After a period of time, as the expeditionary army completely lost its trace of the Zerg, the dominance of this war was gradually transferred from the expeditionary army to the Zerg's hands.

The Zerg side should have discovered that they are building a defensive facility on the periphery of the universe, preparing to form a line of defense.

Of course, the expeditionary army did not intend to hide it. It is totally unrealistic to hide the border defense fortifications, such a huge project.

Under this premise, it is obviously impossible for the other party to let them start this large-scale project so leisurely.

Not surprisingly, Zerg’s harassment troops soon attacked.

After the harassing troop approached a certain distance, needless to say, a signal, the troop ambushing in the surrounding void, lifted their mimicry camouflage one after another, and besieged them.

In that battle, it was straightforward to make the harassing troops who attacked come back and forth!

However, as an old opponent who has fought for so many years, just like the generals of the expeditionary army know Balsa, Balsa already knows their methods very well.

Almost at the same time when the opposing soldiers appeared in ambush, along with the violent spatial fluctuations, the huge centipedes quickly drilled out of the spatial cracks.

It is a strategic unit from the Void Zerg, Void Centipede!

The Zerg’s purpose is very obvious, that is, to destroy the defensive facilities under construction on the expeditionary side, and to curb their move to deploy the line of defense.

The destructive power of the Void Centipede to this type of facility is amazing.

Basically, as long as it successfully protrudes its face, the huge body will be swept away, and the defensive facility under construction will surely be turned into a piece of wreckage.

And this time, in order to achieve his goal, Balsa apparently sent a heavy army.

While a large number of Void Centipedes appeared, larger-scale assault troops also swept from the Void from the outside.

At that moment, on the expeditionary side, the external defense line alarm that was under construction was masterpiece.

At the critical moment, Dominic Adolf hurriedly ordered the mobile fortress of their Dark Iron Empire to go up as fast as possible.

Relying on the connection between the fortress and the fortress, a temporary line of defense is formed. While protecting the defensive facilities under construction, the fortress firepower is used to suppress the swept insects.

From the perspective of loss, with such a long distance from the rear, even if it is efficiently moved with the help of a fixed space door, it will take a lot of time for each batch of large-scale defense equipment to be transported here. And manpower and material resources.

If this causes the void centipede on the opposite side to be twisted two or three times, then their loss will be great.

From a strategic point of view, building a line of defense on the periphery of this universe is of great strategic significance for their expeditionary forces.

It is no exaggeration to say that as long as this line of defense can be built, their expeditionary force will be able to gain a firm foothold here and become their greatest confidence in frontline operations!

Therefore, even if they pay more at this stage, they have to stop the Zergs and destroy their defense projects.

Of course, having said that, the actual implementation is not as easy as said.

After all, this is really moving, not just them...

One offense and one defense, a new round of battle between the two armies quickly started.

In this process, as the top combat power of the Void Zerg, Belmont did not show up on the battlefield.

Correspondingly, Xu Yu did not show up on the expeditionary side.

In the previous long battles, Xu Yu and Bei Meng played a handful of times, and they were generally concentrated in the early stages.

In the middle and late stages, the top combat power on both sides basically entered a state of'the enemy is not moving, I'm not moving', forming a kind of subtle checks and balances.

In the tactical meeting on this matter, Xu Yu believed that his strength was higher than that of Beimen, but he would have to spend some time to kill the opponent.

Under this premise, if the two sides are fighting, if Xu Yu takes the first step, then the other side can directly ask Belmont to avoid Xu Yu and attack the troops on the other end.

Xu Yu herself is not good at body speed. Before she arrived, according to the strength of Beimen, she might have been able to cause enough damage to their expeditionary force, and then burst out and went away.

Under this premise, the expeditionary army has not thought about asking the Yanhuang Empire to send top combat power over.

However, their request is somewhat overwhelming.

The four gods of the Yanhuang Empire, also known as the four gods of the country, can be seen from this title, the main responsibility of the four gods is to "zhen the country", with guarding the country and protecting the country’s security as the first priority. It will not be easily dispatched for expedition.

The strength of the four gods must be combined with their unique four corresponding terrain formations in the Yanhuang Empire to achieve 100% play. Once they set off, their strength will be limited to a certain extent. uukanshu.com is also one of the reasons.

This time, I was willing to send Nanhuang Jun Xu Yu to the expedition. On the one hand, Xu Yu took the initiative to invite Ying, and on the other hand, it was also for the sake of the Ye's Chamber of Commerce. Taking into account the relationship between them, it gave Tianda a lot of face.

Furthermore, even if the Yanhuang Empire is willing to send more combat power, who can guarantee that there is no other side?

Since there is a Belmond on the opposite side, there is a good chance that there will be a second one.

They obviously couldn't figure out how many top combat power each other had.

So, this finally formed a situation where no one dared to act rashly...

This wave of attacks, Baltha's main purpose was to destroy their fortifications, and did not intend to be here directly and smash them.

After fighting for a while, the Zerg army retreated in an orderly manner.

From this point, the expeditionary force can also roughly guess that the opponent's follow-up reinforcements may not have reached the front line yet.

Assuming the reinforcements have arrived, what else can the opposing commander wait for? It is normal to directly push the army up.

Only before the reinforcements arrive, the other side will use this small-band harassment to interfere and slow down their deployment of the defense line.

It turns out that they guessed right, and the Zerg side unsurprisingly chose the small-band harassment tactics.

But even in the case of guessing the action of the other party, they have to admit that such methods are not afraid of being guessed or seen through.

Because no matter what you do, the other party's purpose of interference has already been achieved.

And the facts are indeed the case. The actions of the Zerg have really interfered with them, and the efficiency of their defense facilities has been greatly slowed down. At the same time, the casualties on this side of the battlefield have also been consecutively recently. The attacks continue to increase...