The construction inside the energy shield lasted only half an hour. Half an hour later, a familiar feeling appeared in Xiao Yu's heart, as if an invisible strange liliang began to permeate the universe. Xiao Yu saw that countless sparks began to appear on his spaceship, and the shells of some spaceships that were moving too fast began to turn red, and even a few village-level spaceships exploded instantly because they couldn't withstand this energy.

Xiao Yu is very familiar with this phenomenon. Because, Xiao Yu has already experienced it once.

"It's ...... Force field coverage...... Moreover, the strength is even stronger than the flagship-level ship that was destroyed in Tianyuan C...... No wonder...... It must be that this time the force field covering instrument is too huge, and there is no spaceship to load, so the Lukka civilization divided it into several parts, installed them separately on different spaceships, and then assembled them on the surface of Tianyuan A......"

This time, the force field coverage has reached at least 150,000 kilometers. It is five times stronger than the flagship-class ship that was destroyed before.

Within the coverage of the force field, Xiao Yu's combat effectiveness will drop by at least half, which has been confirmed at the Tianyuan C battlefield.

This is unacceptable to Xiao Yu. Such a crazy attack only leveled the situation to a stalemate, and then suddenly their own strength was weakened by half, who can accept this?

For Xiao Yu, the situation has reached the most dangerous time.

"Gotta do it, this force field covering the instrument must be knocked out immediately...... Otherwise, I'm dead. Xiao Yu thought anxiously, and the huge computing power was exerted, and he immediately made a jihua.

"Beijing! Tianjin! Two city-level spaceships, each leading 10,000 spaceships, to break the energy shield and kill the force field generator! ”

Xiao Yu quickly gave the order.

The huge fleet of 20,000 spaceships instantly set off and quickly left the battlefield, and in just a few minutes, they came to the top of the energy shield arranged on the ground of Tianyuan A.

Xiao Yu was not worried that these spaceships would cause his own strength to be weakened. The reason is very simple, the Lukka spaceship will definitely not be destroyed by the Shili Field Generator, and they will inevitably draw their strength to protect the energy shield. Even, Xiao Yu still had a careful thought, hoping that after Luka Civilization transferred the spaceship away, he could take the opportunity to break through.

Even if Luka Civilization did not transfer the spaceship, but took advantage of his weakness to attack himself with all his might, Xiao Yu was not afraid. Xiao Yu has estimated that if he attacks with all his strength without hindrance, he can destroy the force field generator within three minutes, and Luca Civilization will take at least twenty minutes to kill him. In other words, if the Luka civilization ignores the force field generator and attacks itself with all its might, his fleet can completely rush back after destroying the force field generator. This time difference ensures Xiao Yu's safety.

Sure enough, just as Xiao Yu expected, as Xiao Yu dispatched 20,000 spaceships to attack the force field generator, Luka Civilization also dispatched Liliang - about 3,000 spaceships, and pursued them all the way.

The Tianyuan A battlefield was divided into two. On one side is the war between the encirclement and counter-encirclement of Xiao Yu's flagship location, and on the other side, there is the war between the destruction and anti-sabotage above the energy shield and force field generator.

Twenty-three thousand spaceships, just over a hundred kilometers above Tianyuan A, fought fiercely. According to the distance from Tianyuan A, the size distribution of the spacecraft has a certain pattern.

The farther away from Celestial A, the larger the spacecraft becomes, and the closer it is to Celestial A, the smaller the spacecraft becomes. In low-earth orbit, it is the world of village-level and township-level spacecraft. Due to their mass and size limitations, large spaceships cannot get so close to Tianyuan A, but can only fight thousands of kilometers away.

On the ground of Tianyuan A, there is a giant energy shield covering an area of tens of thousands of square meters and a height of hundreds of meters, and the force field generator is inside the energy shield, constantly emitting a deadly force field. On top, there are countless ships that are constantly entangled and fighting.

Xiao Yu manipulated a county-level spaceship to take a chance, and sent an energy cannonball towards the energy shield, this cannonball hit the energy shield after a few tenths of a second, and immediately, the surface of the shield rippled like water waves, and after a period of shaking, the water waves disappeared, and the energy shield had no effect at all.

But this county-level spaceship was seized by the enemy spaceship, and was hit by dozens of energy cannonballs at the same time, and immediately, its spaceship shell was shattered, lost its power system, and began to drag the billowing smoke and fell to the ground. The moment it touched the ground, it exploded, blasting a large crater out of the ground of Tianyuan A.

