also to let us remember the history that happened, and not to forget the pain of the past in the changing times.

And underground fortifications like this line of defense are definitely not the only one in the three northeastern provinces.

Obviously, all the materials and treasures in that dungeon fell into the hands of the Soviet army at that time.

We certainly don't know these things, but we can imagine them.

At that time, the Kwantung Army built a lot of hidden fortifications in order to achieve the goal of occupying the Northeast for a long time.

And among these fortifications, if you say that there are only military supplies and living supplies, no one will believe it.

No matter who it is, they must put their most precious things in the safest place.

Obviously, these underground defense lines, fortresses, permanent fortifications, and underground castles are the safest places.

For example, in qqhe, they regard qqhe as an important stronghold in the northwestern border of Heilongjiang Province, and they also built huge underground fortifications there.

The underground fortifications there were built from 1931 to 1936 for 5 years.

The people who built the fortifications were all laborers captured by the Japanese army, including Chinese, Koreans and Mongolians.

After the completion of the underground fortifications, these people will not be alive or dead.

Now, when building and breaking ground in Qi City, many bones are often found.

The underground fortification of the Japanese army in Qi City has two landmark buildings on the ground.

One is the big black bag, and the other is the Zhongling Pagoda.

The big black bag is what the locals call it, and it still exists in the suburbs of Nanshi.

In fact, it is an oval-shaped ground military facility, which looks a bit like a big black bag.

It was originally the headquarters of the Japanese army, with three floors underground and a dome on the ground, where troops can be stationed, stored, commanded, and communicated.

Some experts believe that it should have been a complete communication facility for the Japanese army at that time.

The main function is to monitor the radio signals of the Soviet Far East Communications Intelligence Agency.

The Zhongling Pagoda is a pagoda-style building built by the devils to store the ashes of the dead in the Japanese army.

In 1939, the Nomenkan Battle broke out between the Soviet army and the Japanese army in the Mongolian area. The Japanese army was completely defeated in this battle, resulting in the loss of more than 2000 people from the Japanese Second Wing.

The Japanese army built the Zhongling Pagoda specially for this purpose to store the ashes of the war dead.

Now there is only one "washing booth" here. It is said that this place is the place where the devils wash their hands after they go to the Zhongling Pagoda to pay homage to the dead.

The Zhongling Pagoda has long since ceased to exist, and was replaced by the Qishi Workers' Cultural Palace.

There are about five entrances and exits in the underground fortifications of the Japanese army in Qishi.

In addition to the above two, there are three others.

They were the gendarmerie at that time, the railway station, and the Japanese cremation plant.

In the early days of liberation, the local garrison sent engineers to detect the underground fortifications.

Inside the fortifications, there are dense roads, and various facilities such as drainage and electricity are complete.

After advancing for a certain distance, because the detection equipment showed a source of poisonous gas such as mustard seeds, everyone withdrew and terminated the detection.

After the founding of the country, the government organized many investigations and explorations.

It's just because of the unpleasant smell in the underground fortification, which made people feel extremely uncomfortable and ended up with no results.

Qi City was the largest producer of poisonous gas and chemical weapons by the Japanese army in our country at that time, and it has been confirmed beyond doubt.

When the devils surrendered, they destroyed the map of the fortifications, and because they fled in a hurry, many gas bombs and biochemical weapons were too late to deal with, resulting in leaks, which have been preserved until now.

The underground fortification is closely related to the research of chemical weapons by the Japanese army, and there are many biological and chemical weapons left inside.

Now, this underground fortification has become strong evidence of the crime of Japanese invasion of China.

However, in the underground of qqhe, what the Japanese army did and what they hid is still an unsolved mystery.

So it is still impossible to explore and excavate, and in such a place, it is obvious that the materials and wealth left inside are all left inside.

And military facilities like this military base, underground castle, mountain defense line, dark fort, etc., are not known how much is hidden in the three northeastern provinces.