When the Tang army captured Liaodong, it made rapid progress. The main reason was that Goguryeo had fewer troops in the Liaodong region. Moreover, most of the people in Liaodong are Han Chinese.

In order to preserve its strength, Goguryeo reduced its forces and took the initiative to give up many cities.

After entering the territory of Korea, the Goguryeo people relied on the stubborn resistance of the city, and the progress of the Tang army was much slower.

The main equipment of the Tang army in attacking the city was stone throwers, fire oil and ladders. The characteristics of the cities in Goguryeo are different from those of Liaodong, mainly strong and tall stone cities. The role of the Tang army's reliance on fire oil was much smaller.

In order to prevent the Tang army from burning down the city gate, the Goguryeo people installed a lot of water tanks above the city gate, which effectively prevented the Tang army from attacking the city gate.

The Goguryeo and Tang armies also fought several field battles. The Tang Army's longbow troops and Mo knife formations have strong attack power. The Goguryeo people were backward in weapons and suffered relatively losses.

In the field battle, Xue Rengui showed his might and repeatedly defeated the Goguryeo army, which left a deep impression on Li Shimin.

The Goguryeo people gave up field warfare, and they adopted a new tactic, which was to rely on strong cities and strong weather conditions, combined with the harsh weather conditions of the Korean winter, to wear down the strength and morale of the Tang army.

For the Tang army, which lacked effective means of siege, it did cause great trouble. In this case, the progress of all the coalition forces is relatively slow.

Anju was a western city of Goguryeo and a necessary route for the Tang Dynasty's Eastern Expeditionary Army to attack Pyongyang. The city of Anzhou is built on the mountain, and the terrain is dangerous. The city is strong and tall, and the walls are more than two zhang high. It was garrisoned by 60,000 Goguryeo people led by Goguryeo general Ahn Sung-myung.

The road of the Eastern Expeditionary Army was stopped under the city of Anzhou. Xue Rengui personally went into battle and led the Tang army to attack for five days and five nights, but they were all repulsed by the Goguryeo army, and the Tang army suffered heavy losses.

At this time, Junji had landed with a large army and attacked Pyongyang from west to east. Quangai Suwen mobilized the defenders near Pyongyang and laid siege to Hou Junji's troops with all his might.

If the Eastern Expeditionary Army could not break through Anju as soon as possible and reach Pyongyang, the army of Hou Junji would be in danger of being annihilated. Li Shimin was very anxious and ordered the Eastern Expeditionary Army to attack the city with all its might.

However, the terrain of Anzhou City was dangerous, and the Tang army could not be used. The Flying Tigers are used to carry out the mission of interspersed surprise attacks, and attacking fortified cities is not their main task.

However, Li Shimin was anxious and ordered the Flying Tiger Army to also participate in the siege.

On this morning, the Flying Tigers launched a fierce attack on the city of Anzhou. The Flying Tiger Army is strong in combat and has a fierce offensive. However, the Goguryeo people relied on the tall and strong city walls and desperately held on. The Flying Tigers failed in their first attack and lost a captain.

Du He was in a hurry, and he personally participated in the siege. Under his command, the Flying Tiger Army desperately moved forward and came to the city of Anzhou. They erected the ladder, and Duhe himself went into battle.

Du He held a horizontal knife in his mouth, held a shield in one hand, and climbed up the ladder with the other. He climbed fast, quickly approaching the battlements of the city walls.

A Goguryeo soldier slashed at Du He with a long knife, but Du He blocked him with a shield. Duhe threw away the shield in his hand, held the horizontal knife, hacked the famous Goguryeo soldier to death with a single sword, and then stepped on the battlements.

At this moment, four Goguryeo soldiers armed with spears and stabbed at Duhe in unison. At this time, Du He had one foot on the battlements, and one foot was still on the ladder. He couldn't dodge, so he had to jump off the ladder. Fortunately, he stepped on the body of a soldier who had died in battle and was not injured. The second attack of the Flying Tigers failed again

This scene was looked at by Princess Yangcheng, and she couldn't help but lose her face. Her heart was beating to her throat, and she almost fainted. Fortunately, she saw Du He stand up again, and she breathed a sigh of relief.

Princess Yangcheng came to Li Shimin and begged him to stop Du He from continuing the siege. Li Shimin was ruthless and refused her request.

Duhe rested for a while, regrouped his forces, and prepared for the third siege.

Princess Yangcheng came to Du He, saw that his right arm was oozing blood, and asked worriedly, "Du He, are you okay?" ”

Only then did Duhe realize that he had been wounded during the siege. In order to appease Princess Yangcheng, Du He pretended to smile lightly: "It's okay, it's a little injury, it's not hindered at all." You see. ”

said. He deliberately moved his shoulders.

Princess Yangcheng wanted to stop Du He from continuing to attack the city, but she also knew that Du He, as a commander, must take the lead. He couldn't do that.

Princess Yangcheng held back the worry in her heart, and said with tears in her eyes: "Duhe, be careful. ”

Du He nodded, and shouted to the soldiers of the Flying Tiger Army: "Brothers, follow me." As he spoke, he took the lead and rushed towards Anzhou City.

Princess Yangcheng looked at the head of Anzhou City, the swords and guns of the Goguryeo people, and wondered if Du He would be able to come back safely this time. Princess Yangcheng bit her lip tightly and looked at Du He's back with tears in her eyes, and her heart was pinched together.

Just when Du He led the Flying Tiger Army and was about to rush to the city of Anzhou, an order to withdraw his troops suddenly came from behind him.

Duhe didn't know what was going on, but the military order was like a mountain. He had no choice but to withdraw with the soldiers of the Flying Tiger Army.

Du He and Wei Chi Baoqi came to the command headquarters, only to find out that it was Qin Huaidao who came from Chang'an.

Qin Huaidao and Du He are also teachers and friends, and the two were very surprised to meet. Du He asked, "Huaidao, why are you here?" ”

Qin Huaidao said: "Brother Du, I am here to help you attack the city on the order of His Royal Highness the Prince. His Royal Highness the Crown Prince has asked me to greet you. ”

Du He was very happy and asked, "How is His Royal Highness the Crown Prince?" ”

Qin Huaidao said: "He's very good, but he can't rest assured of you, he asked me to tell you, as a commander, don't go into battle in person, if you have a little injury, he will be with you all the time." ”

Du He's heart was warm, and his eyes were moist.

Soon, Li Shimin, Li Jing and others held a military meeting and redeployed the plan for the siege.

With a high-pitched trumpet, a new round of offensive of the Tang army began.

After six days of defensive operations, the Goguryeo people were also very tired. Seeing that the Tang army had begun to attack again, they had no choice but to cheer up and prepare to fight with the Tang army.

The Goguryeo people saw that the Tang army's preparations for the attack were no different from before. The only difference was that behind a lot of tall wooden shields, a lot of carriages appeared.

The Tang army advanced to a distance of about 100 meters from the city wall, then stopped, and did not advance anymore. The Tang army built a barrier with Mu Dun, as if he was tinkering with something behind.

The Goguryeo people saw from a distance that the Tang army was unloading something from the carriage. But the distance is relatively far away, and it is not clear to see.

About half an hour later. A crack was opened in the wall of the wooden shield of the Tang army, revealing a row of black things.