While the garrison troops in the Western Region were clearing out the orcs and training new recruits, they were also surveying the terrain.

To be honest, there is nothing good in this entire tropical savanna, and the further west you go, the more deserted it becomes...

Guo Zhen grabbed a handful of sand and gravel on the ground and rubbed it in his hands. It was very dry and had an obvious grainy texture.

As soon as his hand was loosened, an uncomfortable hot wind blew through, directly blowing away the handful of sand and gravel in Guo Zhen's hand.

He originally came here to clear out a wave of jackals.

However, after the clearing mission was over, Guo Zhen took a look at the map and found that this area further to the west had not yet been explored...

With a mentality of "We're already here, let's explore the terrain again", he led his soldiers to stay in this area for a few more days.

The fox scouts sent out for the reconnaissance mission came back soon. After listening to the report, Guo Zhen frowned directly. Then, a report was quickly sent to Mirror City...

Looking at the latest report sent from the Western Region, Luo Ji's eyebrows clearly showed a few wrinkles.

"I didn't expect that the edge of the Western Territory is connected to a desert..."

In the short term, Luo Ji had no interest in expanding his territory into the desert. Unless he had no other choice, it would be too cost-effective to spend a lot of time building a city in the desert.

He quickly ordered someone to get a map of the civilizations of all realms. Now he had almost figured out the terrain of the southeast, northwest and northwest.

To the east is grassland, to the south is swamp rainforest and the sea, to the west is desert, and to the north is permafrost.

Holding a pen, Luo Ji marked the confirmed terrains one after another, and then with a wave of his hand, he directly circled a large circle, enclosing the entire most fertile Central Plains region at once.

Then while thinking about it, he asked Lu Yang on one side...

"Lu Yang, has the latest progress report of the railway project been sent in? At what stage is it progressing?"

"Reporting to Your Majesty, based on the latest progress and the report from the Engineering Department, all railways marked as important routes within the civilization of all worlds can be completed within three years."

As a project that Luo Ji paid great attention to, Lu Yang, as an assistant officer, naturally followed along all the way, always paying attention to the progress of the project. Now when Luo Ji asked him, Lu Yang also answered fluently.

The progress of this railway project naturally has a priority. Even in the modern world, not every city has trains. Of course, Luo Ji is not naive enough to think that he can handle it all at once.

At present, the important routes with high priority account for almost 20%. After these 20% of the routes are paved, Luo Ji will directly transfer 90% of the workers in the project.

Let's build the remaining railway slowly.

"Sun Liang, a humble minister, comes to see His Majesty!"

The new minister of the Ministry of Construction and Engineering came very quickly. Speaking of which, Sun Liang is already the third minister of the Ministry of Construction and Engineering. The first two ministers have retired.

However, there is no doubt about his ability. Sun Liang has basically been responsible for the construction projects in the past few years.

In order not to disturb Lu Yang and Ye Hua who were handling government affairs in the government hall, Luo Ji took Sun Liang directly to the side hall.

Immediately afterwards, he spread the map on the table, and then said to Sun Liang...

"See the circle?"

"I saw it."

"The area within this circle, I call it the Central Plains, is the richest area of ​​our civilization in all worlds."

Listening to His Majesty the Emperor's explanation, Sun Liang kept nodding his head, appearing very serious, until Luo Ji said those words...

"I want to build a city wall to surround the entire Central Plains."

"..."

"But to be precise, it's not really a city wall. It should be called the Great Wall."

As he spoke, Luo Ji took a picture of the design he had already prepared on the table.

Then he looked up and saw that at this moment, Sun Liang was smiling, his dark eyes were a little distracted, and he was standing there motionless.

"Um, what's going on?"

Luo Ji couldn't help but raise his hand and wave it in front of Sun Liang's eyes, but the other party didn't react at all.

Wang Kai, who was standing on one side, said softly after controlling the twitching of his facial muscles...

"Your Majesty, Minister Sun seems to have lost consciousness."

"..."

After a few minutes of violently pinching people, Sun Liang finally regained consciousness. After coming back to his senses, he asked with a trembling face...

"Your Majesty, are you serious?"

"Do I look like I'm kidding?"

Luo Ji looked innocent.

"Use the entire Central Plains, use it..."

"Great Wall."

"oh."

After Sun Liang responded, his tone of voice rose by at least three decibels.

"Surround the entire Central Plains with the Great Wall?!"

When he said this, Sun Liang's voice was filled with obvious collapse.

Luo Ji, on the other hand, still looked innocent.

"yes."

"..."

Having nothing to say, Sun Liang silently covered his liver. No, his liver hurt. At this moment, the scene when the previous minister handed over the position of minister to him before he retired suddenly appeared in his mind.

At that time, the old minister patted him on the shoulder, with a meaningful smile, and only said two words.

"come on."

At that time, Sun Liang didn't think much about it, he just thought it was the old minister encouraging him. Now thinking about it, coupled with the meaningful smile of the old minister, he suddenly understood, this is what "come on" means?!

What's the point of cheering? It's simply life-threatening!

The Great Wall that surrounded the entire Central Plains? It was definitely more than ten thousand miles long. He didn't even want to think about it!

"Your Majesty, Your Majesty, I dare to ask, why, why did you build this Great Wall?"

Let alone Sun Liang, even in the eyes of others, this approach is incomprehensible.

The emergence of cannons has greatly reduced the value of city walls. At this time, such a huge project is carried out just to build a city wall of low value? What's the point?

Luo Ji became slightly troubled by this. As a super-large gold-level five-star man-made wonder, the Great Wall naturally has its own powerful effects.

The first effect is that the overall combat power of the defending army is increased by 50%, and the default morale is +5.

The second effect is that within the effect range, the recruiting efficiency of your own civilization increases by 50%!

In addition, the Great Wall also has one of the most important characteristics, that is, the scope of its effect will be as large as the area you circle.

In other words, if Luo Ji encircles the Central Plains, the entire Central Plains will be within the scope of the Great Wall!

Just for the sky-exploding effect, Luo Ji had to build the Great Wall.

He even thought about encircling the Central Plains first, and then when the territory continues to expand, when he gets the chance, he will encircle the entire continent. He is simply invincible!

But he couldn't explain this to Sun Liang.

In the end, Luo Ji could only pat Sun Liang on the shoulder and express his sincere words...

"Sun Liang, of course I have my own considerations about this matter."
Chapter completed!