Although the Yu family army lit bonfires outside the defense line, Jiannu was not a fool, as soon as he rushed out of the darkness, he immediately extinguished these bonfires, making the front of the two armies suddenly become a black patch.

This affected the sight of the Yu family's generals, so that the accuracy of musket shooting immediately became very low, and only an aimless volley of guns could be used to prevent the Jiannu army from attacking the defensive line.

After this night of fierce fighting, Jiannu finally demolished the horse rejection deer fence outside the defense line of the Yu family's army, and crossed the trench that was not too deep several times, and even attacked the low breastwork several times.

At this point in the battle, the soldiers and generals of the Yu family were also anxious, lit a lot of torches on the chest wall for lighting, and started a hand-to-hand combat with the Jiannu army on the chest wall.

Some of Jiannu's archers hid in the dark, and with the help of the torches on the chest wall of the family army, they continued to shoot the soldiers of the family army with cold arrows, causing a lot of casualties to the Yu family army.

And this time, Du Du spared no expense and sent his most elite soldiers, all wearing heavy armor and holding swords and shields, to storm the defense line of the Yu army.

The Yu family army could only resist desperately, and the defense line was almost broken by the Jiannu army several times, but fortunately, the vast majority of the officers of the family army were not afraid of danger, and personally went into battle with their swords, and fought back with the soldiers to the death.

This battle was fought from midnight to dawn, and the battle was over, when the sun illuminated the land again, and then looked at the defense line of the Yu army, it had become a little scattered, and under the breastwork, the corpses of the generals of the two armies were covered everywhere, and some of the wounded were not dead, lying in the pile of corpses and screaming.

The breastwork collapsed in many places at this time, and the frozen chest wall was stained with the blood left by the soldiers of the two armies, which had been frozen into blood ice at this time, reflecting a strange light under the sunlight.

After two consecutive days and two nights of fierce fighting between the two armies, they were a little exhausted, both sides did not get enough rest, and their nerves maintained a high degree of tension.

After Yu Zhenshan's inventory, this night, the Seventh Brigade under his command paid the price of nearly 400 casualties, most of which were knife and gun wounds, and many people were wounded by arrows.

But relatively speaking, Jiannu's casualties were greater, when they attacked the defense line of the chest wall of the Yu family's army, they were frantically blocked by the Yu family's army, and the Yu's army did everything they could, throwing a large number of grenades, and the grenades exploded in the dense enemy group, killing and wounding a large number of enemy generals.

In addition, they fired a volley of guns at night, although it was a blind fire, but it also caused a lot of casualties to the attacking Jiannu army, and the Jiannu army came down this night, leaving at least more than 1,000 corpses in front of the Yujia army, as well as two or three hundred wounded soldiers who were about to freeze.

After dawn, Yu Zhenshan sent people to clean up the battlefield, go down to Jiannu's heads and chop them off, and when they met those who had not yet lost their breath, some of the lightly injured were caught back, and the rest were directly mended with knives to end their lives.

In the morning, Yu Zhenshan ordered to use the heads of Jiannu to pile up a Jingguan in front of the battle, this pile of human heads, there are nearly 2,000, bloody, the face of the human head is extremely hideous, exuding a strong smell of blood.

Du Du at this time, he has completely lost his strength, two days and two nights of fierce fighting, he has not been able to shake the defense line of the opposite Yujia army for half a minute, but he has killed as many as two or three thousand soldiers, and more than 1,000 wounded, some of them have fled back with injuries, they have died, and it is estimated that most of the remaining people will not be able to survive to return to the outside of the pass, which has led the soldiers and horses under his command, and the morale has declined to the extreme, and it is unbearable to fight again.

So Du Du had no choice but to order a retreat of ten miles to camp and send someone back to report to Dolgon, asking Dolgon to send reinforcements to support as soon as possible.

At this time, Dolgon had already led his troops to Jinghai County in Hejian Province, broke through Jinghai County, and plundered again, and suddenly received the news that Du Du sent someone to send it back, which immediately surprised Dolgon.

With Dolgon's considerations, letting Du Du bring 20,000 soldiers and horses over was already a decision he made when he overestimated the strength of the other party, so he thought that Du Du would go on this trip with 20,000 horses, which should be enough to take down Tianjin Wei, even if the Yu family army had more than 30,000 soldiers and horses, they should be swept away.

But he didn't expect that Du Du had been gone for a long time, and he sent someone back to tell him such news, and Dolgon couldn't be surprised, so he quickly asked the person who came back to report what was going on.

So the people who were sent back had no choice but to honestly lead Du Du over, and after two days of fierce fighting, not only could they not defeat the men and horses of the Yu family army that blocked the way, but they were beaten under the insistence of the other party, and their Jiannu army suffered heavy casualties.

