As Li Ling was worried, the Guirong people, who seemed to be powerless to resist, were actually trying to lure the enemy into depth and continuously introduce the entire Northern Expedition Vietnamese army into the depths of the grassland. This not only lengthens the Vietnamese army's logistics supply line, but also creates better opportunities for their own counterattacks.

At this point, most of their plan had obviously been completed, especially as another Guirong cavalry arrived in the rear, and after two pairs of bunkers were launched against the Vietnamese army, the situation of the already passive Vietnamese army became more and more dangerous.

Seeing this, Sun Bi of the central army did not dare to neglect it. He quickly sent troops back and forth to resist the new round of cavalry offensives. At the same time, he repeatedly ordered the contraction and set up a comprehensive defense policy.

If it were just the enemy in front of him, the Vietnamese army could still be entangled with it by consumption, but now the advantage of military strength disappeared with the enemy in the rear, and the disadvantage of infantry against cavalry was constantly expanding, which made Sun Bi have to choose to deal with it conservatively.

However, the cavalry that came with the wind came too fast. Before the Vietnamese army could set up a formation, hundreds of vanguards rushed to the front. The spear and scimitar rushed forward with a fierce attack, killing the more than a hundred soldiers who were in the forefront. Then they even stepped on the blood and bodies of the Vietnamese soldiers and rushed forward. In a short time, they had rushed to several defense lines, almost killing the central army's flag.

Seeing this, Sun Bi felt even more nervous. He really didn't expect that the Guirong cavalry would be so fierce. He could only send orders quickly and transfer his own cavalry who was still in front of him to fight back to meet the enemy. As for the enemy ahead, he could only rely on the formation to deal with it.

The second general Xiao Chengzhi, who was leading the army and Tie Lezhen's troops to fight hard to separate, was surprised when he heard this order. At that moment, Xiao Chengzhi shouted: "General Di, you lead the troops to stop them, I'm here!"

Di Jingfei did not hesitate and agreed, and he had already led hundreds of cavalry under his command to turn around and kill backwards. Their change of formation naturally fell into Tie Lezhen's eyes. In fact, there was no need to see the changes of the Vietnamese army. He had already understood the soldiers and horses coming from behind, and he immediately laughed strangely: "I want to leave? How easy is it!"

While shouting, he quickly urged his horse to chase Di Jingfei. When the other guards saw the Khan chasing fiercely, they naturally did not want to fall behind. While waving their swords and spears, they forced the entangled Vietnamese army in front of them to retreat. While accelerating again, they were about to pursue.

But as soon as they exerted their strength, the people and horses in front of them quickly stopped them. It was the soldiers and horses brought by Xiao Chengzhi. He himself had already stared at Tie Lezhen, rushed to stop him, and the short halberd in his hand whirred and thrust straight towards the opponent's chest waiting for the vital points.

The momentum was fierce, which made Tie Le, who was about to speed up to chase, dared not be disrespectful. He immediately pulled the reins and pulled out the sword in his hand quickly. Dangdang two times, blocking all the two halberds that were attacking. However, this time Xiao Chengzhi was attacking. After the two halberds were lifted, he immediately attacked again, with faster speeds than before and more sloppy angles than before.

Tie Lezhen immediately fought again, and at the same time he knocked his feet and controlled the horse to quickly lean towards the opponent. The knife in his hand had turned into a defense and wiped it at Xiao Chengzhi's throat.

But Xiao Chengzhi is not an ordinary person. He suffered a loss in riding skills before, but this time he learned his lesson. Seeing that the other party was forced to come up, he rode his horse to the side. Relying on his short halberd to be longer than the other party's scimitar, he even launched a snatch.

However, Tie Lezhen easily broke this move. After he immediately rushed over and rushed over with a sting, the people and horses had already arrived in front of Xiao Chengzhi. Then, without anyone else, he quickly slashed at Xiao Chengzhi's people and horses with several more swords, forcing him to fight quickly and keep coming out to respond.

Dangdangdangdangdangdang... The two of them kept intersecting with swords and halberds, and the horse under their crotch was controlled to move forward and backward. The battle was so brilliant. In a short period of time, they had fought for more than ten rounds, but no one could do anything to anyone.

Like the situation of the two main generals, the cavalry of both sides were completely entangled. The cavalry of Youzhou, who had already received military orders, were gritting their teeth and fighting with Guirong cavalry with more numerous and stronger combat power. Although they were constantly killed and dropped, the situation of blocking their way did not change slightly, and they actually held up the meal.

At this time, Di Jingfei, who was behind, rushed to the rear and met the enemy cavalry that entered the formation. He saw him take the lead, and his spear swings like a dragon, and he picked up four or five Guirong cavalry on the way forward in one breath. His powerful aura scared the other Guirong cavalry and hurriedly asked to the side.

