Ten thousand I am across the heavens

Compared to the small-scale skirmishes fought by commanders in the rear, the skirmishes on the front lines are far more violent and place a greater emphasis on adaptability. Commanding small groups in combat is a completely different domain from commanding large-scale armies on the battlefield.

However, relatively speaking, commanding small units on the front lines requires far less strategic vision and computational effort. For most ordinary citizens of the Shanhe Republic who have only passed academic proficiency tests, it is relatively easy to get started.

In fact, legion command has long been prevalent within the Republic of Mountains and Rivers, and has even become somewhat entertaining. While esports on Earth is primarily dominated by FPS and MOBA games, where individual skill often takes precedence, real-time strategy games, though holding a place in the esports arena, are relatively less popular compared to the former two.

In the Republic of Mountains and Rivers, the phenomenon is reversed, with real-time strategy games enjoying far greater popularity. Thanks to neural networks, massive amounts of commands can be input in a short time, allowing for the command of large numbers of troops. In this era where artificial intelligence has been fully integrated into production systems, a vast number of units exist in both the virtual and real worlds, available for human command.

At this very moment on the front lines of the war, the vacuum tunnels responsible for transporting supplies to the front are under fierce attack from all sides. The most important aspect of operations behind enemy lines is cutting off the enemy's logistical supply, and this is precisely the task assigned to the soldiers dispatched by the Ghost Demon Lord.

Inexpensive vacuum tubes are inherently fragile. Each tube must be perfectly straight to allow materials to travel at extremely high speeds. If these tubes are damaged, even the slightest leak of gas or impurity can cause objects traveling at high speeds to be completely destroyed.

Therefore, the Republic of Shanhe has always maintained strict protection for its vacuum pipelines, relying on underground radar to monitor a large area.

Instead of building a wall-like defense around the vacuum pipes, the strategy is to deploy mobile forces to annihilate the enemy before they get close enough to reach the vacuum pipes.

There's no such thing as a foolproof defense against thieves. No matter how strong the city walls are, they can be breached if the enemy gets close. The best way to truly protect these vital systems, like vacuum tunnels, is still to keep the enemy at bay from afar.

Of course, the second best solution is to build a sufficient number of vacuum pipelines. Even if a significant portion of them are destroyed, it will not affect the transport capacity at the front lines.

At this very moment, a fierce battle is raging on the battlefield. A soldier of the Mountain and River Republic leads a legion of 5000 mechanized warriors, patrolling around his defensive perimeter.

They also began constructing underground fortifications in preparation for a possible enemy attack.

Throughout history, earthwork has been an indispensable part of warfare, both offensive and defensive. The construction of fortifications and engineering machinery is essential. The only difference lies in the weapons used in different eras.

In the course of repeated conflicts, the soldiers of the Mountain and River Republic shared their experiences and gradually discovered a set of most practical earthwork techniques for defensive operations.

First, underground operations. The most crucial element is speed. Compared to surface engineering campaigns, digging trenches primarily serves to evade enemy ranged fire, using elevation differences to prevent arrows and muskets from hitting you. However, underground is a different story. While high-speed movement is relatively easy on the surface, cover is scarce, so constructing adequate shelter is essential.

However, the ability to move quickly underground is actually scarce. Without the construction of any underground tunnels, high-speed movement in a subway is impractical. Even with temporary tunnel excavation, the maximum underground movement speed is only a few tens of kilometers per hour. This is already a fairly fast excavation speed. Achieving higher speeds is not impossible, but the resources and energy required would increase exponentially. On the battlefield, this is often not worthwhile, and few would attempt it.

Comparatively speaking, underground defensive bunkers are the least lacking. The thick earth can block the vast majority of attacks. Even attacks at the level of immortals will be greatly attenuated under the protection of thousands of meters of earth. Just like on Earth, even if bombed by nuclear weapons, as long as you hide in a bunker thousands of meters underground, you can remain unharmed.

Therefore, the method of constructing layers of defensive structures underground is precisely to compensate for the insufficient speed of movement underground.

Therefore, the soldiers of the Shanhe Republic, who are currently commanding thousands of mechanical soldiers, spend most of their time directing these soldiers in underground earthwork, digging tunnels. It's like a city excavating ring roads in all directions, constructing a complex network of tunnels to allow their troops to move quickly within them. Once radar detects the direction of an enemy invasion, they can immediately engage the enemy and quickly reach their attack position to intercept them.

At the same time, tunnels can be quickly cut off as needed. This involves burying a large number of explosives within the tunnels. When it's necessary to cut off certain tunnels to prevent the enemy from advancing quickly, and under the premise of destroying vacuum pipes, an entire section of tunnel can be rapidly blown up. This forces the enemy to rebuild, slowing down their progress.

This is something we must guard against. After all, their goal is to hold off the enemy as long as possible and annihilate them as far away from the vacuum tubes as possible. If they accidentally let one or two enemy soldiers slip through and they manage to enter the underground tunnels, then they can utilize the established underground tunnel network for a rapid surprise attack.

Both sides engaged in a back-and-forth offensive and defensive maneuvering, constantly refining and improving their tactics. From the very beginning, the Shanhe Republic warriors employed rapid maneuvering, repeatedly annihilating the enemy beneath the surface before they even reached the tunnels.

As the enemy gradually discovers the tunnel's weaknesses, they launch multi-pronged attacks, using the tunnel for rapid movement. They reach the inner layer and destroy the Mountain and River Republic's vacuum pipes.

The tunnels are now divided into different spherical shells, with each shell's tunnels being independent of the others. Within the tunnels, high-speed movement is only possible on the surface of the corresponding spherical shell. This allows the Mountain and River Republic's defensive forces to move at high speed, while the enemy cannot utilize the tunnels for high-speed advances.

[To be continued]

Please add this to your favorites and vote for it! (End of Chapter)