Calling a few soldiers to go a ride alone, the mine was carried outside the city, and Liu Yi dug a pit with a hoe to bury the mine.

"General Qu, tell someone to let a cow go and step on a mine." Liu Yi sent someone to inform Guan Yu and Qu Le when he moved the mines, and he wanted them to come and see the power of the mines.

"Okay!" Qu Wei asked someone to bring a cow with great expectation, Liu Yi had already described the power of the mine to Qu Wei before, and Qu Wei also felt amazing when he heard it.

"Moo!" With a bang, a soldier slapped the cow's buttocks fiercely, and the cow ran in pain in the direction of the mine.

When the ox was about to run to the place where the mine was laid, it was no wonder that everyone present stared at the bull galloping past expectantly.

"Bang!" Boom! The cow stepped on a mine and was blown apart, and everyone who saw this scene looked at the cow that was torn apart in surprise except for Liu Yi.

"It worked!" Liu Yi shouted, he was not sure if the mine would explode before, because after all, the steel wheel ignition device was replaced by a stone wheel made of stones.

"Lord Liu, this is amazing!" Seeing the power of the mine, Qu Wei can only be described by the word magic, he has never seen a thing buried in the ground and can explode when stepped on.

"Big brother, you're so powerful! This stuff is amazing. Guan Yu admired Liu Yi to the extreme, first gunpowder to firecrackers and then now landmines, the appearance of these things surprised him one by one.

"The Lord is truly a man of God!" Among all of them, the one who is the best at making things is undoubtedly He Le, but when he saw one magical thing after another created by Liu Yi, he knew that there were people outside the world, and there was heaven outside the sky, even if he was a casting master in the Ouzhizi lineage, what Liu Yi made now is much more powerful than what he made.

Seeing Guan Yu and them praising the mines one by one, Liu Yi smiled, if the guns were tossed out by him in the future, what kind of expressions would they have at that time?

"General Qu, you go and hire a large number of craftsmen to come over, and I will teach the master how to make mines later, and let the master teach them how to do it when the time comes, and prepare a large number of stoves and nitric acid, sulfur, and charcoal for us. As long as we make a large number of mines and bury them in the path that the thieves must pass, we will ambush them again, and I believe that we will definitely defeat the enemy army. Liu Yi swore that he had the capital to speak this time, and he absolutely believed that the mine could blow up Han Sui and Ma Teng.

"Good! I'll send someone to find an arrangement! Seeing the power of landmines, Qu Wei also had the courage, and he also believed that the miraculous thing of landmines could severely defeat the enemy.

"Let's go, master, let's go home, I'll teach you how to make mines, and then you go and teach the craftsmen how to make them." Liu Yi said this obviously to shirk responsibility, and asked him to patiently teach people how to make mines, he would be annoyed to death, so this matter can only be done by He Le.

"Good!" He Le was very curious about landmines, he had long wanted to try to make mines with his own hands, with this curiosity, he didn't hear Liu Yi's meaning at all, but even if he heard it, he wouldn't say anything.

After the experiment on landmines, the people who saw them returned to their posts with incredible psychology, and Liu Yi went back to the house with He Le to teach him to make mines.

He Le is worthy of being a famous craftsman, he learned to make mines quickly, Liu Yi made it once he learned, in the afternoon Qu Wei found two hundred craftsmen according to Liu Yi's instructions, and then under the leadership of Qu Wei came to a large mansion, in which there were a large number of stoves and a jar of nitric acid, sulfur, and charcoal.

"Master, you are here to instruct them to make mines, and I'll go back first." Liu Yi ordered Qu Wei to go out.

"General Qu, send people to watch over here, and don't let people come in and out." Liu Yi told Qu Wei that when he was just learning military industry, the teacher warned them that when making weapons, they must watch the places and people where they make weapons, first, for fear that the enemy will come to steal technology, and second, to prevent the people inside from leaking secrets.

"Yes!" Qu Wei still understands what Liu Yi means.

Returning to his residence, Liu Yi opened a map of Hanwu County that Qu Wei asked Qu Wei for, he wanted to find a good place to bury mines, and it was the only way for Han Sui and Ma Teng to go.

After looking around on the map, Liu Yi analyzed the terrain one by one, and on the way to Hanyang from Han Sui and Ma Teng, there were two suitable locations for mine ambushes, one was Yangli Valley and the other was a large forest.

Yangli Valley is a relatively small valley, if you let the 180,000 troops pass, it can only pass 30,000 or 40,000 people at a time, as for the forest side is relatively large, this is a very small forest in the entire Xiliang, this forest can let more than 100,000 people pass through at a time.

After comparing the pros and cons of the two places, Liu Yi finally chose Yangli Valley, Liu Yi and their number is not large, only more than 20,000 people, it is more appropriate to choose Yangli Valley, if you choose 20,000 people in the forest to deal with more than 100,000 people, you will still suffer.

After choosing the terrain, the next thing is the strategic arrangement, through the lessons of the last time, Liu Yi still knows a little bit of how to lead the troops, if he still blindly sends troops like last time, then even if there are mines Liu Yi They don't have the correct deployment, they will definitely suffer a loss.

In the evening, Liu Yi summoned Qu Wei and Guan Yu to discuss how to arrange and deploy in Taishou Mansion, Liu Yi of Taishou Mansion had no intention of living in, and Liu Yi felt that it was not clean when he killed many people in the last operation.

"General Qu, second brother, let me tell you what I think first!" Liu Yi, as the leader of Hanyang City, was the first to say his thoughts, he had just talked to Guan Yu Quwei about the terrain choice of Yangli Valley, and they had no opinion, and the next thing was the strategic deployment.

"I am going to plant a large number of mines in the Hanyang Valley, and when the enemy troops step on the mines, they will definitely retreat in a hurry, and then we will send people to throw stones at the mouth of the valley to block their way out of retreat, and when they retreat, they will definitely charge forward, as long as they charge, they will definitely kill most of them, and it is possible that even the commander will be killed, as long as the commander is killed, the enemy's army will be in chaos, and when they finish the mines, we will go up." Liu Yi had already thought very carefully about this arrangement, and he also had a way to make Han Sui and Ma Teng die.

"Big brother, I have no opinion." Hearing Liu Yi's plan, Guan Yu thought about it carefully and felt that it was very appropriate, after all, they had landmines this time.

"I think it's good, too!" Qu Wei also agreed, Liu Yi's plan barely made him picky, his talent was limited, if it was Guo Jia, these people would definitely be able to put forward opinions to make this plan more perfect.

In the blink of an eye, it had been four days since the last plan was discussed, and more than 10,000 mines had been completed overnight.

And Han Sui and Ma Teng's 180,000 army are also getting closer and closer to Yangli Valley.