One hundred and twenty miles north of xiapi City, Gefeng mountain.

Twenty thousand Danyang elite soldiers marched all the way under the banner of "Cao". They even rushed back to xiapi in two days. Cao Bao's march speed was only a little slower than Xia Houyuan.

When Cao Bao saw Tao Qian's Messenger, he was shocked. You should know that his family members and industry were all around xiapi City, and many of the family members of the officers and soldiers in the army were in xiapi. If xiapi was lost, how could he get it? Therefore, Cao Bao led 20000 elite troops of Danyang and accelerated their progress all the way.

"General, there are still 120 miles to xiapi city. Shall we have a rest?" Du Wei Cao Dan gasped.

"Well." Cao Bao nodded: "there are a large number of Cao troops outside xiapi city. If our army arrives with tired division, I'm afraid it will be taken advantage of by the enemy."

After that, Cao Bao ordered: "the whole army will listen to the order, rest for two quarters of an hour, eat some dry food and drink some water, and then continue to March."

After hearing Cao Bao's order, 20000 Danyang soldiers immediately breathed a sigh of relief and slowly rested.

In less than a quarter of an hour, smoke and dust were suddenly rising in the north. Twenty thousand Danyang soldiers were on the alert. Without Cao Bao's order, they gathered automatically and formed a formation.

In the north, a puma's army and horses galloped forward, with the same word "Cao" on the flag. However, the enemy general's flag was blue, while Cao Bao's general flag was light green.

"Cao? Is it that Cao Cao himself led his troops here? " Cao Baosi cableway, rode up a small mound, looked down from high: "but only 8000 people? It seems that Cao Cao didn't lead the army himself. Hum, let these Qingzhou thieves know the power of our Danyang soldiers today

"The whole army is at your command! Let the group of Qingzhou thieves know how powerful our Danyang soldiers are

Cao Bao gave a sharp drink. Although the 20000 Danyang elite soldiers were just very loose, they were forbidden to do so. After hearing Cao Bao's order, they changed their formations very quickly. Each of the 20000 Danyang elite soldiers stretched out an array, just like two wings of a wild goose, which was used to attack the enemy.

The formation of the flying geese formation is like a huge scissors, and the left and right wings are like sharp blades extending out to smash the Cao army in front of them.

The leader of the 8000 Cao army was no one else. It was Cao Ren, a general of the clan of Cao Cao. He was in his early 30s and had thick moustaches on his mouth, which made him very stable.

Among the great generals of Cao Cao clan, Xia Houyuan marched quickly and was good at attacking thousands of miles. Xia Houdun was majestic and obedient. He was often on his own. Cao Hong was impatient, brave but narrow-minded. Cao Ren was on the contrary and good at fighting hard. When Qingzhou was pacified, it was Cao Ren who led 5000 troops and horses to block the siege of the Yellow turban thieves.

Therefore, Cao Cao specially sent Cao Ren to lead the army, hoping to rely on Cao Ren's steadiness to hold down Danyang soldiers.

"Form a circle, resist the enemy's attack, retreat slowly, and keep the enemy away!"

Cao Ren analyzed the situation at a glance. The number of enemy troops was large, but Cao's troops were small. Cao Bao obviously wanted to rely on the large number of people and the overwhelming majority, and directly led the Danyang army to encircle and destroy 8000 Cao troops.

In any case, the enemy must not be surrounded on all sides!

The eight thousand Cao troops formed a round formation in the same place. The two wings of Danyang soldiers had just come up to fight. Cao Bao ordered 20000 Danyang soldiers to march around to attack Cao army.

Cao Ren failed to fulfill Cao Bao's wish and led 8000 Cao troops to fight and retreat. Although there were many elite troops in Danyang, they could only fight with 8000 Cao troops. However, Cao's army was rotated back and forth with little effect.

"Hum, Cao Dan! You led five thousand Danyang soldiers to make a detour on the flank and directly thrust into the enemy's rear troops. " Cao Bao looks gloomy when he sees that the war situation is not favorable.

"No!"

Cao Dan took his orders and sent 5000 people out of the 20000 Danyang elite soldiers.

"Follow me." Cao Dan led five thousand Danyang soldiers out of the flying geese array and made a detour on the side, while Cao Bao ordered the whole army to attack fiercely. After all, Cao Ren had few soldiers and was temporarily held back.

"Defeat Cao Jun and kill Cao Ren!"

A moment later, Cao Dan successfully arrived at Cao Ren's side, shouting with excitement.

"Kill Cao Ren!"

Five thousand Danyang soldiers roared with a roar, like a fierce tiger descending the mountain. At the speed of patrolling, they stabbed Cao Renjun's flank like a sharp sword from the side.

"I can't believe that Danyang soldiers are so difficult to deal with. No wonder old Tao Qian has been herding Xuzhou for so many years." Cao Ren sighed, but there was no regret for the failure.

"Arrangment, eight golden locks!"

Several flag soldiers around Cao Ren immediately waved the flag skillfully. In a moment, they practiced a set of complicated flags, which made Danyang soldiers confused.

However, after seeing the banners played by the flag soldiers around Cao Ren, the 8000 Cao troops began to change their formations under the command of the army Sima, Tun Chang, Shi Chang, and so on. With a slight change in the round array, it became an angular formation.

Cao Bao was stunned: "what is the mystery of Cao Ren?"

Only eight thousand Cao's troops were vaguely arranged into eight gates. They rushed in from one door at random. They were afraid that they would be able to smash their troops."Hum!" Cao Bao snorted coldly, and the ring head sword pointed to Cao Renjun: "the whole army will enter from now on. Don't pay attention to the enemy!"

Twenty thousand Danyang soldiers obeyed orders and killed them in the direction Cao Bao pointed out.

Cao Ren's face showed a smile: "great, it's a surprise door!"

The art of war pays attention to formation. The formation of the army has its own effects. The front arrow array and the long snake array are very sharp, which are conducive to breaking through the enemy array; the square array and the round array have strong defensive power, while the flying geese array is easy to attack the enemy. These are relatively simple formations. Even the generals who are proficient in the art of war can display them and apply them randomly.

Among them, the change of Xiangren array is more complicated than that of xuanren array.

Only 20, 000 Danyang elite soldiers entered the gate of alarm. The Cao army in the eight gate golden lock array immediately began to change constantly. The Danyang soldiers who attacked Cao army not only died but also were unable to attack in any case.

"Well? It's a little weird! "

Cao Bao frowned, and quickly ordered the Danyang soldiers to retreat, and by this time the Danyang soldiers had been killed and wounded by hundreds.

Cao Bao touched his chin beard and said, "what kind of muddleheaded formation is this? And how to get into it?"

Cao Bao thought hard. He divided several small troops and tried to find out which one was the enemy's real life gate.

However, Cao Ren has already understood the reason of changing the formation, and the army constantly changes its formation.