Five Dynasties River Mountains Fengyue

"The terrain here looks good." On the banks of the Gushui River, Emperor Shi led the crowd to a high ground east of the river.

Looking north from here, there are stretches of mountains with ravines. This is still part of the Yanshan Mountains. The road to the north is not easy to walk, but the mountains here are not as steep as the Daba Mountain in Shu, and the trees are not so Lush, on the avenue at the bottom of the valley, a large group of cavalry can still easily go south along the valley.

Looking to the east, there are winding Great Walls everywhere on the mountain. The high walls stretch and twist along the mountain ridge on the ridge. Some of these walls look relatively new, the bricks and stones are still blue, and the weeds are not so dense , those were built after the Sui and Tang Dynasties.

Some are very old, with dilapidated female walls, and the color has become lighter after being exposed to wind and sun. At first glance, they are city walls built during the Northern Qi Dynasty.

Looking to the west is Gushui. The Great Wall on the west has been stretching among the mountains. It is not clear how long it is. The east end extends to the edge of Gushui. There is a tower by the river.

On the east bank, there is a square and tall tower guarding the riverside avenue, but now the east tower has been abandoned. The Liao Kingdom demolished the city gate and opened it wide.

It is true that for the Liao Kingdom, the Great Wall here is useless, but will become an obstacle for them to go south. If it is not time-consuming and labor-intensive, they might want to tear down all the city walls.

This section of the Great Wall is called Beikou Great Wall. The army of the Liao Kingdom had to pass through here if they wanted to go south to Tanzhou. Since the Northern Qi Dynasty built a city wall here, their cavalry could not climb the wall and could only enter and exit through the Guancheng on the avenue.

Now the Guancheng is useless and dilapidated, and there is no military camp in the north of the Guancheng. The Tang army was stationed on a gentle slope in the southeast of the Guancheng more than a hundred years ago. Except for some ruins, there is not much left. For other traces, the surrounding shrubs are shorter than the surrounding ones.

The vicissitudes of history are buried in this barren land. Since the end of Tang Dynasty, this land has been set foot by the southern regime for the first time.

Emperor Shi looked at the terrain here for a long time, rode eastward for several miles in the morning, crossed Gushui in the afternoon, walked along the Great Wall in the west for a long time, and finally came to a conclusion that although the main part of the city walls was built during the Northern Qi Dynasty, But its role is still very large.

Such a Great Wall is not what most people imagined. It only works when a large number of people are stationed. It serves as a combat fortification, which is analogous to a city wall.

In fact, this logic is wrong. The length of the Great Wall is horrific. The Northern Qi Dynasty and the Sui and Tang Dynasties alone built this section of the Great Wall at the north entrance, which is hundreds of miles long. If you want to use the Great Wall as a city wall for a long time, this is the key In a short section, stationing a hundred people per mile requires a huge army to station, and logistics is even more terrifying.

Some important passes of the Great Wall can indeed be used as permanent combat fortifications to station large troops.

However, most of the city sections are only used as sentry towers, with a small number of people stationed there to monitor and transmit the movements of the nomads at any time.

However, its most important purpose is to change the marching route of the nomadic army and create a strategic advantage.

The mountains in the north are different from the mountains in the southwest that are full of cliffs at [-] degrees or even more than [-] degrees. The mountains are high and the valleys are deep. …

The vegetation is not so dense, and the terrain is not so dangerous. When a large number of nomadic cavalry go south, many mountains and hills can be crossed by horses, but at a slower speed.

Because of this, they actually chose many marching routes, and they wanted to go south very quickly and freely.

But after the Great Wall came into being, it was different. Emperor Shi caressed these ancient bricks and stones, just like the Northern Qi Great Wall, which is hundreds of miles away. The wall stands here and stretches for hundreds of miles. Even if no one is guarding it, it is impossible for the large-scale troops of the Liao army to cross it.

A horse that weighs nearly a thousand catties will definitely not be able to turn over such a wall. If people do not wear armor, there may be a few skilled people who can turn over, but it is wishful thinking to say that sending a large army over.

This is the greatest function of the Great Wall. Without the Great Wall built by the Northern Qi Dynasty, the Khitan people would not have to take the road when they went south. The mountains on the east and west sides of the north entrance are not high, nor are they very steep. There are Taos all over the mountains and plains.

