Although he accidentally tried his best to defeat the pass of the Congoyao Mountain, Guan Yu soon discovered that this time he accidentally hit the money and was worth it.

First of all, early the next morning, Huang Quan, the army officer in charge of torture the prisoners, reported that he learned from a captured Qu Junhou and three gate chiefs that after half a month of stalemate, the number of enemy troops in front of Wei County had reached a huge 30,000 people!

Not only did the standing army of less than 10,000 people in Jianning County at most, as well as the temporary mobilization of more than 10,000 people, the Mengchang tribe located at the junction of Jianning County and Yongchang County sent tens of thousands of reinforcements.

In addition, the prisoners also told the prisoner Cai Fei that when he was encouraging their morale, he said that the Yueli barbarian king Gao Yi might also send troops to help, but the Yueli journey was long, so the troops had not arrived yet. When Gao Yi's reinforcements arrived and Guan Yu was tired of his veterans, Jing Yi would lead the Southern Central Alliance to take the initiative to enter the open area to fight against Guan Yu!

The reason why the Iwayao Mountain Pass is still lost in this situation is because the terrain of the checkpoint is narrow and there are not many troops to expand, so the side cannot exert its power.

After confirming the enemy situation, Guan Yu became more and more confident in the effect of seducing the enemy. Sure enough, the main forces had arrived.

Two more days later, Guan Yu confirmed that the risk of his food pipeline being penetrated was greatly reduced, so he sent a messenger back to Zhu Ti to urge Zhang Fei and Li Su.

This is also a side benefit of taking down the Concaoya Pass, because when the wall of the pass is in the hands of any party, the defenders can force the enemy away from the open area within two hundred steps before the pass. In this way, at night, people can use hanging baskets to fall down, sneak out of the pass, and hide in the mountains and trails on both sides.

This is also the reason why Jing Yi and Cai Fei could repeatedly send mountain-crossing teams familiar with the terrain to intercept and kill Guan Yu's wheelbarrow grain transport team.

Now that Guan Wall is in the hands of Guan Yu, Jing Yi and Cai Fei sent people to infiltrate, the difficulty has suddenly increased by an order of magnitude.

Guan Yu waited anxiously in the Guan area for ten days, and finally waited for the messenger to travel together and cross mountains and rivers to reward him.

"Where have the third brother and the military advisor been?" Seeing the messenger back, Guan Yu couldn't wait to ask.

"Report to the general, when I returned to Zhuti, the third general was about to set off from the water route and enter Tushui from Lushui. Governor Li asked to tell the general that he was also because the scout found out that the Yueli barbarian king Gao Yi had a tendency to reinforce Jing Yi, and was afraid that he would be caught by this unexpected enemy army halfway, so he immediately delayed the attack and let the enemy cross the river first. The rest of the plans remain unchanged."

Guan Yu stroked his beard and pondered: It turned out that Li Su was also in the absence of the plan for Yueli barbarian reinforcements. He was afraid that he would be attacked from front and back to make dumplings if he came too early, so he let all the enemies go...

This is also the most common accident in ambush battles. There are more enemies coming than expected, and you will have to finish your pockets before you can get it done.

"Since this is the case, it is not a major change. Our army is cautious in guarding the Imperial Pass and moderately acts as a way to continue harassing the enemy's camps in the mountain road. The catapult cart in front of the pass was also dismantled to the other side outside the pass and heavily installed it, pretending to be steady and steady to prevent the enemy from doubting."

"Yes, general!" The deputy general and the army immediately took the order to handle the matter.

...

Not to mention that Guan Yu's plan to perfectly complete the enemy lure plan, it was like an anvil that attracted all the main forces of the enemy.

On the other hand, Li Su and Zhang Fei, who were originally planned to send troops in early August, had been in the departure position of Zhuti County for an additional fifteen or sixteen days. They were not until the end of early September before officially starting from the waterway.

"August Crossing Lu" has thus become a more stable "September Crossing Lu". The fleet sailed hard on the turbulent Lu River (Jinsha River) for two days, and then turned into a much smoother water flow and a much shallower water level (Niolan River).

After entering the water coating, sailors can use thick and long bamboo to propel the boat. Each huge bamboo pole, three or four meters long, requires several sailors to work together, and can easily be inserted into the rocks at the bottom of the river and advance quickly with the boat. Each boat is equipped with at least four such long poles. As the saying goes, "one pole is on top of three oars". In shallow rivers in mountainous areas, boats are much faster and much less labor-saving than paddles.

Zhou Tai, the deputy general in charge of water war, took the lead on the first warship. Although these ships were light ships between the boats and the fighting ships, it did not affect Zhou Tai's confidence in dealing with the sudden enemy situation.

We took turns to carry the boat day and night, and walked safely for seven or eight days, sailed out more than 600 miles of water, and soon approached Muma County, a county town near the source of Tushui.

Neither Zhang Fei nor Li Su's army was discovered by the enemy. Sure enough, Lushui was regarded as poisonous water by the local southern barbarians. Since ancient times, I have never heard of any Han army that would attack along the river, so there was no defense at all on the deep mountains and dense forests on both sides.

