The strategy discussed by Guan Yu, Li Su and Xu Shu seemed to be very stable, but in fact, the requirements for implementation were very high.

For example, no matter how timely water is released from the mouth of Liujia Gorge where the Tao River flows into the Yellow River, it is necessary to flood the water accumulated over the past few days to the west of Jincheng City, and no matter how long it takes, it will have to rush along the Gaolan Valley for dozens of miles. In less than half a day, even if it is a natural flood, the peak movement speed will not be much faster than this.

In addition, it takes time for the beacon to transmit, so Guan Yu must be able to defend the camp for one day under the fierce attack of the enemy troops that are far more than five times higher than his own. The casualties cannot be too large, so he must ensure that he still has the power to counterattack.

At the same time, Xu Shu, who brought three thousand people to the upstream Liujiaxia to store water and release water, was not at all easy.

Although neither Yang Qianwan nor Song Jian came to check the situation of the Tao River estuary, when Xu Shu first stored water, he had carried out a certain degree of construction at the estuary where the Tao River and Huangshui River merged into the Yellow River, but Tao River estuary was the main one and Huangshui River estuary was the auxiliary one.

Later, the scout sent by Xu Shu observed that enemy reinforcements were approaching, so he stopped construction at the mouth of the Huangshui River in advance. He also urgently pretended to block the upper reaches of the Huangshui water outlet, making the terrain look like "before the Huangshui River enters the Yellow River, a section of the northern river bank collapsed, and some of the water flows into the northern lowland to form a damsel lake", which did not make people suspicious.

If the Di king Yang Qianwan had a little bit of education and had some scientific knowledge of geography and physics, and had a careful survey of the estuary of the Huangshui and Yellow River, he would probably find the danger in this place.

But there is no way, who made him the Barbarian King, but he suffered a loss of uneducation. In contrast, Song Jian, who came with him to reinforce, was a Han man at least, and he could still recognize a few words, but Yang Qianwan was completely unable to recognize one.

Unfortunately, Song Jian came from the direction of the Yellow River's main source, and Xu Shu did not block the main source of the Yellow River according to the construction difficulty. This led to people who could understand it not passing by, and people who passed by could not understand it.

Under Xu Shu's careful concealment, the news that "the enemy upstream is ready to open the gate and release the water" was concealed at the last moment of the decisive battle.

Later, it depends on Guan Yu's performance in the tough battle.

...

Guan Yu camped and defended at the Yellow River-Langshui Ferry Camp. It was not a day or two, but it was held for more than half a month.

Thanks to Han Sui's initial cowardice and did not dare to go out of the city to fight back, Guan Yu spent most of his time in the past half month, except for a small part of his time, mainly in recent days, spending the soldiers' labor force on snatching wheat and baking and rotating wheat, he spent most of the rest cutting wood and repairing fortifications.

There are two types of uses for cutting wood. One is that it can be used to repair village walls and cut into tiptoe piles and piled with rammed earth. At the same time, it also digs holes and arranges "ten-level deer antlers".

On the other hand, it can use the pedal lathe rods transported with the army to process more cheap, featherless and metal cluster-free arrows to be used by Zhuge Crossbows. Li Su brought a lot of lathes from Lintao this time, and Guan Yu and Ma Chao camps were divided into some of them, so that the production of wooden weapons could be produced wherever they were.

Arrows without metal arrow clusters are no longer useful in the Kanto battlefield, because they can only shoot armorless soldiers and are a little unable to deal with high-quality leather armor.

So Li Su brought a lot of cast metal arrow clusters that could be inserted and replaced, while Guan Yu's army rarely reserved because Han Sui's army's armor rate was much lower than Guo Si, so good steel should be used on the blade.

Guo Si was at least a general of the imperial cavalry, and he also plundered the arsenal of Chang'an. With official supplies from Dong Zhuo's army, his cavalry troops were at least covered with leather armor. Han Sui was an old thief for more than ten years, and he was a cannon fodder thief from beginning to end, so how much armor could he have?

