The slag star is not large, with a radius of less than three thousand kilometers.

After two hundred years of unbridled frenzied mining, Slag Star has been almost hollowed out like a giant hornet's nest. Because it was abandoned before the resource was completely depleted, no one knew about the internal structure of the slag star, and no one knew how many caverns there were leading to the core. Only one thing is for sure, there are plenty of caverns on Slag Star that are large enough for a small warship like the Shadow Ship to pass through.

Originally, in order to obtain valuable resources, miners used giant drilling equipment to drill many holes on the slag star that led directly to the star core, and as the speed of resource extraction accelerated, there were more and more such holes. Because the mineral deposits are not evenly distributed, the mine cave does not go straight down, but winds and turns. After the minerals in the veins were excavated, the caves were connected to each other, forming a huge underground labyrinth.

However, these caves also play a certain role in protection.

The main thing is that during the mining process, the miners strengthened the mine to withstand the enormous pressure inside the planet for safety. Otherwise, the structural defects created by the caverns that dot the interior of the slag star would have caused the slag to collapse long ago.

Of course, these caverns are large enough for the Shadow Ship to enter and exit at will.

After traveling through the mine for more than ten minutes, the "Xinghai" slowed down.

This time, Yang Yi did not let the ten Shadow Ships act together, but separately searched for the mine cave that entered the interior of the Slag Star, and then rendezvous inside the Slag Star. Of course, Yang Yi also clearly told the other female warriors and officers on the Shadow Ship that if the situation was different from what he expected, they would flee separately.

In the command module, a huge diagram of the internal structure of the planet is gradually being improved.

At the time of entering the Slag Star, including the "Star Ocean". Each of the ten Shadow Ships has released small detection equipment, mainly to figure out the internal structure of the Slag Star. In any case, it takes a huge space to settle twenty legions, and for twenty legions to fight. Even if Yang Yi's judgment was correct, the Lei Ling Clan's fleet would build an advance base on the Slag Star after it arrived, and it would also be stationed on the ground. Doesn't go deep into the interior of the Slag Star. The reason is very simple, the main value of this forward base is to support the fleet, and there are many large warships in the Lei Ling fleet, and they can't enter the interior of the slag star, so they can only build the base on the surface of the planet.

In fact, this is the most critical prerequisite for Yang Yi's battle plan.

To put it simply, as long as the Lei Ling Clan Legion that accompanied the fleet was stationed in the Slag Star, the battle plan, or idea, formulated by Yang Yi could become a reality.

If the Thunderling Legion doesn't enter the Slag Star. Then Yang Yi's idea is just an idea.

That is, as long as Yang Yi and them are found to be hiding in the Slag Star, the Wanluo War Emperor will definitely destroy the Slag Star, and even destroy the entire Zag Galaxy.

As for the construction of an advance base on the Slag Star, it is obviously impossible.

Of course, as long as it is not discovered by the Lei Ling Clan's fleet, as long as the Wanluo War Emperor thinks that the Slag Star is valuable, as long as he builds an advance base here. Everything is easy to say.

In any case, it was obviously impossible for the Wanluo War Emperor to order the destruction of the Lei Ling clan's legions.

Exactly. Yang Yi decided to hide first, and hide in the slag star. When the Lei Ling fleet arrives and sends the legions to build an advance base on the slag star, the twenty legions brought by Yang Yi will be useful. When the time comes, when the battle with the Lei Ling Clan Legion is fought, everyone will be on the Slag Star. No matter how ruthless the Wanluo War Emperor is, it is impossible to order the destruction of the Slag Star, and he will only use all his strength to destroy the enemies on the Slag Star, and it will take a lot of time. Because the rear is unstable and there is no reliable base for forwarding. Therefore, even if the capital ship is difficult to come in handy, the Wanluo War Emperor may not send the fleet away. Besides, Yang Yi has ten Shadow Ships in his hands, which can make the Wanluo War Emperor throw a rat trap. To put it simply, in the case of a threat to the ground legions, the Wanluo War Emperor will inevitably leave the fleet behind. Only after Yang Yi and the others were eliminated, or the legions that had been thrown into the Slag Star were withdrawn, it was possible for the Wanluo War Emperor to send the fleet to other battlefields.

Obviously, as long as Yang Yi and the others entangle the Lei Ling clan's legion, as long as they persist, they can achieve the goal of containing the Lei Ling clan's fleet.

Of course, the prerequisite for all this is that the Wanluo War Emperor decides to build an advance base on the Slag Star.

In this regard, Yang Yi was not very worried.

That is, in this vicinity, at least a few dozen light-years away, the Zag system is the only borderland, and Slag Star is notorious.

If you want to hide a large fleet around here, the Zag system is the ideal choice.

Although with the advanced technology of the Lei Ling Clan, there are ways to hide a fleet, such as keeping the fleet in a space channel that can be maintained for a long time, but in order to prepare the fleet for battle, as well as complete other pre-war preparations, it is necessary to set up an advance base. To put it simply, the fleet must be brought back into space, and a place where the fleet can be hidden, preferably a star system that no one cares about.

Without a doubt, the Zag system is the most ideal choice.

