Regarding the request made by Xin'an City, after some bargaining on the side of the Tianhai Alliance, it quickly agreed.

After all, if it can be resolved through negotiations, they still don't want to start a war with Xin'an City for the time being, at least for now.

When they annexed Gufeng City and Gulan City before, they suffered a lot of losses, especially in terms of main battle tanks, which had grown from more than 500 to less than 400 now, which reduced their combat effectiveness a lot.

And the current Xin'an City is no longer the previous Xin'an City, with two divisions of troops, plus a large number of main battle tanks, if it really fights, it is inevitable to lose troops.

When the time comes, it is impossible to say whether there will be other bases that will target them.

It is precisely because of these considerations that they proposed such cooperation, and according to their investigation in Xin'an City, the other party did not have the technology to manufacture main battle tanks.

Therefore, with the cooperation, the difference in strength between the two of them will become bigger and bigger, and as long as there is a suitable time, Xin'an City can be annexed at any time.

It can be said that when Ye Feng got the cooperation between the two sides again, he was secretly relieved in his heart, so that his plan could continue to be implemented.

Moreover, the evolutionary meat obtained from the Tianhai Alliance can also make his strength skyrocket again.

You must know that the soldiers in the base are not able to have evolved meat for refining every day, especially now, among the more than 20,000 soldiers, there are more than 15,000 of them, all of whom are evolutionaries.

In other words, just these people, the consumption of tens of thousands of pieces of evolved meat in a day is definitely not something that ordinary bases can bear.

Because of this, the price of Evolution Meat for sale has always been high, and ordinary soldiers cannot buy it every day unless they fight desperately and accumulate meritorious deeds.

And now, if a main battle tank can sell 6,000 pieces of evolutionary meat, and make 10 units a day, then here is 60,000 pieces of evolutionary meat, and even after excluding the cost, the net profit is 40,000 pieces of evolutionary meat.

If converted into second-order evolution meat, there are also 8,000 pieces, and with this amount of evolution meat in the account, Ye Feng will be able to let go of the ratio of merit points to evolution meat exchange, so that these soldiers can take evolution meat every day to improve their strength.

It can be said that this transaction with the Tianhai Alliance is absolutely beneficial and harmless. This can also allow Ye Feng to concentrate on dealing with this corpse tide.

......

In the blink of an eye, another two days passed, and as time passed, the corpse tide became more and more dense.

And in the past two days, there is no need for Ye Feng to send people to reconnoitre, because as long as he stands on the city wall, he can see the zombie group wandering in the distance.

This group of zombies is not only the zombies that humans have turned into, but also the zombies that have become animals that make people feel creepy.

Even a docile rabbit can become furious after turning into a zombie rabbit, and its sharp fangs can easily pierce trees.

It is no exaggeration to say that in such a situation, everyone feels an unprecedented crisis.

Even the mercenary group, which usually likes to take risks, has been very low-key in the past two days, and they dare not go out at all, and the uneasy mood spreads in everyone's heart.

If it weren't for the fact that the defense facilities were increasing every day, I am afraid that many people would have collapsed under such tremendous pressure.

The main thing that everyone is most concerned about is when the zombie tide will launch a general attack.

And the corpse tide didn't make them wait too long, on the evening of this day, that is, the fifth day when Ye Feng ordered the construction of fortifications, in the dense forest east of the base of Xin'an City, dense zombies roared and rushed towards the base.

The zombies were so dense that it was like a black flood, and the scalp was numb to see.

In the base, a piercing alarm suddenly sounded, and the soldiers in both the main base and the outpost were urgently mobilized.

And the soldiers who were originally standing guard on the city wall rushed to the machine gun placed on the city wall as soon as possible, and opened the safety to aim.

"That's ...... Zombie rats? An observer with a telescope in his hand, looking at the tide of corpses rushing in the distance, said with some uncertainty.

The other took the binoculars and glanced into the distance, and the largest number of corpses in this wave was a creature similar to a mouse.

It's just that the size of this zombie mouse is enough to compare with a normal domestic cat, and the front and back claws are a foot long.

"It's supposed to be a mouse! After humans become zombies, they can appear dead claws, hate these kinds of mutant zombies, these rats have changed in size, it's not surprising, you look at the strange snake over there, there are actually two heads. The soldier next to him looked around and spoke.

"I said, you two, can you not be so boring. Instead of having time to say this, it is better to debug the gun in your hand and not drop the chain at the critical moment. Beside the two soldiers, the squad leader reprimanded.

Hearing the squad leader's reprimand, the two immediately retracted their gaze and did their job.

And the soldiers in the rest of the directions were the same, although the other day, everyone felt very depressed, and they couldn't avoid fear in their hearts.

But when the corpse tide really broke out, these soldiers became much more indifferent, and even had the mood to discuss these never-before-seen mutant zombies with relish.

This may be the state of mind that has been trained through one battle after another, and when you are really facing a crisis, you can face it calmly.

Groups of soldiers, under the command of the officer, climbed the city wall in an orderly manner, and soon the number of soldiers on the wall of the main base exceeded 5,000 people.

At this time, Ye Feng, Peng De and other high-level officials also climbed the city wall one after another, looking at the dense corpses outside the city wall, they couldn't help but gasp.

"Everything that should be prepared should be ready!" Ye Feng asked.

At this moment, even if he had seen such a big scene in his previous life, he couldn't help but be a little nervous in his heart, after all, he was just leading a mercenary group in his previous life, even if the corpse tide really broke the city, he could take advantage of the chaos to escape with his men.

But now that he is the marshal of Xin'an City, he has to be responsible for the more than 200,000 people here, and it can be said that the burden on his shoulders is many times heavier.

"It's all according to your requirements, and it's ready." Pender nodded.

Looking at the surging tide of corpses, he was also secretly glad that they had an existence like Ye Feng in Xin'an City. Every time he faced a huge crisis, Ye Feng was not only able to anticipate the enemy prophet, but also let them make the best deployment in advance.

If this corpse tide, they are not fully prepared in advance, I am afraid it will be really dangerous.