Now, the camp fortifications built by Guan Yu and the large number of reserved arrows are about to exert their fierce effect.

With Han Sui's army and Yang Qianwan, Song Jian successively joined the attack camp, and the shouts of killing on the entire position were shocking. Han soldiers desperately shot arrows through the wooden fence of the camp wall.

Dozens of Zhuge crossbows are deployed ingeniously, with extremely tricky fire coverage angles. They cross-fired and straggled the flanks of the enemy's troops. Even if they were not shot accurately, it was because the enemy's cross-section was crowded and the killing effect was extremely large, and the targets could be missed.

But the officers of the three rebels were still there yelling to supervise the battle, allowing groups of soldiers who looked like animals to fill in.

"Kill! The entire army attacks! Those who retreat will be killed! Those who rush into the camp will receive a pair of armor and five pieces of silk! Guan Yu's army's property and supplies will be robbed at will!"

"Don't be afraid! Guan Yu's crossbow doesn't have many arrows! More than ten days ago, he shot arrows around our East City Wall every day and used up so many arrows! Now it's just right to wipe out them while the next batch of baggage has not arrived yet!"

"The arrows that Guan Yu's army shot on the top of the city were all wooden poles without clusters, which means that their arrows were almost used up! Pull out the antlers, push down the horse, and rush in directly, don't worry about burying the pit!"

In the first two tragic attacks, the rebel officers even dealt with the wounded soldiers on the line of fire. Because they pulled out the arrow and found that there were no metal arrows, they used this as a favorable news to boost morale and make the soldiers believe that the enemy had few arrows.

Since ancient times, one move has declined again and then exhausted three times. Yang Qianwan and Song Jian's soldiers bullied the weak and feared the strong. Because they had just come from afar and had not suffered setbacks, they were tempted by the trophies and were tempted by the temptation of the war. The initial offensive was really fierce and fearless, and their momentum was like a tiger.

Guan Yu sat upright on the sentry tower in the camp, observed the entire battlefield, and calmly joined the reserve team to the fierce battles of each battalion wall. This time, he led two camps in the western expedition, one of which stayed at the Yellow River Ferry Camp. At this moment, he naturally had to act as a strategic reserve team to block the enemy's assault.

Fortunately, the location of Guan Yu's camp is also very clever. Because it is a ferry camp, it is formed by a formation of water and is still at a turning point convex to the north by the Yellow River. Therefore, about half of it is more than tens of degrees. If the Yellow River blocks the enemy, it is impossible to attack.

The so-called "front-back attack" between Han Sui and the three parties was nothing more than a fan attack angle of 140 degrees from the east to the south, starting from the fan attack twenty degrees from the south to the west to the south.

The ten times the advantage of the number of people is not fully expanded and blooms everywhere.

...

"Those who think I am dead!" Yan Xing, the first fierce general under Han Sui, shouted to fight with his personal soldiers.

They dismounted and fought in a staircase battle, repeatedly rushing to the west of the camp, near the bank of the Yellow River. Because the Yellow River on the right is not covered by the crossfire of the crossbow, it was once the one that Han Sui's army killed the deepest.

The hit rate of the crossbow is relatively low. If you shoot ten arrows from the front, you may not necessarily have one or two arrows. In addition, most of Yan Xing's personal soldiers hold shields. As long as you protect the left side, all arrows without metal arrows can be blocked.

Since ancient times, the advantages and disadvantages of forming formations with backs and water have been clearly stated. The advantage is that you don’t have to worry about being attacked from the back, and the disadvantage is that once the morale of the army is unstable, you will completely collapse and surrender, or be driven into the river and drowned.

Let's add another force. If a part of the shaky people appear in Guan Yu's army and want to steal the ship to cross the Yellow River north to escape, it will definitely be a huge blow to the morale of the remaining soldiers.

We are not counting on killing Guan Yu and the 5,000 people to win, but forcing them to the dead end of taking the ship and harming their neighbors! If they are temporarily suspended and their confidence is restored, it will be more troublesome than having one or two thousand reinforcements!"
Chapter completed!