Xiahoudun brought 10,000 soldiers, and Cao Cao's army has always defeated the strong with the weak, and they are all used to it. Therefore, they do not care about the small number of their army, and they are very confident of victory.

Before leaving, Xiahoudun got Xun Yu's guidance and did not go directly to rescue Cao Ren. Instead, he entered Xuzhou from the direction of Pengcheng County, and implemented the strategy of encircling Wei and saving Zhao.

Xu Rong took a look: It's useless to keep Cao Ren, so let's eat him.

So 50 trebuchets were transferred from Kaiyang City, surrounded by three missing one, surrounded Cao Ren's camp, and lined up three hundred meters away.

This time they threw not stones, but clay pots. The clay pots filled with fire oil kept being thrown into Cao Ren's camp, shattering to the ground, and the fire oil flowed everywhere.

Cao Ren and the others also saw fire oil for the first time, and they didn't know the effect of fire oil, but they just felt pungent. They all clenched their bows and arrows, and waited for the Xuzhou soldiers and horses to approach before they could shoot.

However, Xu Rong's soldiers and horses did not come close, and when the first batch of oil canisters was thrown, they used several bed crossbows brought from the city to shoot crossbow arrows. The bolts were wrapped in strips of cloth soaked in fire oil, which had been ignited and shot into Cao Ren's camp.

If these crossbow arrows could not ignite the fire oil in the camp, Xu Rong planned to let the Kaiyang soldiers approach the camp to shoot rockets. Even if some people will be sacrificed, it doesn't matter.

Luckily, these bolts had already ignited the oil flowing in Cao Ren's camp. Fires erupted.

The 50 trebuchets of the Xuzhou army began to throw a second batch of oil canisters to fuel the fire.

The camp of Cao's army was suddenly in chaos, people shouted and horses screamed, and soldiers ran around like headless flies. Those who are wise run to the gap that is left behind.

Cao Ren couldn't stop drinking and couldn't organize an effective counterattack. had no choice but to take his own soldiers and escape with Li Dian and Le Jin.

The Liaodong Iron Cavalry began to pursue behind. Zang Ba also took 10,000 Kaiyang soldiers to chase and kill behind Cao Jun, and let out a vicious breath.

Cao Ren fled all the way, and Xu Rong chased and killed all the way.

By the time Cao Ren fled to Pengchengguo and met Xiahoudun, there were less than 5,000 men left. Fortunately, the 1000 tigers and leopards rode almost without loss, and they are still there.

Xu Rong took in the people and entered Xiapi City. Zang Ba, on the other hand, returned to Kaiyang City, cleaned up the battlefield along the way, and buried the dead soldiers on both sides to avoid causing the plague.

Xiahoudun joined forces with Cao Ren and came to Xiapi City to retaliate.

Xu Rong will have few generals and refuse to fight. Just defended the city with 10,000 infantry, and 20,000 Liaodong iron cavalry rested in the city.

Xiahoudun wanted to divide his troops to plunder the four townships of Xiapi County, but was stopped by Cao Ren, but he knew that there were Liaodong iron cavalry, and what would be the result after dividing the troops.

After two days of repair, Xiahoudun and Cao Ren began to attack Picheng again.

In ancient times, the siege of the city was the same as before, and it was a great disadvantage for the besieging side to let the soldiers climb up the city like ants.

There is a horse-faced wall in Xiapi City, which can shoot Cao Jun from the side. This in turn increases the difficulty of the siege.

On the front, the Xuzhou army shot at the Cao army in the distance with a bed crossbow, and shot at the Cao army at a close distance with crossbow arrows and bows. He also boiled and watered with gold juice, and used fire oil to burn the siege ladders of Cao's army and crash into wooden carts.

In short, the various routines of Cao's army attacking the city are targeted solutions.

Xiahoudun attacked several times, but he was unsuccessful, but lost his troops and lost thousands of casualties.

Although the Xuzhou army also suffered losses, as the defenders of the city, their losses were only one-fifth of Cao's.

Xu Rong waited for a few days to make sure that Cao Cao would not send any more reinforcements, so he decided to give Xiahoudun to him.

When Cao's army failed to attack the city again and began to retreat. The city gate of Xiapi City opened, and a large number of Liaodong iron cavalry rushed out from the three city gates. These Liaodong soldiers and horses rushed towards Cao's army from three directions.

First, a wave of crossbow shots, and crossbow arrows rained down on Cao's army, who had no shield protection. Then, the Liaodong iron cavalry hung the crossbow on the saddle, took off the Xiangyang iron knife, and pushed it flat in front of the war horse, relying on the speed and momentum of the war horse, and pushed Cao Jun flat.

The sharp Xiangyang iron knife cut through all obstacles, whether it was Cao Jun's weapons, or the human head or body, all of them were pushed in two sections.

Cao's army was in the process of retreating, there was no dense formation, and it was very scattered. It is just suitable for the charge of Liaodong's high-headed horses, and there is no obstacle at all. A steady stream of Liaodong iron cavalry rushed up, and even the Cao army, who was lucky not to die, was trampled to death by the Liaodong war horses behind.

On the plains, the cavalry is king!

Cao Ren's 1,000 tigers and leopards did not dare to meet them, they were too few in number, and if they met them, they would be surrounded, drowned, and then wiped out.

They chose to guard Cao Ren, Xiahoudun, and Li Dian; Lejin escapes.

From Kaiyang to Pengcheng, none of the 1,000 tigers and leopards lost a single horse, which shows that they are already very good at escaping.

In front of the 20,000 Liaodong Iron Cavalry, there is no place for personal martial arts. At this time, no one will fight with you, no one will fight with you! If you dare to stop, there will be dozens, hundreds of Liaodong iron horsemen rushing up, and a group will pick you alone!

Cao's army was defeated and began to flee again. Who gave them the courage to come to Picheng to challenge? They thought Xu Rong would fight with them alone?

Xu Rong led 20,000 Liaodong iron cavalry to chase and kill all the way, and there were many bones along the way. The old rule, don't take prisoners, just kill!

Xiahoudun, Cao Ren and others ran back to Yanzhou in one go. Xu Rongcai let them go and returned to the city victoriously.

In a big defeat, Cao's army suffered more than 7,000 casualties, plus casualties during the siege, and the Cao army returned to Yanzhou with less than 5,000 people.

Two troops of the Cao army, a total of 30,000 people, came to attack Xuzhou, and less than 5,000 people returned alive! It's a huge loss! And the losses are all Yanzhou elite soldiers, not the miscellaneous soldiers of the Qingxu Yellow Turban Army.

Cao Cao received the battle report and died of heartache! He was so angry that he scolded: "Gongsun boy! Xu Rong! I will kill you! ”

Xuzhou soldiers and horses also suffered heavy casualties, and according to statistics, there were about 10,000 dead and wounded. The main damage was outside Kaiyang City, where Zang Ba killed and injured more than 5,000 old brothers who had followed him for many years. All other battle losses occurred while defending the city.