"History of the Han Empire: The Family of the Yuan Dynasty" records: "...... Yuan Gong broke the dragon city, went alone, rejected the right Xianwang with soldiers, and blocked the north bank of the Yellow River in order to fight at Yanmen Pass. Pingdan, the Huns arrived, fought fiercely until the afternoon, and broke it. The Youxian Wang's troops were killed and wounded, and the king hated himself, and killed himself in the chaotic army, and the remnants died in the north. The prestige of the Han army was greatly enhanced, and Shan Yu was afraid, so he went to the northwest to slaughter the king's department to avoid its edge. Yuan Gong had few soldiers, and Longcheng was difficult to defend, so he retreated to the south of the Yellow River and guarded the Hetao. Two days later, Yanmen Pass was victorious, 100,000 Hun cavalry were gone, and the two kings died and fled. After the war, the Hetao grassland to Yanmen 300 miles of land, returned to the Han soil. The Han-Hungarian offensive and defensive turned around, and since then it has been ....... ”

The brief narrative of the history books, it is naturally difficult for future generations to know the wonderful, those buried in the dust of history of the sword and sword, the fierce ambition, those Jin Ge iron horses, passionate feelings, only those who have experienced it can be deeply remembered, passed on to future generations by word of mouth, leaving an immortal legend.

After the death of the Xiongnu Youxian King, while cleaning the battlefield, the Black Eagle Army captured the golden knife of the Xiongnu Shan Yu, and Yuan Zhao gave it to Nie Sheng in recognition of the great contribution made by the Nie family in this war. This knife, Yuan Zhao jokingly gave it a name, called "Falling Grass". Although Nie Sheng didn't understand what the big truth was, he still respectfully invited him to go home and find a master craftsman to engrave these two words on the handle of the knife for future generations to admire.

The wolf tooth barbed wire from the Changle Plateau smelting workshop, as well as the thistle terrestris, were regarded as treasures by the soldiers of the Black Eagle Army. It turns out that these things can play such a huge role in the grassland! Even if the brave Huns are thousands of troops, it is difficult to march in front of them, which can be called a sharp weapon to deal with the charge of the Hun cavalry on flat ground. They played a crucial role in the victory of this Battle of Dragon City.

The 3,000 Black Eagle Army paid a very small price against the 30,000 elite cavalry of the Huns, and achieved the greatest result, destroying most of the enemy who went south to support, and the rest were repulsed. It provided a safe backing for the final decisive battle between the Han army and the 100,000 Hun cavalry outside Yanmen Pass. It can be said that it has made great contributions and is the key to the complete victory of the Henan Campaign.

At the same time that King Youxian was killed and his army was wiped out, and the Xiongnu regrouped their men and horses in the north, intending to look south again, the battle of Yanmen Pass was also coming to an end.

On the battlefield nearly 100 miles north of Yanmen, there was a tragedy just after the end of the war. It was one of the fiercest battles the Han Dynasty had fought against the Xiongnu in years, and it surpassed any previous one in terms of scale and intensity.

The cavalry led by King Yelu and King Zuoxian were all warriors among the Huns, brave and strong, and had very strong combat effectiveness. Under the hard support, the defenders of Yanmen Pass suffered heavy casualties, and they were almost unable to withstand it. If it weren't for the Black Eagle Army's race against time to arrive at the fastest speed, they might have been driven straight by the crazy Hun cavalry to break through the defensive line.

The reason why the Yanmen Han army was able to hold out for so long was not only because of the encouragement of the veteran Li Guang, but also because Huo Quai, who had not recovered from his health, led his cavalry to attack several times and killed several charging Hun commanders, which slightly dampened the enemy's spirit and allowed the Han army to breathe.

It can be said that Wei Qing's 20,000 Black Eagle Army came at the right time. Their horses' hooves didn't even stop, and they were wrapped in a murderous aura and directly divided into two armies on the left and right to kill the enemy camp.

The Hun cavalry besieging Yanmen did not receive news from the north, so it can be said that they were ignorant of the earth-shaking changes that took place behind them. Seeing that the Han army was about to hold on, they were greatly increasing their confidence, and under the encouragement of the two princes and generals, they dreamed of breaking through Yanmen and going straight to Chang'an.

The surprise attack occurred when the Xiongnu front army was in a fierce confrontation with the Han army, and the Yelu royal cavalry, who stayed in the camp to rest in turn, suffered a fatal blow without any defense.

The burning of the company camp was originally the specialty of the Black Eagle Army's surprise attack, and the thick felt tents of the Huns were a good target for the fire attack. The long grass in winter is unusually dry, but it is a good material for ignition, coupled with the first batch of rocket fire, when the Black Hawk Army's horse's hooves have not yet stepped into the enemy camp, by the wind, there are already fireworks and panic shouts.

The 20,000 well-trained Black Hawk Army, led by the chief general Wei Qing and seven leading captains headed by Cao Xiang, began a flexible and mobile operation. Interspersed, rushed, divided, encircled, annihilated ......!

Only at this time can we truly see the difference between a hundred strong armies and reckless and brave troops. The strength of the Hun cavalry is difficult to resist in the case of ten thousand horses rushing into battle, and when it is now in a panic and passively beaten, it is only left with the fate of being slaughtered.

Although the 20,000 brave soldiers of the Black Eagle Army had just won a great victory in capturing the Hetao grassland, they were not satisfied. That kind of victory came too easily, the blades of many soldiers were not stained with the blood of the Huns, and the experience of these days was just a long-distance gallop back and forth, although these were all for the needs of the final decisive battle, but the heart was always unhappy.

