Wei Kang and Wei Buyi were also very angry after hearing this. They looked at Liu Tan silently. Wei Kang originally wanted to ask Liu Tan what to do, but when he turned around, he found that his brother had already started putting on armor.

Wei Kang asked in a low voice, somewhat surprised: "What are you doing?"

Wei Buyi raised his chin towards Liu Tan's position and said, "Brother, let me tell you something. Whenever you see His Royal Highness the King of the Northern Territory with this expression, it usually means he's determined to fight to the death. I'll put on my armor first to avoid wasting time."

After he finished speaking, Wei Kang hadn't reacted when he heard Liu Tan turn around and say to Wei Buyi, "Send someone to scout the terrain. If anyone kills someone in front of me, I'll kill his entire family!"

Wei Kang was startled and couldn't help but look at his brother, thinking that his brother knew a lot about His Royal Highness the King of the North.

Wei Buyi took the order and left. Liu Tan turned around and sat back in his seat, except for the news about Qie Lan Kingdom he had brought with him before.

Although the Qielan Kingdom is a country, in Liu Tan's eyes it is at most a tribal chiefdom. Due to the limitations of the terrain, it is not very big at all.

According to the information they collected, the population is not very large, about 20,000 to 30,000 at most.

However, even though it seems that their population is dozens of times larger than the people brought by Liu Tan, unless all the people in Qie Lan Kingdom are mobilized as soldiers, they cannot be more powerful than his elite group.

The only thing to worry about is that the elite regiment is not good at mountain warfare. Liu Tan once asked them to go to Yangshan for training, but the mountains in the northern border country are too different from those in the south.

First of all, the vegetation in the mountains of the northern border country is not lush, while the mountains in the south are really lush and green. Once you go into the forest, you don’t know where you are going.

So the fighting methods are different. The only advantage is that most of the fighting in this place is close combat, and it is difficult to keep distance.

When it comes to close-range combat, the crossbow is the absolute king.

I don’t know if the equipment can make up for the unfamiliarity with the terrain.

Wei Kang originally thought that since His Royal Highness the King of the Northern Territory had said that he wanted to kill the entire family of King Qilan, he would definitely be anxious to send his second brother to the war. For a moment, Wei Kang was a little worried.

Unexpectedly, although this prince spoke powerfully, he was actually very cautious.

He just asked Wei Buyi to attack a certain point first, and then called people over to formulate strategies and tactics. He did not rashly send people out to fight.

Wei Kang breathed a sigh of relief and also felt that anyone who could defeat Wu Shilu should not be so impulsive.

When Wei Buyi went to scout the location, he also brought someone with him, a person who specialized in drawing maps.

When Liu Tan first met Wei Guan, he was extremely happy. But when he arrived in the Northern Border Country, he found that there were many people who could remember the geography along the way as they passed by.

It is true that they are talented, but they are not rare.

Even when the elite team was being selected, there was such a weirdo who applied.

At that time, Liu Tan was surprised why this person didn't take the imperial examination or rely on recommendations, but instead came to join the army?

Later I learned that his family had died because of the Huns' looting from the south, and his greatest wish in life was to fight the Huns.

He had also been there for ordinary conscription, but he always felt that it would be a long way off to defeat the Huns there.

So he had been trying to find a way to get to the Surrender City, but he didn't expect that the King of the North would start selecting people to form an elite group.

He had heard a little about the battles between the King of the North and the Huns, so he came to apply.

Liu Tan once wanted to persuade him to study and take the imperial examination or to directly give him an official position.

It turned out that this guy was very stubborn and wanted to be a soldier to fight against the Huns. Liu Tan had no choice but to make him a civilian staff member of the elite regiment - well, the kind of civilian staff member who could kill ten Huns with a sword.

Anyway, this guy performs well in various physical tests and can even draw maps. He is simply the treasure of the elite group.

Liu Tan originally didn't want to bring him this time, but the elite regiment was almost moving out as a whole, so it wouldn't be good to leave him alone, so he simply brought him along.

Now it finally comes in handy.

The man drew the map extremely quickly. The map must have been very rough due to the haste, but because this place had many more reference objects than the Western Regions, it was relatively easy to recognize even though it was rough.

Liu Tan took a look and raised an eyebrow, asking, "The Qie Lan Kingdom is actually in a valley? There's plenty of plains here where you can build a city. Why do they insist on staying in the valley?"

Wei Kang was probably the most well-read and knowledgeable person in the tent. Seeing that no one could answer His Royal Highness the King of the Northern Territory's question, he coughed lightly and said, "It's mainly because of the terrain. Lingnan is also called Baiyue because there are so many tribal nations here. They are even more unstable than in the Western Regions and often fight each other. In times like this, terrain is very important. It is precisely because of this that the Lan Kingdom has survived until now."

Liu Tan then understood that what the other party wanted now was not development but survival.

He stroked his chin. "Are there other countries around here? I wonder if we can form an alliance with them..."

Wei Kang shook his head. "It's difficult. Although these small nations often fight each other, they are surprisingly united in their attitude towards the Han Dynasty. I don't know what they are thinking. Anyway, since the destruction of Yelang, they have been very united."

Liu Tan understood as soon as he heard it. It was probably because the Han Dynasty destroyed Yelang too easily, which left a psychological shadow on these countries, resulting in their more consistent attitude towards the Han Dynasty - they could fight each other, but once they met envoys sent by the Han Dynasty, they had to unite, otherwise Yelang would become a lesson for them.

He chuckled softly, "If these countries don't commit suicide, why would the Han Dynasty bother with them?"

Wei Kang remained silent, obviously not wanting to go against his own conscience.

If these countries had not united to fight against the Han Dynasty, they would probably have become the Han Dynasty's territory like Yelang or Shuzhong.

If you are lucky, it can become a vassal state, but if you are unlucky, the whole country will be gone.

Liu Tan took a look and frowned, saying, "It's surrounded by mountains, and the mountains are very steep. How can we fight this?"

Wei Buyi said with emotion, "It would be great if there were catapults. I sent someone to take a look, and they found that their city walls are very short. The catapults could throw stones directly into the city."

Liu Tan looked at him and asked, "Since the wall is short, can we climb over it?"

When it comes to sieges, isn't it true that entering the city is the equivalent of winning?

Wei Buyi thought for a moment and said, "I can bring some brothers to try it."

They had iron chains and grappling hooks, so it was not difficult for them to climb the city wall.

However, what they didn't expect was that the elite group was unable to get close to the capital of Qie Lan Kingdom at all - Qie Lan Kingdom actually released miasma outside the city.