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Fast forward to May.

At this time, the green seedlings in the farmland of the Iron Castle are already lush and growing happily.

In terms of army building, the 1st and 2nd Field Brigades, the Fire Support Brigade, and the Special Operations Battalion (at this time, the special operations unit of the Self-Rescue Army has been expanded from the original brigade to a battalion, with more than 120 people in one sniper brigade and more than 360 people in three special operations brigades), and the artillery brigade has all completed mechanization transformation, and all personnel are equipped with armored combat vehicles.

It includes hunting dog fighting vehicles, armored vehicles, extended armored personnel carriers (which can transport 36 people in one platoon at a time), armored transport vehicles, armored engineering vehicles, etc. It can be said that it has been armed to the teeth, and even the field cooking vehicles of the cooking squad are armored.

The number of artillery units and long-range artillery pieces has exceeded 270, and the effect of real carpet fire coverage has taken shape.

The number of tanks has reached more than 700!

Even during World War II, the most intense war in the past, a force of more than 700 tanks was definitely huge. It was more than enough to form a tank army.

But now, in the Steel Fort, so many tanks put together, it is only a full tank brigade of 552 tanks and a new tank regiment of 167 tanks.

Because the head of the group army is a general, and at present, the highest military rank in the self-help army is only lieutenant general, Xu Kai, Wei Chen, and Zhang Zeshan are still major generals or brigadier generals! If the military rank is not enough, it can't be forcibly promoted, right? Others are not convinced. The qualifications of the brigade commander of the tank brigade are not as deep as Zhang Zeshan!

Second, in fact, it is also to ensure the combat effectiveness of tank troops.

Due to the appearance of spirit flesh, whether it is human infantry or zombies, the combat effectiveness has been greatly improved. A giant corpse can single-handedly take on a tank, and with the attack speed of a tank, it can't even hit a human-enhanced soldier moving at high speed.

In contrast, the tank has become technical, but its combat effectiveness has regressed.

Therefore, the tank force must ensure a certain number, and crushing everything with a torrent of steel is the king.

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In addition to the military aspect, the Steel Fort has also made great progress in infrastructure construction and scientific research.

In short, everything seems to be moving in a good direction.

But under such circumstances, in mid-May, the Corpse King Legion in Qiha City in the south began to get restless!

On May 17th, Chen Yuan received a report that the zombies in the extreme surroundings of Qiha City began to show signs of abnormal activity, and the zombies in the city, surrounding towns, and villages were scurrying around, like crazy!

However, it did not cross the line and was a secondary alarm.

(With the center of Qiha City as a round point, with a radius of 50 kilometers, the Self-Rescue Army drew a cordon to the corpse king army in Qiha City, as long as it does not go out of this circle, it is only a secondary alarm.) Crossing the line to the north is Level 3 alert, 50 km further north is Level 2 alert, and 50 km further north is Level 1 alert. Because the Iron Castle is 270 kilometers away from Qiha City, more than 150 kilometers, it has reached the range of the zombie-free area painted by the Steel Castle today. ）

Even so, Chen Yuan knew that trouble might be coming soon.

Because according to the experience of the previous life, he knew that this corpse king in Qiha City was conducting a thorough investigation of the situation in its sphere of influence. The so-called how can it sweep the world without sweeping a house, this is a signal that it is ready for war.

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Really! In late May, Chen Yuan received another report. The corpse king army in the city of Qiha has crossed the 50-kilometer cordon and began to sweep around the city of Qiha within a range of 50-100 kilometers. The War Alert was raised to Level 3.

And in the meantime. In total, the Corpse King Legion has breached two large survivor settlements with populations of more than 10,000 people in this area, and more than a dozen small and medium-sized survivor settlements with populations ranging from a few hundred to thousands.

In fact, the people in these settlements had been alerted by the Iron Castle in advance.

But people didn't believe it at first!

They always line up people to scout first, but when they find out that it's true, it's too late.

The Corpse King Legion attacked a settlement of this size, and they didn't even bring siege equipment at all! Running at full speed, at a speed of 50 kilometers per hour, can you outrun others?

By the time the scouts came back panting, the zombies were almost behind their butts! (Not every settlement has such advanced communications equipment.) It's too late to run!

And it's true that the Corpse King Legion is moving too fast. They were divided into 7 routes, with 1 as the main force, led by the corpse king himself, to attack large settlements. The other 6 roads were led by 6 corpse generals, and they attacked those small and medium-sized settlements separately. Several settlements can be swept at the same time.

As a result, only a small fraction of the human survivor settlements in this area have escaped.

Even the oil city has been affected.

The Oil City and the New City of the Oil City are within 100 kilometers of the city of Qiha.

Fortunately, most of the people in the oil city have now moved to the new city of Lianhuan Lake.

Coupled with the timely notice of the Iron Castle, the workers who remained in the oil city also retreated to the new city in advance, so there was no great loss of personnel. Only some of the equipment was damaged, but the impact was not very large.

As for the new city of Oil City, what made everyone laugh was that the zombies had no way to get under their city at all!

The reason for this is, on the one hand, because the new city of oil city is in the depths of the lake. Nowadays, there are many survivor settlements in the Lianhuan Lake, which have built fortresses in imitation of the new city of Oil City, and they are like the stars and the moon, protecting the new city of Oil City in it. Moreover, these forts are also very easy to defend and difficult to attack.

When the zombie army arrives here, these outlying settlements will help Oil City stop the zombies.

Of course, Oil City and other settlements that were not attacked also actively sent troops to support them. Among them was the 4th Independent Garrison Regiment of the Iron Fort, which was stationed in the new city of Oil City, and was equipped with new weapons. (20% of the industry here is a steel castle.) ）

Under the facilitation of Chen Yuan, a close alliance has been formed in the various settlements in today's Lianhuan Lake. After all, they are all in one area, and everyone still understands it.

Second, on the other hand, I would like to thank Wang Luchuan and them.

After the people of Wangjiabao joined the Iron Castle, it was not just as simple as bringing a new force to the troops of the Iron Castle.

The Wang family has been muttering in the formation for thousands of years, and many of the things in it are of great use to the Iron Castle.

For example, Wang Luchuan, they have now begun to arrange hidden formations for the Steel Castle. Although there are many things involved, such as plants, lakes, and even large areas of reflective glass, it will take at least several years to complete.

But the chain lake is a special place.

After Wang Luchuan's preliminary investigation, this turned out to be an excellent place to arrange the Lost Trace Formation. As long as it is slightly transformed, it can form an almost natural maze array, making it difficult for zombies to get to the new city of Oil City.

As a result, the Lianhuanhu area has become the place with the largest number of human settlements within 50-100 kilometers from Qiha City......

(End of chapter)