Behind me is the entire history of mankind!

Chapter 40 The Bastion
"As expected of Da Vinci."

Standing on a ramp, Lincheng watched as the cranes quickly erected by the players were gradually placing huge basalt stones one after another in the excavated foundation, and gradually built up a nearly three-meter wall.

The design of the entire city wall was gradually revealed in front of their eyes.

Einstein also looked closely at the gradually formed part of the outer wall, which is different from the convex polygon of the general city wall and fortress, but is composed of one and many corners.

From the bird's-eye view of the dug foundations, it looks like a rose with thorns standing on the ground.

"This is a bastion?" Einstein recognized the design.

Since Shenzhou completed the great unification very early, and the main enemy at that time, the nomads in the north did not pay much attention to artillery and firearms, so the development of the city walls in China was less than a transitional era compared with the West, and the modern city walls suddenly disappeared. , seems very abrupt.

Therefore, many people feel that the city wall is powerless in the face of artillery.

But in fact, anyone who knows the history of the world knows that as long as the city wall is thick enough, it still has a good defense against artillery before the [-]th century.

Soon after the Ottoman Empire captured the capital of the Roman Empire, Western European countries began to transform their existing castles to resist the threat from Ottoman artillery.

The first change is naturally reflected in the city wall.

European countries were not as wealthy as China at that time, so many city walls could not meet the characteristics of high and thick at the same time.

Once the city wall becomes thicker, the cost of construction will also become higher. Therefore, in order to save the budget, and at the same time prevent the city wall from collapsing under the attack of artillery, reduce the damage of artillery.

During this period, the height of the city wall began to decrease, and it was replaced by larger and deeper moats and moats. Of course, these were not enough.

First of all, the soldiers on the defending side often shoot the enemy condescendingly, so when the enemy charges towards the city wall, as the distance between the enemy and the castle gets closer, the angle between the enemy and the soldiers on the defending side will also change. As the enemy gets closer to the defender, the position of the enemy will gradually move downward.

This undoubtedly increases the difficulty for the defenders to aim. Therefore, in order to eliminate the adverse effects of this phenomenon on the defenders, people designed the structure of "protective slope".

To put it simply, it is to fill a triangular area with soil on the edge of the moat to form a gentle slope around the castle, so that the gentle slope forms a straight line with the line of sight of the defenders, so that the defenders can aim and also Can defend against artillery bombardment.

This triple line of defense consisting of low walls, moats and slopes was the earliest method used to defend against artillery, and it was even used until World War I.

In the picture of Vaux Fortress in Battlefield [-], the fortress on the side of the French army's birth point still retains this structure.

The French army trying to climb back to the fortress had to cross the gentle slope. Since the French army's marching route on this gentle slope was in line with the German army's line of sight, the French army on this route was like ants crawling in the eyes of the German army. Yes, it's like a target, and with the addition of trenches, it can't be hit at all.

Some Battlefield players also consider this to be some kind of game bug or map design flaw.

The bastion is the improvement on this basis, changing the fortress from a convex polygon to a concave polygon.

Such an improvement made it possible for the attacker to expose more than one bastion face (usually 2-3) no matter which point the attacking castle was on, and the defender could use crossfire for multiple strikes with almost no fire blind spots.

Moreover, shells are prone to ricochet when hit on a sloping steel plate. The sloping armor used on the tank is to tilt the armor upwards to maximize the probability of ricocheting. The sharp and sloped edges outside the bastion tower are the this effect.

It was not until the three-dimensional attack of explosive bombs and aircraft that the advantages of the bastion completely disappeared.

Of course, after seeing the huge mobile fortress, Lincheng would not naively think that the enemies he would face in the future would not have planes and rockets.

But Lincheng also knows that even if these people own airplanes and rockets, they must be the legacy left by the old humans. Maybe some people have the ability to manufacture these things, but it is absolutely impossible for every force to have them.

Against an infantry army armed with guns, this kind of bastion is quite terrifying.

Moreover, there is no invincible city in this world, and the eternal fortification itself is very useful, as long as you know how to use it, instead of defending it.

Even in the period of cold weapons, there were no guns and artillery to suppress the enemy, and the use of crossbows and arrows, these shooting angles without dead angles posed no less threat to the enemy than high walls.

Of course, due to the short walls, without firearms, and the crossbow bolts cannot form a firepower net, it is easy for people to climb the city, but the moat and trenches make up for this to the greatest extent.

However, Lincheng felt that with the help of these scientists, it would be a matter of time before they could use firearms.

If it is just because there are no firearms to build a high wall, it is not only unnecessary, but also not cost-effective.

The structure of the bastion is destined not to be too large, but the interior space is enough to build some simple buildings to accommodate hundreds of thousands of people, and then the farmland is planted outside the city.

This will be used as a military fort, as an important stronghold of the United Front ground territory.

As long as you rely on this fortress, you can even face enemies dozens of times your own and some tanks without aircraft on the opposite side.

And the most important thing is that the origin base is behind you. As long as the base on the other side of the underground passage railway is occupied, supplies can be transported by railway without worrying about the other party's siege.

Not only can you fight protracted battles, but you can also fight roundabout battles, double-teaming the enemy back and forth.

Even if the territory expands in the future, such bastions can be built at important nodes.

"After Da Vinci passed away, the design of this bastion was officially perfected."

Einstein looked at the bastion, "Has he ever learned?"

Lincheng shook his head and said nothing. He didn't know whether Da Vinci had learned how to make a wall against artillery through some channels, but he knew that even if Da Vinci said that he came up with it himself, he didn't know. Accident.

Because he is Da Vinci, the "god" from the Renaissance era.

(End of this chapter)