Now, you can finally let go and kill! The eagle finally pounced on the wolves. Thousands of Huns fled before their eyes, or resisted bravely. Where the long knife goes, the crossbow arrow is cold! The magnificence of life bloomed at this moment, and death and blood began to flow everywhere.......

The 20,000-strong black cavalry turned into a giant wheel controlled by death, rolling over the long grass, over the camp tents, and over everything in front of them. In such a comparison of strength, even if the Huns are brave and fearless, they will be afraid of death. Amid the blazing fire and shouts, the frightened horses scattered and fled, and the Hun cavalry, who had no time to put on their horses, fled like prey to the front position. There are still tens of thousands of troops of King Zuo Xian who are fighting against the Han army, and if they flee there, they may have a chance to live.

In the panic of life and death, the prince who commanded tens of thousands of troops was no different from ordinary people. However, King Jerod was more unlucky. Under the protection of more than 100 tribal guards, he hurriedly climbed on horseback, and when he was about to break through the camp, a black eagle army happened to kill him, and he was the first general, with a broad ape arm and a big knife on his back, which was Gongsun Ao.

Gongsun Ao was on the Han-Hun battlefield for the first time, but his luck was also against the sky. Although he didn't know who the person in front of him wanted to escape under the protection of the mink brocade soldiers, he must be an important figure in the Hun army looking at this posture. Where can he get away! Stay, of course.

Gongsun Ao's bravery, in the later Black Eagle Army, ranked as a famous general, and Gongsun Rongnu, known as "Gongsun Shuangjie", are all famous generals in the world. At this time, he was just a lieutenant, and it was the time when he was eager to make a contribution. At the moment, there was a loud shout, and the knife was chopped.

In a scuffle, although the Hun cavalry guards fought desperately to protect King Yelu to break out, they still failed to do so in the end. These Hun warriors withered under the crossbow arrows and charging of the Black Eagle Army, and King Yelu saw that there was no hope of escaping, so he committed suicide with his sword, and then was cut in two by Gongsun Ao, who was rushed to him, and cut off his head and hung under his horse.

When they heard the last few Hun guards shouting "Lord Wang" loudly before they died, Gongsun Ao and his soldiers knew that they had just killed a Hun king in a daze, and after a huge surprise, they excitedly raised the head with their knives, while shouting loudly, "The enemy chief gives the head!" While rushing forward more bravely.

Originally, some Hun cavalry who were still resisting saw that even King Yelu was killed, so what are they fighting for here? Run, run for your life! The defeat was like a mountain, and a swarm of cavalry led the crowd to the place where King Zuo Xian was fighting.

King Zuo Xian just received the news, saying that the camp was in turmoil, there was a surprise attack by the Han army, looking at the fire, he was shocked, and he didn't have time to send men and horses to support, only to see countless Hun defeated soldiers fleeing in embarrassment. At the fireworks not far behind, with the shouting of killing, the cavalry of the Han family wearing black robes had already opened the way with crossbow arrows, and they were killed all over the slope. The Huns suffered from the enemy on their backs, and they were all discolored.

At the same moment, the thunderous war drums sounded on the position of the defenders of Yanmen Pass, who had received the news from the secret spies of Xizuo in advance. Seeing that the reinforcements had finally arrived, General Fei Li Guang gathered all the archers who could be mobilized, and the feather arrows began to shoot in the direction of the Hun cavalry on a large scale like raindrops.

The men who had been selected long ago to dare to fight, with shields in one hand and swords in the other, rushed out of the positions that had been held for many days, and under the cover of feathered arrows, they formed a phalanx and began to rush forward. The leader is far ahead, a red-robed young general, the champion of Pear Flower Spear, Red Fire Sword, and Dragon Horse! Behind him, hundreds of horses followed, showing off their might, like sharp arrows, stabbing straight ahead!

Huo Qubing could have recuperated in Yanmen Pass with peace of mind until the end of this battle. As the winner of the first battle, she broke 10,000 horses and captured the Aries King alive, and her credit is already big enough.

However, she still came with a hundred cavalry under her command and came to the front line of the battle. Because here, she could hear the latest news coming from the grasslands to the north. Although she was absolutely assured of Master Yuanzhao's safety in her heart, she still had to be the first to hear the news of his victory, and she couldn't wait a little longer!

After several days of fighting, her still weak body was very tired. However, at this moment, through the tens of millions of Hun cavalry in front of her, in the distance, when she finally saw those familiar black robes and black eagle banners waving in the wind suddenly appear from the fireworks, her eyes bloomed brightly.

The four hooves of the dragon horse are galloping, the pear flower gun in his hand is facing the wind, the huge red tassel is stretched, and the cold light is shining all around. What she wants to do most now is to kill the thousands of troops in front of her in one go, to the north, to the north, and then to the north...... She is going to the Hetao grassland, to the bank of the Yellow River, to meet him!

Eighty miles north of Yanmen Pass, the Han-Hun war, one day and one night the beacon fire continued day and night, the next day dawned, the Huns 100,000 cavalry completely failed, and the dead pillowed innumerable. King Yelu conferred the head, and King Zuoxian was spared only with his body. The Han army's victory in Yanmen ......!

So, just when the news of the victory of Hetao and Longcheng had just arrived in Chang'an, the latest news of the victory set off with the flying horse starry night.