This is a microcosm of war, and such scenes are happening in dozens or hundreds of places at the same time.

"It can't go on like this." Xiao Yu was secretly anxious in his heart. Within the coverage of the force field, the attrition rate of one's own spacecraft has increased significantly, and if it goes on like this, let alone eight hours, it will be a bit difficult to hold on for four hours.

"What to do? What to do? What else liliang I haven't used? Xiao Yu thought anxiously, and suddenly, Xiao Yu remembered something.

"Damn, an air attack won't work, so a ground attack! In the various construction bases on the ground, I still have at least tens of millions of robots sealed, and with the help of various mechanical equipment, they also have a certain attack power! Good! That's you! ”

Immediately, Xiao Yu issued an activation order for the ground base, and countless robots that had been sealed and stored in the warehouse began to wake up, like resurrected zombies, out of their tombs.

Some came out of planetary engines, some came out of the Academia Sinica, some came out of equipment processing plants, some came out of foundries, and some came out of mining bases......

Countless robots from all over the world have come together because of the same goal.

The robots began to move towards the force field generator. Because they are distributed all over Tianyuan A, there are only two million robots that can arrive within half an hour. Half an hour later, the robots from the rest of the world will arrive one after another.

So, on the ground of Tianyuan A, an amazing scene happened.

A vast army of robots is formed. These robots come in different shapes, including welding robots, oxygen tanks and spray guns on their backs that can be used as improvised weapons, metalworking robots, their high-strength milling cutters that can be used as weapons, underground mining robots, their high-speed waterjets that can barely be used as weapons, transport robots, which can be used as vehicles that load robot armies to move quickly, and countless robots, according to their different functions, form a strange army.

The gravitational force of Tianyuan A is smaller than that of the earth, and Xiao Yu's technology is more advanced than that of the earth period, so the advance speed of these robot armies has reached an astonishing 1,000 kilometers per hour, and in ten minutes, the first batch, 300,000 robots arrived at their destination.

One thousand kilometers per hour is an astonishing speed for the speed of ground movement, but it is negligible compared to the speed of a spaceship of several thousand kilometers per second. Therefore, the force field generator has no effect on low-moving objects like them.

This is an advantage, but the disadvantages are just as obvious. These robots are extremely fragile and largely defenseless. A normal bullet can also de-energize them, and their attack power is weak. But they are superior in sheer numbers.

Often, a stray bullet flies down from the sky, and it can kill dozens or hundreds of robots, and the wreckage of a downed spaceship can kill hundreds or thousands of robots when it falls to the ground and explodes, but if you kill a hundred and a thousand, and if you kill a thousand and ten thousand, Xiao Yu is the most lacking, that is, robots!

Of the 300,000 robots that arrived in the first batch, there are less than 100,000 left at the moment. However, on the field, there are traces of robots everywhere, either on foot or in a transport robot, constantly replenishing here, and they are inexhaustible and killing.

In the first batch, 100,000 robots braved the rain of bullets and immediately started their busy work. Instead of foolishly attacking the energy shield directly, they started to ...... Dig holes in the ground.

That's right, burrowing in the ground. Xiao Yu was sure that the energy shield could not cover the ground. Then, entering the protective shield through the tunnel is a feasible solution. Even, Xiao Yu can go directly to the force field generator through the tunnel and directly destroy it.

Although there are a hundred Lukka ships inside the energy shield, what can they do against the enemies below the ground? Shoot shells? What should I do if I accidentally injure the force field generator? Send the army to fight hard? But even idiots know that it is the stupidest thing for a biological civilization to send a living army to fight the robots of the mechanical civilization in close combat.

Xiao Yu seemed to be able to sense the panic of Lucca Civilization in the face of this situation. Xiao Yu saw that Luka Civilization had divided hundreds of spaceships and began to block the robot army on the ground.

Dozens of kilometers away from the force field generator, a Lucca-class spaceship was firing energy cannonballs at hundreds of thousands of robots below.

Under Xiao Yu's command, these robots deliberately dispersed the distance and dispersed forward, so the effect of the energy cannonball was really not very good. A single energy cannonball can only destroy a few hundred robots within a radius of several hundred meters at most. This number is nothing compared to the huge total number of robots.

Moreover, in all directions, there are ant-like robots everywhere, covering millions of square kilometers of the ground, how can only these hundreds of spaceships intercept this robot frenzy?

Facing Tianyuan IV in the sunset, on the black and bumpy ground of Tianyuan A, countless robots are like warriors on an expedition, singing all the way!