The person who came back to report the news focused on the sharp firearms of the Yu family, saying that the Yu family army was equipped with a large number of sharp and abnormal firearms, which could take people's lives 200 steps away, and the Yu family army also had many light and sharp cannons, which were ruthless and accurate, and they were also very far away.

After hearing this, Dolgon was secretly surprised in his heart, so he didn't have the heart to continue sweeping in this area, and hurriedly raised his troops and hurried to Tianjin Wei.

Jinghai County was only more than fifty miles away from Tianjinwei along the canal, and under the acceleration of Dolgon's overseer's march, Dolgon's headquarters arrived in the area of Tianjinwei in only a day and a half.

This time, the Jiannu army marched along both sides of the canal, marching hand in hand, and the Tianjin Wei together, the 100,000 Jiannu army, plus the hundreds of thousands of people who were coerced in the future, stretched for dozens of miles on the road.

After Dolgon led the troops to arrive at the camp where Du Du was stationed, he knew that things were more severe than he thought, and when he entered their camp of Jiannu, he saw that the morale of the soldiers of Jiannu who came here in advance was very low, and in the corner of the camp, there were a lot of corpses, these people were injured and returned to the camp before they died, and there were many wounded soldiers in the camp, screaming and moaning from time to time.

When Dorgon saw Dudu, he shouted and asked what had happened, how the battle had been fought, and why they had lost so badly.

Dudu had no choice but to lament, and told Dorgon the details of his defeat.

When Dolgon heard this, he was furious, and he angrily denounced Du Du for his incompetence, and even if he ordered to prepare for war, he would personally go to meet the Yu army.

On February 23, Dolgon came to the front of the defense line of the 7th Brigade, and observed the defense line of the 7th Brigade from a distance.

Since he started with his father, he has fought no less than 100 battles with the army of the Ming Dynasty, and he can also be said to be a man who has experienced a hundred battles, although they have their own victories and defeats, but on the whole, they still have more victories and fewer defeats, at most, they have suffered a little loss in the battle, and in the field, it is rare to be so despised as today.

There has never been a situation like today, when the heads of their Qing army generals were cut down by the Ming army and piled up into a Jingguan, and when they saw this scene, Dolgon and his generals were suddenly red-eyed.

Dolgon immediately ordered to bring up a group of Ming people from behind, who were about 3,000 to 5,000, and threatened them with swords and guns, gathered in front of the formation, and ordered them to take the lead and attack the defense line of the opposite Yujia army.

The people of the Ming Dynasty who were brought up also saw the Jingguan made of Jiannu's head piled up in front of the defense line of the family army from a distance, and they were all very surprised and relieved, but at the same time, they also realized what Jiannu was going to do, and many people suddenly panicked and didn't know what to do.

Especially when Jiannu ordered them to walk towards the Yujia army front, they understood better what Jiannu wanted them to do, and some people stopped doing it on the spot, Jiannu was forcing them to die! Immediately, the men began to stir up.

Dolgon immediately ordered to pull out some Ming people who were unwilling to come forward from among them, and immediately slashed them in front of the battle, and with a wave of Dolgon's hand, more than 200 people fell in a pool of blood, becoming the souls of Jiannu's sword.

So the rest of the people had to take a slow step and walk towards the defense line of the Yu family's army.

Yu Xiaotian miscalculated the direction of Jiannu this time, originally he thought that Jiannu would take the east bank of the canal to Tianjin Wei, but after the Seventh Brigade and Du Du's department engaged, he realized that the main force of Jiannu should be advancing from the west bank of the canal towards Tianjin Wei, and he put the main force of Yu's army on the south of the Tianjin Acropolis, that is, the east bank of the canal, which made him find that he had made a big mistake this time.

Therefore, after the 7th Brigade repelled the advance led by Du Du of the Jiannu Army, Yu Xiaotian immediately ordered the 1st Brigade and the 4th Brigade responsible for guarding the temporary pontoon bridge ferry upstream to the location of the 7th Brigade to strengthen the defense force there, and at the same time ordered the 9th Brigade to divide its troops to take over the 4th Brigade to guard the ferry, assist the 2nd Brigade to guard the Hedong area and the Tianjin Acropolis, and prevent the soldiers and horses of Jiannu on the east bank from raiding Tianjin Wei and cutting off their back road.

Fortunately, he ordered the Fourth Brigade to use forcibly requisitioned boats upstream to build a pontoon bridge to communicate the east and west banks of the canal, so that the two sides of the strait could be mobilized at any time, which made him complete the adjustment in a day and a half, and with this adjustment, the main force of the Yu family army was also mobilized to the west bank of the canal.

After Yu Xiaotian arrived on the west bank with his troops, he immediately ordered to build another defense line west of the defense line of the 7th Brigade, with the 4th Brigade responsible for guarding and widening the width of the entire defense line, and the 1st Brigade being placed in the back as a reserve and ready to enter the battlefield at any time.