The fleet wandered in the Oort Cloud for more than half a month, during which time it constantly searched for the whereabouts of the Outer Skeletons, but the limited number of discoveries only captured a small group of enemy troops, and all of them were ground troops, and the Outer Skeleton Men spaceships disappeared as if they had all disappeared.

From beginning to end, the commando team never had a chance to play except for a soy sauce fight in Sedna, and was completely marginalized. Most of the team members have been frozen in batches for half a month, leaving only a small number of them to act as guards.

Under Wang Wei's strict orders, the fleet implemented a 24-hour uninterrupted duty system, and the optical imaging system searched the starry sky without interruption, but the results were really unsatisfactory.

The main area of human activity is concentrated in the inner solar system, and it can be said that the airspace after crossing the asteroid belt is all uninhabited, and the further out, the more unexplored pristine airspace there is.

The Oort Cloud, which is far away from the Ikober Belt, is simply a wild place in the minds of human beings, not to mention a fleet, even if all the human spaceships are pulled out, running all over the Oort Cloud is not a task that can be completed in three or five years.

The disappointed Wang Wei had a sense of surprise when he punched the cotton, he thought that the Outer Bone People would concentrate in the airspace near Sedna, but he didn't expect that there would be no gain.

Although he was very unwilling, he still conveyed the order to the fleet to return after receiving a communication from headquarters.

The message was simple: the friendly forces of the United States and Russia had completed their mission of eliminating the exoskeletons entrenched in Orisa and Haumea. According to intelligence, there are also remnants of exoskeletons on the planet, and the U.S. fleet is on its way to the planet.

Due to the location of the mission area, only the target of the American fleet was closer to Eris, and this task naturally fell to the Yankees.

Although the United States and Russia had strongly demanded that the Chinese side complete this task in the plan before the start of the battle, Sedna was too far away, and if it was handed over to the fleets of the United States and Russia, I was afraid that in two months, Sedna might not be able to touch Sedna's tail.

In the end, the Americans could only touch their noses and admit it.

The fleet that had completed the set task began to return, and at the same time, seventy-seven giant whale ships were heading towards the outer Neptune region in batches, which was all the giant whale-class warships that had been built so far, enough to form three full fleets and warships with turns, and did not form any fleet, not even a two-ship formation, but a single ship.

Seventy-seven battleships were neither combat nor reconnaissance. Their mission is simple - to reach the outer Neptune region and deploy long-range early warning satellites according to the predetermined plan!

This is part of the solar system early warning network plan, this plan is one of the plans put on the agenda after Mars was attacked by the aliens, the core of the plan is to use artificial nuclear power early warning satellites to arrange a complete set of early warning network throughout the solar system to prevent the recurrence of Martian events.

The plan is divided into three parts, one is the long-range early warning network, that is, the satellite network arranged outside the orbit of Neptune, its basic function is to scientifically arrange the satellite position through detailed calculations, so that the long-range early warning network can detect the enemy's actions before the enemy fleet enters the orbit of Neptune.

Such an early warning goal is not difficult to achieve.

The second is a medium-range early warning network from Neptune's orbit to the asteroid belt, whose goal is to be able to detect the enemy's general movement and approximate position after the enemy forces break into Neptune's orbit, with an error of no more than 10 light seconds.

The third is the short-range defense network within the asteroid belt, which is also the most demanding part of the three early warning networks, which requires that it must be able to monitor all flight features in the entire area in real time, provide detailed information on its position and speed, and the error does not exceed one lightsecond.

The short-range defense network is the easiest part, because China, the United States, and Russia have all placed reconnaissance and early warning satellites in the inner solar system, and now they only need to link the satellites of the three countries to each other and add some satellites to the empty space.

Once the early warning network is complete, all the space in Neptune's orbit, including part of the outer Neptune region, can be placed under the monitoring of the early warning network, and most of the objectives in the solar system can be monitored, and the closer to Earth and Mars, the higher the monitoring intensity.

This plan is one of the constituent plans of the coalition forces' key defense strategy.

After all, the number of human warships is really small, and if the troops are divided, it will only weaken the military strength of the human race, and it is a taboo for soldiers. On the contrary, if we can grasp the movements and strength of the enemy's forces, we can make timely adjustments, concentrate the Allied fleet, give full play to the advantage of the high attack power of the human fleet, and artificially create local strategic advantages. to fight against the menacing enemy forces.

Moreover, the three major early warning networks are only the first phase of the plan, after the completion of the basic network "laying", each artificial satellite in the network is an early warning node, all the nodes are linked together, can form an invisible giant network all over the solar system, and put all abnormal situations under monitoring.

However, the army of the Outer Bone Man is getting closer and closer to the solar system, and it is impossible to complete the complete early warning network, and only by first arranging a barely usable early warning network can the initial network construction be completed before the Outer Bone Man arrives in the solar system.

If there is time, the satellites in the network will continue to be enriched and the early warning capabilities of the medium- and long-range networks will be strengthened.

In addition, there is actually a fourth part of this plan, and the content of this part is relatively extraordinary, so it is still in the plan.

As we all know, the solar system is a disk-shaped star system, and all the celestial bodies are located within the plane of the ecliptic, but what is the need for the outer skeleton to break through from the outer Neptune region to the inner solar system in a step-by-step manner? From the perspective of human beings, it is completely possible to jump out of the plane of the ecliptic, adopt an orbit perpendicular to the disk surface, and implement fixed-point assault tactics to directly hit the Earth or Mars.

If we say that within the ecliptic plane, there are more or less several early warning satellites left by the three major space-faring countries, which are beyond the space of the ecliptic plane, and even the three major space-faring countries have never set foot in them.

There is only a void beyond the ecliptic plane, and what fool who is full enough to hold on to it will run out of the ecliptic plane just to look down on the solar system?

Human beings have entered the second type of civilization for more than a century, and there must be many people who dare to think so, but none of them can be found who dare to do so. (PS: The first type of civilization refers to the current state of humanity; The second category refers to the departure of the planets, but not out of the star system; The third category of civilizations refers to civilizations that have the ability to travel interstellarly. This is the contribution of a Russian scientist. ）

In addition to the location of early warning satellites, the detection of optical systems has not been relaxed for a moment, and several major astronomical telescopes have pointed to the dwarf planets approaching the solar system day and night, and have given it a terrifying name: Bone Tomb!