Luo Xian saw that they all looked suspicious, smiled quietly, took out something casually, spread it in his palm, and said to Zhang Xian and others: "With this thing here, why worry about not being able to retreat to the enemy?"

Zhang Xian looked over and found that the thing in Luo Xian’s hand was not too big, and he could hold it with one hand. The thing was black and gray, obviously made of iron, with four sharp thorns, but it looked rough, but the top of the spikes was extremely sharp, and the sharpness was very similar to the arrow.

But even the bow, crossbow, sword and gun cannot hurt the Wei army. Can such a small thing in Luo Xian defeat the enemy? Zhang Xian did not know what the thing in Luo Xian was, but he was not optimistic, and would not think that this thing really had the miraculous effect of defeating the enemy.

However, Lu Kang exclaimed: "Zhama Nail?"

Luo Xian laughed and said, "General Lu is well-informed and recognizes this thing. It's not bad. This thing is a horse-drawn. It was invented by our prime minister Zhuge before his death. Although it is small, it is a great hero who saved the lives of tens of thousands of soldiers!"

As he said that, Luo Xian threw the horse nail at random and threw it on the road. The horse nailed it on the ground and rolled a few times. Finally, three feet were facing down and one foot was facing up, raising the straight spike.

Luo Xian said: "The biggest beauty of horse nailing is that no matter how you throw it, the four feet always have one foot facing up, so you can easily lay out a large area of ​​obstacles without any effort. The enemy's cavalry is most afraid of this thing. Once the horse's hooves step on, they will be injured. Although it is not fatal, it loses its combat ability. Therefore, when retreating, this is a magical weapon to block the enemy."

The horse-stapled nail is also called the caltrop. It was a hidden weapon specially designed for cavalry after Zhuge Liang saw the caltrop ball in Wuzhangyuan. The biggest advantage of the horse-stapled nail is that its four sharp thorns are always facing three sides down and one side up, so this hidden weapon does not need to be specially arranged in advance. When it needs to be used, throw it on the ground and finish it.

Of course, this kind of hidden weapon can only be used when retreating, otherwise it will be more than the enemy. Zhuge Liang ordered craftsmen to build a large number of them, but unfortunately he had never used it himself. With endless regrets, Zhuge Liang died in Wuzhangyuan.

As soon as Zhuge Liang died, the crisis of the Shu army came soon. Sima Yi was usually afraid of Zhuge Liang. As soon as Zhuge Liang died, there would be no rivals among the Shu army. Of course, Sima Yi would not let the Shu army that was preparing to retreat and concentrate his troops to pursue him with all his strength.

Knowing that Zhuge Liang had already made arrangements, he ordered people to not be mourned in secret, and used a substitute to sit in a wheelbarrow with a feather fan and scarf. When the Wei army chased him, he was stunned by the substitute and thought he had to withdraw his troops. From then on, the legend of "Zhuge died and scared away the living Zhongda" was circulated among the people.

Of course, this is just a folk legend. Although Sima Yi is cautious in using military force, he will not be scared by Zhuge Liang's substitute. In fact, what really stopped Sima Yi was the Ma Ting that Zhuge Liang had just invented.

The retreat of the Shu army was all narrow and dangerous mountain roads. They just needed to sprinkle horse nails on the mountain roads, which would definitely cause the Wei army to suffer a lot. Many war horses and soldiers were injured and could no longer pursue them.

Even though Sima Yi sent more than a thousand people to wear shoes made of wooden boards to clear the lightning and clear out the horse-piercing nails, it also wasted a lot of time. The Shu army had already retreated to Hanzhong safely, so when Luo Xian mentioned the horse-piercing nails, he emphasized that this small object had saved the lives of tens of thousands of troops. This is indeed the truth. If the horse-piercing nails were not used to block the Wei cavalry, it would be no easy task for the Shu army to escape without it.

Although the Zhamadai was used during Jiang Wei's Northern Expedition, Jiang Wei would not use it randomly until he had to. First of all, the Zhamadai was made of iron and was a disposable consumable and had a great demand for iron. You should know that the iron is a strategic material, and the Shu army also needed it to forge weapons and armor. A large amount of waste on the Zhamadai was not cost-effective.

Secondly, Jiang Wei's route of sending troops is basically fixed, which means the path he has taken this time may have to leave next time. If he throws the horse nail at will, it will be like burying thunder for himself.

Therefore, the horse-drawn is not a common weapon, and it has never been used on the southeast battlefield. It is not surprising that Zhang Xian and others do not recognize it. Lu Kangbo is knowledgeable and knowledgeable. Although he has never seen the real thing of the horse-drawn, his shape is exactly the same as what he said in the newspaper, and he immediately spoke out casually.

At the same time, Lu Kang also secretly sighed that Zhuge Liang is really a god-like man, and he can actually come up with such a powerful weapon to deal with cavalry. Although it is impossible to truly defeat cavalry, if it is used during retreat, it can completely achieve miraculous effects and greatly slow down the pursuit speed of enemy cavalry.

The reason why cavalry is terrible is its speed. No matter how the infantry flees, it is difficult to escape the cavalry's pursuit and fierce attack. If the horse nail is used to effectively curb the cavalry's speed, the cavalry's speed advantage will be gone, and the escaped infantry can easily get rid of the pursuit.

Seeing the pursuers getting closer, Luo Xian calmly ordered the Shu soldiers to throw a large number of horse-drawn nails on the road and cover them with branches and hay.

The horse-tab itself is black and gray, and it is not large in size, so it is very inconspicuous when thrown on the ground. If you didn’t look at it deliberately, it would be difficult to find it. If you use branches and plants to cover it, it would be almost difficult to find it.

The main reason why the Shu army chose to place horse nails in narrow places was that the Shu army was actually not equipped with too many horse nails. If it was arranged in a wider place, it would require a large number of horse nails. Obviously, the Shu army did not have that much inventory.

When Luo Xian planned the retreat route, he had already thought of a way out. He did not follow the direction of the Wu army running to the police, but turned to the southwest. Most of the places were mountains, hills, and narrow roads, which were the most suitable for laying horse nails.

This horse-sharp nail was prepared by Jiang Wei in advance. In fact, Luo Xian had not used the horse-sharp nail at all in Yong'an for a long time, so the Yong'an army was not equipped with the horse-sharp nail. Jiang Wei asked Luo Xian to lead troops to rescue Lu Kang. He knew the power of the Wei cavalry, so he took out these treasures at the bottom of the box and told Luo Xian how to use it.

Therefore, Luo Xian now ordered the use of horse-tab to deal with the Wei cavalry, which was actually a strategy set by Jiang Wei. Only by using this method can Lu Kang and Luo Xian safely get rid of the Wei army's pursuit.
Chapter completed!