In contrast, the biggest threat to Li Su's army and even Li Su himself is that the disease, although it is impossible for the Jinsha River and its tributaries to be really "toxic water", Li Su did not believe it, but the reason why the natives said this must be reasonable.

Therefore, this poison mainly comes from the primitive dense forests on both sides, and is also the mosquitoes, fleas, mites, bacteria in tropical rainforests. Some of the strong soldiers were bitten by malaria mosquitoes that were probably carrying malaria parasites, and small-scale malaria soon became popular in the army.

Fortunately, Li Su made a quick decision and ordered Zhang Fei to isolate all the sick soldiers on the same boat, and use different ships to isolate the patients and healthy soldiers.

But even so, the infection of malaria and other tropical diseases exceeded 10% of the troops. After walking 600 miles, at least seven or eight hundred people were infected. Hundreds of them were particularly serious and the patients on the ship could not hold on. Li Su had to promise them to go back down the river, or give them enough dry food and clean drinking water, so that they could find places with sparse forests on both sides of the river, and survive and wait for rescue.

In fact, Li Su has done a lot of things for this, otherwise the soldiers infected with the disease would probably be several times more, or even unable to control them at all.

"Is there any more flower oil? Apply some more. I can't do it anymore. I'm so hot that I wiped my body again and had to apply medicine again." Li Su lay alone in the cabin, gasping for breath, but he had to continue gritting his teeth and persevere. He knew that he would never fail at this time. As long as he walked out of the tropical rainforest basin and entered the Kunming area, everything would be fine.

The personal soldiers carefully sprayed and applied the precious flower dew water prepared in advance in the army to the governor to ensure that the core soul of Li Su, the army must not be bitten by mosquitoes, fleas and lice.

This flower dew water was also the one that Li Su was rushing to mass production when he was making the final preparations for Nanzheng. It was not that he didn't want to prepare it longer in advance, but because the plant products of this era could not guarantee the shelf life, and the essential oils of flowers and plants were easily volatile and failed. Li Su could only start centralized production one or two months before the war, and it was put into use immediately after the production was completed. In addition, summer is the season when flowers and various resins and saps are the most abundant, and the raw materials are easy to make.

Li Su's flower dew water was originally made by imitating the later tropical artifacts "Wanjin Oil" and "Feng Oil Essence", but the three main materials needed by Wanjin Oil, camphor, mint and eucalyptus oil, can only get the first two now.

Camphor is found in the south of China, and mint was bought by Hu merchants from Loulan, who came from the Western Regions before Li Su entered Sichuan. It was native to Persia and rarely planted locally by Han people in the late Han Dynasty. After Li Su entered Sichuan, in order to prepare for the southern barbarians' conquest, he sent a small amount of mint to serve military supplies.

As for the core soul, the eucalyptus oil used for antivirus, eucalyptus is still in Australia. There is no solution to the problem. Li Su can't use panacea to eliminate tropical diseases like those of the Hakka people who expanded the Southeast Asian countries in the late Ming and early Qing dynasties to use panacea oil to eliminate tropical diseases.

However, the lack of eucalyptus oil can at least have about half of the insect-proof and fever-proof effect of Panjin Oil, which is a great benefit for the Han army, which originally had nothing. If there is no flower water, maybe half of the soldiers would have to explain the voyage of "Lu Water Supply 600 Miles".

"I saw the city! Muma County is ahead!"

As the adobe city wall appeared at the end of its vision, there were still 4,500 people left to fight the Zhang Fei army with vitality, and Li Su's personal guards with 1,800 people left, all burst out with amazing morale.

After being bitten by insects for 600 miles, it was finally time to vent! The governor is really a god. He can carry a surprise attack on such a road. How can the enemy be defeated without any defense?

"Boya, don't move, just watch me go and come. Take the county town and pick you up into the city!" Zhang Fei saw that Li Su himself wanted to struggle, so he quickly pressed him down and asked him to lie down, saying that he would just leave the third brother to cook. These days, he endured the heat and slept with the insects on the boat, and had already put the strong Zhang Fei out of depression.

Zhang Fei's physique is much stronger than Li Su, so when the water supply of calories is supplied, trace amounts of mosquitoes cannot cause damage to his health. Along the way, he even used slapping mosquitoes as a pastime, and over the years he slapping thousands of mosquitoes to have fun.

Finally, I can kill people and vent instead of slapping mosquitoes!

Zhang Fei asked someone to lead a horse, put on a snake spear and put on armor, and then led his troops to attack Muma County.

There were already a small number of bumper wood and several flying ladders on the station ship. The key was that the city walls were broken like Muma, and the earth walls of the city walls were only one person high, and there was no defense since ancient times, and no one had come to attack such a remote city. The southern barbarians were too lazy to waste a lot of people on building the city walls.

So here are the two core counties around Dianchi Lake, Guchang and Dianchi Lake. The walls of other counties are almost the same as those of the northern walls and fire walls.

Zhang Fei led his troops to rush, not only was the city gate knocked open by a wood, but there was even a place in the city wall that was directly knocked down by trees, which was similar to hitting the courtyard wall. Then Zhang Fei jumped into the gap, started street fighting, waved his snake spear and assassinated wildly.

"Run quickly! Go to Weixian and Dianchi Lake to report the news!"

"Where did the mad army come from? Who called it?"
Chapter completed!