With this Great Wall here, even if there is no one guarding the top of the city, even if the Great Wall has been abandoned for many years, most of the Liao army must go south to close the North Gate. Walk down the river valley and go south to Tanzhou.

This is the greatest strategic significance of the Great Wall. It can completely change the enemy's marching route, so that the troops moving from the north to the south must gather at certain fixed passes, and allow the defenders to predict the route.

Otherwise, on the long boundary of hundreds of miles, who can guess where the army going south from the north will cross the mountain.

After all, it is the Great Wall that was also used in the Sui and Tang Dynasties. There is no big break on this Great Wall, and it is very well preserved. Near the Beikou Pass City, the Liao people demolished the pass gate and abandoned the tower, because the pass gate here is very wide. The tower was demolished.

Emperor Shi, Li Chuyun and other generals studied on the spot for a day, and concluded that Guancheng does not need to be repaired, and it is not their main support there.

They want to set up three lotus forts in the rear, and form a vertical "pin"-shaped structure on the river valley to the south of Guancheng and the hillside to the east to block the Liao army.

This arrangement is the opinion of Emperor Shi, which is similar to the deployment of the hollow phalanx in the Battle of Waterloo, mainly for the formation of crossfire, so that each fortress can support each other with firepower.

The second is to set up two forts by the river, so that ships along the river can support the forts, deliver supplies, replenish personnel, evacuate the wounded, and the like.

Letting the Liao army pass the north entrance is the main strategy. The north entrance is not wide, and their people cannot be deployed, and the Qin army cannot deploy too many people.

Therefore, Shi Congyun's strategy is based on the Lianhua Fort at the front of the north entrance, connecting Tanzhou in the rear, and Shunzhou to form a line of defense and supply.

On the overall front, there are still Juyongguan in the west, and Xingzhou, Yingzhou, and Yuguan in the east to defend. Once the Liao army concentrates its forces in one place, the other two will quickly break through to the north.

If they disperse their forces, it is very likely that they will not be the opponent of the Qin army on the three roads.

A day ago, Emperor Shi also sent an urgent military order to Xiang Xun who was still attacking Yunzhou, asking him to suspend the attack if the edict had not captured Yunzhou by then, and move his troops to the east to move closer to Zhuozhou and Juyongguan. Be ready to support Guo Jin, Yang Jiye, and Li Jilong at any time, and be ready to deal with the possible counterattack of the Liao army. …

If the Liao army did not counterattack from the Juyongguan area, they would not have to rush to attack Yunzhou, but instead detoured to the northeast and attacked Xi Wang Yazhang behind Yanshan Mountain.

Three days later, the site selection of the Lotus Fort was completed, and a large number of craftsmen began to work. In the river and on the avenue, Qin soldiers, horses and boats were everywhere.

There is only one Beikou village near Beikou, with [-] families, all of whom were forced to move south temporarily.

On the same day, good news came from the east. Lin Renzhao's army had captured Pingzhou and Yingzhou and was marching towards Yuguan.

Emperor Shi breathed a sigh of relief, and at the same time felt more confident.

At this point in the battle, they are completely proactive in their strategy. No matter whether the Liao Kingdom dares to go south or not, they will make a sure profit.Because a large piece of land south of Yanshan Mountain has been won.

Not so for Ye Luxian. He has almost no choice. Even if he is afraid, it will be difficult for him to stabilize the regime first and recharge his energy before fighting the Qin army.

The land was lost, and his position was unclear. If he dared not send troops, if he allowed the Qin army to capture their core territory, even if the foreign enemies did not do anything, many internal opponents would jump out against him.

For Emperor Shi, if the Liao army wanted to go south on a large scale, they would have to go to the northern mouth of Chanzhou, where hundreds of miles of the Northern Qi Great Wall stood, unless the Liao army really had the time and energy to slowly tear down the wall.

When the Liao army came, they used the river valley and the bastion artillery to kill a large number of people. If the Liao army didn't come to guard, it would be fine. In this way, the troops from all walks of life could attack the city near Yanshan Mountain and the north of Yanmen Pass more recklessly.

This can be regarded as the predecessors planting trees and the descendants enjoying the shade. These Great Walls cannot be built overnight.

Soon, with the cooperation of a large number of craftsmen and soldiers, the Lianhua Fort in the south of the North Gate was rising, and the Qin army scouts outside the North Gate were also approaching the Xiren territory further north to investigate the movements of the Liao army.