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The leaders of the various countries appeared on the big screen. Everyone’s expressions were very serious. This was because this was the first time Earth had interacted with interstellar space. No one could tell what the final outcome would be.

In the past three years, although the various countries were doing their best to develop day and night, their potential enemy was an unknown alien.

No one knew how far their technology had developed. One could imagine the panic in the hearts of the leaders of the various countries towards such an enemy who they did not know anything about.

When the unknown energy arrived at Jupiter, it had already entered the monitoring range of the Sky Brain satellite. Under the orders of Great Xia’s highest commander, Zhang Keqi quickly publicized the surveillance footage of the Sky Brain Satellite.

It was also in this surveillance screen that everyone finally saw the true appearance of the unknown plan that had been going on for three years. There were four oval-shaped aircrafts that formed an unknown energy. The aircraft at the front was slightly smaller than the three behind, and there was no intuitive weapon configuration. The three aircrafts behind seemed to be guarding the small aircraft. They maintained the same distance and speed as they pushed forward in space.

“It’s really aliens. They still came in the end.”

“This is a team of alien spacecrafts. It looks like their target is really Earth, but what is their goal?”

“What should we do next? Can our newest weapon really compete with the alien civilization?”

Finally seeing the appearance of this unknown energy, Zhang Keqi frowned with a grave expression. With the orders of the highest command, Zhang Keqi had already become the main person in charge of the Earth Space Defense Program.

According to the current situation, it would only take a few days at most for these aircrafts to arrive above Earth. Therefore, Zhang Keqi quickly represented Great Xia and ordered the various countries in the world.

“All countries are to enter a combat readiness state. The three Earth and Moon Space Platforms are all on level one alert. Everyone, the unknown battle has already arrived. Now, it has reached the point where we need to unite against a common enemy. Three years of planning was just for this moment.”

Zhang Keqi’s voice sounded in the command room of various countries. Almost without any hesitation, the countries quickly began to respond. The few Western countries led by the Atlanteans had already set up cosmic air defense weapons in more than eight military bases.

This was the second line of defense after the three platforms. It was specially developed to prevent aircraft from entering Earth and causing damage to the ground.

After three years of planning, the various countries gathered and formed three defensive lines under Great Xia’s lead.

The first was the three Earth-Moon Space Platforms, including the Southern Heavenly Gate. The second was the cosmic air defense weapons in the eight military bases. Although there were only eight military bases, this kind of cosmic air defense weapon was enough to form an interweaving network in the Earth’s stratosphere.

The third line of defense was also the last line of defense for humans, which was the armored soldiers.

This was the worst-case scenario. If the first two lines of defense could not stop the aircraft from landing on Earth, the remaining things would have to be done by armored soldiers to defend the peace on Earth.

In the next two days, the various countries felt like years.

The leaders of the various countries stared at the screen closely, watching the movements of the four alien spacecraft.

On the Luan platform, Combat Wolf had already been urgently transferred back and became the commander-in-chief of the defense again. This time, he could still see the faces of some foreigners on the Luan platform. They were also wearing armor and had been integrated into the defense team.

When facing a common enemy, the various countries no longer hid their selfish motives. After all, if they could not even protect Earth, their national sovereignty would be even more of a joke.

Moreover, in the past three years, everyone’s efforts were obvious to all countries. They provided technical personnel to help countries develop. In just three years, countries’ technology levels had made a qualitative leap.

Great Xia did not hold back at all. It also made many countries sincerely submit and establish an inseparable cooperation with everyone. Therefore, there were many elite soldiers sent by the countries in the defense team on the Phoenix Platform.

Just like how there would be soldiers of the Great Xia Kingdom stationed on the other two platforms, it was no longer the time to divide countries. Instead, it was the first direct confrontation between Earth and other galactic civilizations.

Finally, two days later, in the wee hours of the morning, as urgent alarms sounded in the command room of the joint attack of the various countries, and red alarm lights flashed for a short period of time, what was supposed to come finally came.

Four spacecraft appeared in front of the Luan Platform. At this moment, they had already arrived above Earth. What made everyone pay more attention was that these four aircraft suddenly stopped in the air. This technology was still impossible for Earth to master at the moment.

The smaller aircraft quickly rose and was protected in the middle by the other three aircraft. The four aircraft stopped calmly and faced the Luan Platform. Looking at this scene through the big screen, Zhang Keqi quickly ordered the technician beside him, “Mobilize the Sky Brain Satellite and test these four spacecraft.”

The technicians quickly began to control the Sky Brain Satellite. On the Luan platform, more than 30 mecha teams formed by the Door God series of mechas walked to the platform with heavy footsteps and looked up at the four cosmic flying machines in front of them.