Yang Yuan and Ding Feng were overjoyed when they heard it, they were both generals on the battlefield, and they also knew little about the exchange device, like Yang Yuan, although he had the exchange authority, he was not very clear about the specific things that the exchange device could exchange, but Chi Hu was the opposite, he had been managing logistics in his previous life, and he was also very familiar with the exchange device.

"Without further ado, Chi Hu, you go to Tianxing Pass first, to defend Pingyang County, you still need at least three thousand soldiers, and it is best to exchange some more archers and pikemen" Ding Feng said hurriedly.

"Okay, the defense of Pingyang County will be handed over to you" After Chi Hu finished speaking, he didn't delay, brought more than fifty soldiers, drove more than a dozen ox carts, drove more than a thousand war horses, and headed towards Tongtian Peak.

Along the way, Yang Yuan was also very curious, Chi Hu's ox carts were very fast, originally he thought that it would take a day for more than fifty miles, but what he didn't expect was that in just half a day, they had already reached the valley below Tongtian Peak.

"Chi Hu, do you have the same stunts as Han Feng," Yang Yuan couldn't help but ask.

"Who is Han Feng, is it the same as us" Chi Hu put the ox cart in the valley and followed Yang Yuan towards Tianxing Pass.

"Yes, the general also bought him more than a dozen large carriages, and he can run faster," Yang Yuan finished speaking, and told Han Feng about transporting troops in large ox carts.

And Chi Hu's heart had a little more yearning, he naturally knew that there were at least hundreds of large ox carts under his hands in the previous life. But now if there were a few large ox carts, his transportation capacity would be even more remarkable. I can't help but be curious about this Korean style, there will be the same stunt talents, sometimes combined together, and there are unexpected effects.

When he came to Tianxing Pass, Yang Yuan turned on the exchange device. Chi Hu glanced at the panel and said with a burst of joy.

"The general has given you full permissions, as long as the exchange device is available, all of them can be sold and purchased"

"Is there any difference between this" Yang Yuan was a little embarrassed, he wasn't very clear about these, he originally thought that all of them were the same.

"It's not clear for a while, you know, the general trusts you very much, you look here" Chi Hu said, clicking on the silver for sale.

"Items can be sold here, choose detection, the detection range of the sixth-level exchange device is fifty kilometers"

There was something like a radar on the screen, which kept spinning and spreading.

It was detected that 1,345 horses were of excellent quality, of which 146 were slightly injured and of ordinary quality. The screen flickered non-stop.

"Then you can sell it," Yang Yuan couldn't help but ask.

"Yes," Chi Hu said, clicking on the sale.

War Horse 1345 price 45 silver coins per unit, excellent quality price increase of 20%. Earn a total of 72,630 credits.

War Horse 146 price 45 silver coins per unit, 6570 silver coins.

Yang Yuan looked at the extra 80,000 silver coins and couldn't believe it, this is more than 80 million copper coins, if Wang Gang was here, he couldn't help but burst into foul language.

"That's it," Yang Yuan asked uncertainly.

"That's right, just buy another star soldier," Chi Hu said, tapping the screen skillfully. In silver bought pikemen, sword and shield soldiers, and archers for a thousand. And in the ordinary ox carts, 60 ox carts in one breath. Then he bought some food, turned to Yang Yuan and said.

"How many cavalry are you going to buy?"

Yang Yuan was stunned for a while when he saw that there were only more than 40,000 silver coins left, so it was only a moment. This Chi Hu used up the general, originally he also wanted to give Ding Feng a soldier to just give it a meaning, and the remaining 70,000 silver coins were just enough to buy a thousand cavalry, so that if he encountered a small group of cavalry, he would directly rush and kill.

Yang Yuan pushed Chi Hu away, covered the screen with some distress and said.

"You, what did you buy. I used more than half of the silver coins in this way, and the rest is mine" After speaking, he hurriedly clicked on the cavalry exchange, spent more than 40,000 silver coins, and bought more than 600 one-star cavalry. Only then did he glance back at Chi Hu.

"Don't be angry, you can make money again when you run out of money. It's not too easy to make money in this world."

Chi Hu said to Yang Yuan with some flattery, but his originally honest face was a little more cunning.

"Really," Yang Yuan asked with some uncertainty.

"Of course it's true, you also saw that the Qiang people attacked with more than 20,000 cavalry. There are at least more than 20,000 war horses, if they are all snatched up, how much can they be sold for," Chi Hu said seductively.

"Even if it's not easy to rob, and we only have more than a thousand cavalry, it's still too reluctant to deal with 20,000 cavalry" Although Yang Yuan was tempted by 20,000 war horses, he still retained a trace of clarity.

"Of course not now, but we can eat them up little by little, accumulate our power little by little, rely on the exchange device, and gradually wipe out this Qiang army" Chi Hu finished speaking, his eyes were full of light.

"It makes sense, then we'll go and grab their war horses now" Yang Yuan heard that he could slowly grow himself, and he suddenly became very interested.

"It's not in a hurry now, the Qiang people's army is still more than 100 miles away from Pingyang County, we will send these soldiers to Ding Feng first, and wait for the opportunity when the Qiang people come to Pingyang County."

After the two discussed, they turned off the exchange device, drove more than 70 ox carts, and took advantage of the night to send 3,000 soldiers to Pingyang County.

Two days later, more than 50,000 Qiang people surrounded the city of Pingyang County, which was more than four zhang high and two zhang wide. It is the size of a medium-sized county. There are four city gates in the southeast, northwest and northwest, the only disadvantage is that it is located in the plain, and there is no natural danger. The people in the city were already frightened to shut up when they saw so many Qiang people, but Ding Feng didn't expect these people to defend the city, but the county commander reluctantly recruited hundreds of people to assist the soldiers in transporting some rolling stone and sasswood to the city wall.

Ke Muzhi, the commander of the Qiang people, was furious at this time, the two thousand cavalry the day before yesterday, was killed by the defenders of the county town and was defeated, which made him how to endure, and no longer talk nonsense at the moment, and ordered the foot soldiers to launch a fierce attack on the three city gates in the southeast and west, although he was already angry, but he was still clear about the reason for the lack of one of the three besieged, in order to reduce casualties, or leave the north gate for the people in the city to escape.

But he kept an eye on it, and sent two thousand cavalry to hide in the dense forest on the east and west, and if the Han escaped from the north, then four thousand cavalry pursued and killed, so few people could escape the pursuit of the cavalry on the plain.

The battle lasted for two days, and the elite of the city soldiers far exceeded Ke Muzhi's expectations. In particular, the generals who commanded the defense of the city did not leak a drop of defense, whether it was a night attack or a sound attack on the east and west, it did not play any role, and more than 2,000 Qiang soldiers were lost in vain.