In fact, it was precisely with this in mind that Yang Yi and the others came to the Zag Galaxy through space jumps, instead of going to the nearby star system.

Of course, others think so, too.

From another point of view, if it was Yang Yi who commanded the Lei Ling fleet, he would also choose to set up camp in the Zag system.

In addition, the small reconnaissance ship can also prove Yang Yi's judgment. If the Zag system was not important, if there was no intention of coming to camp here, there would be no reason for the Wanluo War Emperor to send a small reconnaissance ship here to stand by. As for why there was only one and did not send more small reconnaissance ships over, maybe it was because Wanluo Zhanhuang was too confident, or it could be related to the fact that he was not clear about the situation, that is, he did not know Yang Yi's whereabouts. You must know that if it weren't for the timely discovery of the signal sent by the small reconnaissance ship, and the absence of Otis, the female warrior guard captain with a super space fighter, Yang Yi and they would have been discovered, and the reconnaissance ship would definitely be able to send out the signal in time.

Besides, in the entire Southern Alpha Galaxy, except for Yang Yi, who would take the initiative to attack the reconnaissance ship of the Lei Ling Clan?

It's a time of war, and the Thundering Clan is the most powerful top-level civilization in the Galactic Alliance, and it's impossible for a small reconnaissance ship to act alone from the fleet. Not to mention the warships of other civilizations, even daring pirates, they will avoid them after encountering the small reconnaissance ships of the Lei Ling Clan. Taking the initiative to sneak attack the Lei Ling Clan's warship is tantamount to looking for death, and even if you can get away with it, you will definitely not live long.

What really makes Yang Yi uncertain is actually another thing.

This is, will the Wanluo War Emperor build the advance base on the Slag Star.

As already mentioned, the main purpose of building forward bases is to provide support to the fleet, after all, the fleet needs a lot of supplies for operations, and it cannot be carried by combat ships in its entirety. It's tens of thousands of light-years away from the Thunderling Clan's territory, and even if the Thunderling Clan has enough transport ships, there is no guarantee that they will provide all the resources for the fleet. The safest thing to do is to set up a base in front of the line to stock up on the supplies that the fleet needs to fight.

In addition, the forward base can also be used as a military fortress, i.e. as a fleet support point.

The problem is that if it is only to support the fleet operation, then it is entirely possible that the forward base will be located in outer space, that is, a space fortress.

Don't forget, most capital ships don't have the ability to fly in the atmosphere.

Although there are not many asteroids and other celestial bodies in the Zag system, and there are no moons in the Slag Star, with the technical strength of the Lei Ling Clan, it is not difficult to cobble together a space fortress with warships. If a plan has already been made, then Wanluo Zhanhuang is prepared. A Space Fortress cobbled together with warships or ships will not be very strong and will have limited functionality, but it will be enough to support a fleet for a short period of time.

So, is it a ground base or a space fortress?

Yang Yi couldn't guess, but he thought of the key factors that determined this issue.

That is, the Wanluo War Emperor will decide what kind of forward base to build according to the battlefield situation, to be precise, the battle to be carried out by the Lei Ling Clan's fleet.

To put it simply, if it is just a battle, and there is no suspense, then there is obviously no reason for the Wanluo War Emperor to make a big move, and a small space fortress that can provide supply and maintenance for the battleship is enough. Even if you want to build a forward base, it is not here, but in a star system in North 4, or even a home galaxy. After all, after destroying the Weaver Clan Legion, the Lei Ling Clan fleet commanded by Wanluo War Emperor will be the first to reach the North Fourth Region and the only reinforcement that can save the Human Federation. If the opposite is true, the Thunder Clan fleet is facing a vicious battle with an uncertain outcome, and it is likely to last for a long time, all that is needed is a fully functional forward base, and in the Zag system, only the Slag Star can build such a base.

Obviously, Yang Yi definitely doesn't want to fight a battle that he is not sure of.

For this reason, after making a decision and persuading Shen Chengwen and Otis and the others, Yang Yi contacted the Star Soul Empress, to be precise, sent the situation on their side, and implored the Star Soul Empress to launch an attack in the near future to show the combat effectiveness of the Star Weaver Clan's legion.

If the Wanluo War Emperor thought that the Star Weaver Clan legion led by the Star Soul Empress was strong enough to be defeated in one fell swoop, then he would inevitably make a long-term plan.

Of course, what kind of result will be, Yang Yi does not know.

In the past, Yang Yi always believed that a commander was actually to make a plan, and then let his subordinates implement the plan, and it was very easy to command the army to fight.

Obviously, Yang Yi will never think so again.

Making a plan is still a trivial matter, the key is pre-war judgment. What made Yang Yi feel even more tormented was that even if he formulated a perfect plan, whether it could be turned into a victory in the end was not up to him, and it depended on the enemy's actions. That is, he could not grasp the direction of the development of the war situation.

This kind of uncontrollable situation, which can be said to be resigned to fate, makes Yang Yi very crazy, but helpless.

Of course, this was the first time he had fought as a commander, and it was normal for him to feel helpless, dazed, and worried. (To be continued.) )