But in a blink of an eye, several strong men with leather armor were rushing up in front of him. The first one was Bo Chishu, who had suffered losses in the Pioneer Fortress at Xiao Chengzhi. Now he is even more eager to atone for his sins. Seeing that an enemy blocked his way, he took the lead in meeting him without saying a word. He slashed his sword in his hand and intersected Di Jingfei's spear heavily. Not only did he stop at all, but he rushed forward again, extremely fierce.

It was also under his encouragement that the Gui Rong generals were all able to kill each other. They did not hesitate to face the obstruction of the cavalry and continued to rush forward again.

Faced with their fierce offensive, these hundreds of cavalry could not stand it anymore, and people kept getting caught because of it. A line of defense that had just been built was torn apart and was about to be rushed into it by the enemy again.

But at this time, with the time the cavalry had won, another line of defense had appeared. And this time, it was no longer a hasty human wall, but a formal and neat shield defense line, with spears constantly emerging behind it, pointing to the enemy cavalry who were taking advantage of the situation to kill.

"Thorn!" Shen Chongshan, who was behind the team, roared angrily, and he was almost rushing forward with a spear to stop the enemy.

As the real commander of the Youzhou Army, he felt so frustrated. Since the beginning of the battle, his troops and horses were passive everywhere and were attacked from both sides. As the main general, he could not rush to the front line like Di Jingfei and the others. Many times, even command power was in Sun Bi's hands. This sense of powerlessness was like a ball of flame, constantly burning in his heart and burning again.

It was not until the situation became worse and it was obvious that the rear had to add another commander, so he was able to bring people to reinforce him again, and then he decisively set up such a line of defense.

This line of defense did have an immediate effect. The Gui Rong people who killed the cavalry of the time traveled through the army rushed forward and hit the dense shields. Although they made the shield players fall to the ground, their momentum is reduced, and they also give the spearmen behind the scenes a chance to attack.

Accompanied by the roar of the heavy mountains, spears like forests stabbed out densely, and the enemies in front of them were screaming and screaming.

At the same time, the defense of the entire Vietnamese army began to change, and the shields and the defensive formation of the spear formation began to be used in large quantities. When the enemy could not fully rush up, their offensive was blocked, and the Vietnamese army was able to gradually stabilize their position and take the opportunity to launch some small counterattacks.

Sun Bi was in charge of the central army and was naturally calm when he received such news. However, he also understood that this was only temporary after all, and that the enemy would fall into a melee for quick battle. As long as they were given time to quickly get out of the battle and then form an offensive, the subsequent battle would be completely different.

So he had to find another strategy, at least find a stable position. In this way, he was in the wilderness and faced the attacks of the enemies in front and behind for a while, even if he could hold on for a while, the end result would probably be the end of annihilation after a day or two of the battle.

What's even more terrible is that they have already penetrated deep into the hinterland of the grassland and cannot even withdraw their troops. After all, tens of thousands of troops, only 20 to 30% of the cavalry, and the rest of the infantrymen who have to rely on their feet to rush.

"Master, over there..." A general suddenly pointed to a faint black dot on his right hand and shouted. Obviously, this person was also considering the next response. After looking around, he seemed to have found a life-saving straw.

Sun Bi hurriedly looked at it closely. After seeing clearly that the black spot was actually a hillside that was not too high, he suddenly felt excited and immediately ordered: "Retreat to the right, and the whole army retreated to the right!"

The whimpering horn sounded, leading the entire army to move to the right. Tie Lezhen, who was still fighting in the Vietnamese army formation, also noticed their intentions and felt a stern. Once the Vietnamese army was really allowed to go up the mountain, the threat from their own cavalry would be much less.

Therefore, it is necessary to mobilize troops to stop it. But the problem is that he, the commander of the enemy, is in the enemy formation, and other tribe leaders and generals of various tribes have always been in the habit of Guirong fighting, and they also lead by example. At this time, they cannot even pass on the news and change the tactics.

This perception made Tie Lezhen very impatient and was unwilling to get more entangled with Xiao Chengzhi. After several swords forced the other party to take two steps, he quickly turned around and rushed back.

But at this time, Xiao Chengzhi was reluctant to let him go, so he immediately roared again, swung his halberd to kill him, and the short halberd took him straight behind him.

Unexpectedly, it hit the opponent's thoughts. It was already under Tie Lezhen's plan. He knew that the opponent in front of him would not stop, so he pretended to leave. When the opponent rushed over, he turned sideways. While avoiding the halberd attacking from behind, he turned around and slashed towards Xiao Chengzhi's chest with a knife.

Xiao Chengzhi was caught off guard and hurriedly changed his moves. Another short halberd that he had to sweep was immediately retreating to the stand, but unexpectedly, the other party changed his moves again, changing to sweep to slanted, and now he really couldn't adapt to it.
Chapter completed!