The group continued to move forward and came to a platform where all sorts of machines were kept, and aliens were constantly escaping. The crowd couldn't figure out what was going on, but after a while, the sirens began to sound.

"What's the situation, is the fortress about to blow itself up?" Lian Yan joked.

"It's impossible, such an important place, you can't say you don't need it, you don't need it!" Yuan Dou said.

At this time, Shi Han, who was leaning against the window, showed a surprised look, and then turned his head and told everyone, "Look outside, the big battle is fighting again." Hearing this, Yuan Dou looked out the window, and the dark cosmic background was being illuminated by firelight, and it was continuous, as if something big was happening. Looking at the current situation, it is not difficult to guess that it is the aftermath of the battle. Seeing this, Yuan Dou suddenly thought, could it be the victory of the human side?

"Wait, what do you think that's that?" Just when Yuan Dou was looking out the window and excited, Lian Yan suddenly reminded.

Yuan Dou followed Lian Yan's point and saw the end of the platform, where a heavy machine was leaving. At the scene of the scattered escape of all aliens, an unsociable vehicle appeared, and Yuan Dou suddenly had a guess. "Is that something important? Stargate? Yuan Dou's words made everyone react, and then they looked at each other, and then chased after them. It seems that this time our mission should be completed, just stop that heavy machine. As he spoke, several people chased after him at a fast speed, and it didn't take long to stop the machine.

At this point, they came to a special room, and in the middle of the room was a rotating glowing instrument, very large. Yuan Dou and the three of them solved the driver with three strokes and five divisions, and after stopping the heavy machinery, everyone found what was in front of them. Just when everyone was surprised, Cheng Yin suddenly said, "This should be the center, and the bottom should be the core, I think we can break the entire fortress." Chengyin's words made Chizumi sigh, it turned out that he also knew the function of this thing, but he was a beat slower to react. But now everyone knows what to do next, but before they can do so, they need to confirm the loot they have captured.

Everyone came to the cargo hold of the machine, and it was an important thing inside, as expected. Although the appearance of that thing was unfamiliar to everyone, through discussion, everyone still agreed that it was the control system that controlled the alien gate of the fortress. It is a device composed of six cubes stacked on top of it, with a rotating diamond shape at the top, which is two meters tall and more than one meter wide, and may be easy to carry with a mech. So, the task of taking away this device was given to Liyuan.

Next, the crowd gathered at the center, where a layer of transparent glass stopped them. The glass that seems to be very brittle looks strong under Yuan Dou's fist, but fortunately, with Ye Xi, as soon as the vacuum is cut out, the glass shield is immediately cut open. After the shield was opened, the noise began to appear, although it was not harsh, but the continuous high-frequency sound still caused headaches for everyone.

A little farther away, the general people discussed the sabotage plan, and it didn't take long for everyone to unanimously decide that the task of sabotage would be handed over to Senju and Naruin, and the others would begin to prepare for the evacuation. After the two stayed, the group began to look for the most suitable route to leave. It's very easy, just follow the direction of the aliens' retreat, and in a short time, they will find the landing platform where they left. Later, the group sent the route to Senju and Nariyin through the contact device. The two men who had been given a route to retreat began to move, jumping off the running center. The two of them flexibly dodged all kinds of obstacles, and finally came to the point, and then Senju planted a dark thunder, and left the center with Naruin. Next, just wait for the set Dark Mine to explode, which is enough to destroy the center, and then the entire war fortress.

Although the three of them are not good at using mechas, the three of them are still equipped with mechas. At this time, they and Liyuan and Shihan were waiting outside the platform, ready to flee at any time. After waiting for a while, the surrounding aliens were no longer visible, most of them left in flying machines, and others, seeing that they were here, all chose another platform to leave. Just when everyone began to worry about Senju and Serumin, they suddenly felt the shaking of the ground, and then they heard the sound of explosions, and everyone looked into the depths of the passage, where it had begun to shake, and there were continuous collapses, and it was obvious that the fortress had begun to be destroyed. But for a long time, the figures of Senju and Chengyin were not seen, and everyone began to get anxious. Fortunately, it didn't take long for everyone to see the two mecha flying quickly, and they were immediately relieved.

At the same time that Yuan Dou and his party sneaked into the war fortress, the human allies also started a feint after receiving the news. A large fleet set off to fight near the constellation Elfa Sagittarius. The two armies are fighting, and although they are evenly divided, the human allies still have a very obvious disadvantage, and as long as they continue, they will soon become defeated. But just as they were about to return to the defensive circle, suddenly a hole appeared in the enemy's fleet that should not have appeared. This loophole was instantly detected by them, so the commander decided that this was a golden opportunity, whether it was to break through the enemy's fleet or inflict heavy damage on them. He gave a real onslaught, and under one operation, the enemy was surprisingly vulnerable, and even appeared in a state of rout. This information immediately spread throughout the fleet, and at the same time discovered that the enemy began to appear contradictions. Just when the commander couldn't figure out the reason, the report he received suddenly made him realize. It turned out that when the battle was in the middle of the battle, the enemy's fleet caught fire in the backyard, and the problems that arose in the war fortress, which was the enemy's temporary base camp, shook the enemy's will to fight, and that is why there was such an obvious error in judgment. The commander understood part of the reason, and immediately gave the order, and the whole army launched a general attack.

In this general attack, all the allied forces were mobilized, and even the fleet that was guarding the base was dispatched. When the mighty army presses up, it immediately gives people an irreversible momentum, riding this east wind, the human allies triumph all the way, constantly destroying the enemy's fleet, until the enemy dares out of the Sagittarius star system. As a result, an enemy surprise attack ended in failure, and the allies of humanity were given enough time to build a defensive line, which would become an impregnable stronghold, and the enemy would have to spend ten times as many troops as they could break through. It can be said that after this battle, these people have completely gained a firm foothold here, and at the same time, they have successfully taken down a stronghold star system that helps the solar system.