Sleeping itself is to escape time, and it is for this reason that Liu Xuan and the four of them have fallen into a deep sleep many times, and for them, appearing in the right time is the most important thing.

They can fall into a deep sleep, the Federation really can't, and they've been waiting, waiting for the last alien fleet to come. They are also always ready for war, and the new branch of the Space Force is also born and grown very quickly.

Liu Xuan's contact with Ringer and others was just one of the most primitive units of the space army, and with the development of science and technology and the development and use of interstellar warships, the scale of the space force was further expanded.

Most importantly, the Earth's own defense system is gradually being established, in other words, the Earth's protective shield is also gradually formed. The only bad thing is that the form of protection of the planet is proactive, not passive. To put it simply, when the attack comes, the earth's defense system needs a certain amount of time to build, rather than directly forming a protective shield automatically, and the current human level has not yet reached that powerful level.

Various planetary-class warships have been put into use, huge air fortresses, and air command have also been established. Above Earth, the Guardian is still in service, and in addition to adding a lot of attack methods, it is also a port of call for the second time with a new starship. Ringer was still the commander.

The real Flying Fortress, the Commander, operates in lunar orbit, which is also a last resort to prevent the Earth from being attacked and the command paralyzed. The main function of the Commander is to command various starships and deploy various resources.

There is also a fortress in the orbit of Mars, called the Guard, Mars is the closest planet to the asteroid belt, which is also set up to intercept the enemy at the first time, it is worth mentioning that the Guard is a real unmanned fortress, there is no staff on it, all are remotely controlled, and more importantly, the Guard is almost a pure attack weapon, and no other facilities exist.

The Federation has also invested heavily in weapons, and has learned the lessons of Starfall, and the Federation has also developed a missile with a rock as the main body, you know, if this is in a peaceful era, it is estimated that it will be killed by laughter, with the rock as the main body, is it to kill people with stones after the bomb explodes?

Other facilities are also being built at an accelerated pace, such as the cultivation system, where most of the lunar base has been transferred to the Commander, and the rest of the facilities have been modified for cultivation. After all, there are too many people in space now, and it is very expensive and energy-consuming to transport them from the earth, so local materials are the best choice.

The earth has also made great changes, many air defense systems have also been established, and the scale of the bomb shelter has been further expanded, and the current size of the bomb shelter is enough to protect all the people of the Federation.

There is also one of the most powerful bomb shelters to date under the Federation Building, and many important systems of the Federation are gradually moving underground, after all, the most important thing is the command of the Federation.

Time passes little by little, the Federation is in full swing of preparations, and time flies quickly, a few years pass in the blink of an eye.

Soon, the estimated time has also arrived, but people are also surprised to find that the space fleet they have been preventing for several years is gone, in order to prevent their arrival, the Federation has already adjusted the probes, and all the probes of Uranus and Neptune are aimed at the Kuiper belt, if the alien fleet comes, they will know it as soon as possible.

After passing the Kuiper belt, that is, to the core of the solar system, when you arrive at this place, you can already attack, and the technological level of human beings can already fight in the solar system.

The alien fleet is gone, and they have no way, according to the calculated time, it should be seven years to reach the solar system, but now that eight years have passed, there is still nothing to do in the core of the solar system, as if this alien fleet suddenly disappeared.

People were helpless, but with the awakening of their memories, they also remembered that there were four bigwigs sleeping inside the Transwarp Company. For eight years, they have been waiting for the moment when the alien fleet will come.

The Federal Assembly also immediately sent a commissioner to the Star Ring Company to wake up the four people.

Liu Xuan and the four of them were awakened in a daze, and their first reaction when they woke up was that the alien fleet had come, but the commissioner told them that the Federation had not found a trace of the alien fleet so far. Liu Xuan was already stunned at that time.

It's been a full eight years, and even if there are some unexpected signs, the alien fleet should have arrived a long time ago, but why hasn't it arrived now? This amazed everyone.

Liu Xuan didn't say a word, he just rushed over to his fourth floor, he wanted to see the news obtained by his probe for the first time, that is, the result of the detection of the Neptune probe, Liu Xuan had already pointed all the sensors of the probe at the Kuiper belt before he fell asleep.

According to the results of the calculation, Liu Xuan's supercomputer has already stored the video data of those days and the detection data of other detectors. Without saying a word, Liu Xuan directly started his own research, and when his three companions were still sober, Liu Xuan devoted himself to his own research again.

This time, the commissioner did not leave, it seems that the federation also wants to know Liu Xuan's research results for the first time, Liu Xuan's three partners on the first floor are all entertaining the commissioner, and Liu Xuan is studying alone on the fourth floor.

All the information has been watched, nothing has been found, in fact, the only thing I haven't seen is the natural light video taken by the camera, because the time of this video is too long.

At that time, the estimated arrival time was between three days, which means that these videos have a full three days, and it is not possible to watch them in a while and a half, but this is the last resort.

When all high-tech means are useless, returning to the primitive is the best way.

Liu Xuan didn't watch it for the first time, but left his place and walked towards the first floor.

He didn't pay attention to the commissioner at all, and when he arrived on the first floor, he directly said something to the three of them about preparing food, and then went back to the fourth floor directly. All he has to do is watch the videos little by little!