"Your Majesty, the reinforcements from Ulzhou City will arrive here in half a day!"

"Hmm." After listening to the report obtained by the Transfigurant Warr using the Flying Eagle Scout, Li Nan nodded and ordered: "Fight quickly, and the battle must end within two hours!" ”

The generals received the order and hurriedly accelerated the attack, and finally solved the 5,000 gold reinforcements within the scheduled time.

Then it was time for the Imperial Engineer Regiment to show their skills, they skillfully and quickly bury the corpses, restore the damaged places on the battlefield, and remove all kinds of traces, trying to make the later Jin reinforcements unable to see any flaws.

The Jin State did have an army of nearly 400,000 troops, but after being scattered in the dozens of cities stationed on the line from Zhongdu to Datongfu, it was also diluted a lot.

Whether it is the defender of Datong Mansion City or the general of Ulzhou, their first priority is to ensure that the important town they are stationed in is not lost, so there are not many reinforcements sent, and only about 4,000 people from Ulzhou came.

The Imperial Army's plan to encircle and send reinforcements was very successful, and the battle annihilated the 3,000 defenders of Hunyuan without much effort, and then wiped out the reinforcements of Datong Province and Ulju with 9,000 men.

The battle loss of 12,000 people is definitely not a small amount, even Wanyan Zongbi, who has an army of 400,000, can't bear such a loss, but he can't do anything about it.

This is the sadness of the defenders, especially the long defense line of the gold country that is currently stretched on the front.

The imperial army can use heavy troops at any time to choose any city on this line of defense to attack, but the Jin side can only defend passively, and if you rescue, you will be worried about being eaten by the enemy, and if you don't send reinforcements, the defenders in the city will be annihilated, and if you choose to attack out of the city, you will lose the defensive advantages such as walls and ditches, which is simply in a difficult situation.

The imperial army under the command of Li Nan did not give Yan Zongbi time to think of countermeasures, and the major army corps attacked one after another, and within a few days, except for Datongfu City, Ulzhou City, and Zhongdu, which were heavily garrisoned by the Jin State, other towns with fewer troops were attacked.

At the same time, the news of the defeat at the front also came back to Shangjing, and after reading the battle report, Jin Xizong was furious.

Today's ministers and nobles of the Jin State are not afraid of anything, they are afraid of Jin Xizong's Wanyan Emperor, mainly because he is really a murderer, and he kills his own people.

Since the elimination of all opposition forces, Jin Xizong has also lived a life of great power, but after a long time, he felt bored, and it happened that the queen Pei Manshi had a lot of insights into political affairs, so he just left it alone and started to enjoy it directly.

The highly distilled liquor developed by the empire has become Wan Yan's favorite thing, and he drinks and has fun all day long, and the wine is extremely bad, and there are often cases of hurting and killing people, and he has gradually become a tyrant.

In the holy decree sent by Shangjing, Jin Xizong severely reprimanded the front-line commander Wanyan Zongbi, knowing that his nephew was ruthless, he immediately and decisively abandoned the capital of Datong and the Zhongdu where he was stationed, and ordered the whole army to retreat and enter the defense line of the Great Wall.

In the eyes of Li Nan and many generals of the Imperial Army, what Wanyan Zongbi did was not a smart decision, because the original 400,000 troops of the Jin State needed to defend the 800-mile front from Datong Mansion to Zhongdu.

The Great Wall was built according to the topography, so it was not a straight line, and when the Jin army withdrew to the repaired Great Wall, it did have a stronger and more cultivated defensive position, but at the same time, the distance of this defense line was extended by two hundred miles.

The enemy retreated and we advanced, and when we saw the retreat of the Jin State, the imperial army advanced rapidly, and the whole line was pressed outside the Great Wall.

Li Nan rode on a horse and looked at the majestic and magnificent Great Wall in front of him, and said with emotion: "In the Qin period, the bright moon and the Han period, the Long March has not yet been returned. But to make the dragon city fly will not teach Humadu Yin Mountain.

Now the Great Wall, which has been built by generations of Chinese dynasties, has become a barrier to prevent my Huaxia from expelling the alien Huma, which is really sad and lamentable! ”

Han Shizhong swore an oath: "Your Majesty needs to be sad, and the minister swears again that he will expel all foreign races in this life and make the world the land of my empire!" ”

When the generals heard this, they also shouted in unison: "May the whole world be the land of empires!" ”

The chanting of these imperial generals reached the ears of the imperial soldiers, and soon the whole army shouted together: "May the whole world be the land of the empire!" ”

"Good! I am so grateful! Li Nan smiled at the tsunami-like cry of the mountain, and he waved his arm to point to the Great Wall in front of him, and said to the soldiers: "Step through the Great Wall and drive out the Tartars!" ”

"Break through the Great Wall and drive out the Tartars!"

"Break through the Great Wall and drive out the Tartars!"

……

The morale of the Imperial army was very high, and after a few days of rest, they began to attack the Great Wall defense line in all directions, as before.

After a few days, the progress was not smooth, and Li Nan and the generals of the empire realized the extraordinary features of the Great Wall.

The Great Wall is the greatest military defense project in the ancient history of the world, but it is not simply an isolated wall.

The real Great Wall is actually from point to line, from line to surface, connecting the passes, military forts, gates and important military towns along the Great Wall into a tight network to form a complete defense system.

To put it simply, the role of the Great Wall is to defend, and its more important role is to give early warning.

In the previous battles, the Jin army was trapped in various towns and cities, and could not take advantage of the mobility of their cavalry.

After retreating to the defense line of the Great Wall, although the Jin State lost important towns such as Datong Mansion and Zhongdu, it also restored the real use of cavalry.

Whenever the Imperial Army broke through the thousand-mile-long defense line of the Great Wall of Jin, the nearby beacon tower would give a warning message, and a large number of elite cavalry of the Jin Kingdom gathered behind the Great Wall would swarm to surround and kill the invading Imperial Army.

When all the tactics on the battlefield are ineffective, all that remains is a hard-fought offensive and defensive battle, and this tactic is also the most tragic.

Kress, who refused to admit defeat, led the Second Infantry Corps of the Empire under his command to capture the Great Wall several times, but was also driven back by a large group of Jin cavalry several times, and other Imperial generals also tried several times, but they all ended the same.

The offensive and defensive capabilities of the Imperial Army are indeed very strong, but it is a pity that in the face of the Jin Iron Cavalry, which also has gunpowder weapons and can gather several times more troops than their own in a short period of time, they can only reluctantly retreat to the south of the Great Wall.

Using this defensive method, Wanyan Zongbi finally stopped his own disadvantage and stubbornly blocked the imperial army from the Great Wall.

When all the tactics on the battlefield are ineffective, all that remains is a hard-fought offensive and defensive battle, and this kind of battle is also the most tragic.

They didn't want the soldiers to attack the city with their lives, so the Imperial Army could only use a large number of artillery to attack from a distance, and the Jin Army on the Great Wall did not show weakness, they used trebuchets and iron artillery to attack the Imperial Army.

The battle has now turned into a war of attrition, a contest of troops, morale, and transportation and supply capacity on both sides.

The national strength of the Jin State is definitely inferior to that of the Empire, their advantage is the distance, and behind the defense line is the hinterland of the Jin State, so it is not a big problem in transportation.

The empire is vast, and because of this, it is quite passive to transport military supplies and food from the south to the front line of the Great Wall in the north.