Underground great wall
“Great underground wall”
The ancient history of China dynasty tells the story of a Northern Son (, 960-1127 ad), resisted for 200 years the dynasties Liao and Jin, which were bordered at that time with the Northern areas of China, the Khitan and Jurchens respectively.
North China plain is a vast flat base, without mountains or rivers that could be used when defending from attacks from the North. In such circumstances, the weaker the dynasty Dream has managed to survive over such a long period of time?
Ancient military tunnels in Yongqing
In the summer of 1948, the village of Yongqing Hebei region experienced a major flood that rapidly flooded the town. The villagers fled for their lives, as soon as heard the buzz of the water flow. But suddenly the main channel of the flood is rejected, and in the near future the level of flooding is greatly reduced.
A few days later, in the North-Western part of the village, curious villagers found that the flood was actually rejected by an underground tunnel. In 1951, the house is located in 2.5 kilometers from the town of Yongqing, suddenly fell to the ground, revealing an underground cave approximate area of 150 square meters.
Within the cave were found many small doors, each of which was a corridor. Inside it is a small hut, in which were found the remains of candles and brick oven. After dallashistory the experts came to the conclusion that these ancient military tunnels were distributed throughout the district Yongqing, on an area of about 300 square kilometers.
Who and when built the ancient military tunnels?
The experts found that the ancient military tunnels in Yongqing were widespread. In fact, they represented a large building used by the army as a shelter during the hostilities. The structure of underground structures was complex and well designed, with everything necessary for warfare, as an example of hidden outs, shelters and traps.
As was discovered well-developed economic infrastructure with ventilation, lighting and heating. “Blue high strength bricks” used in the construction of tunnels had dimensions of 30×16×8 cubic centimeters. This type of brick, made of high quality clay, fired at high temperature, was very solid and sturdy.
All of this suggests that a well-crafted and complex underground network was installed at one point in time. Further investigation showed that the blue high strength bricks, found in the County of Yongqing, were the same as found in the underground tunnels Gypsy, the area of the shun dynasty Sleep.
The creation and subsequent maintenance of such a massive underground network required a large number of such bricks. It is believed that these ancient military tunnels were built as part of a large national project, created and curated at a high level of state power of that time period.
Tunnels covering an area of more than 1 600 square kilometres
Experts have identified such military tunnels in the areas of Xiong and Bajo. Ancient military tunnels stretches approximately 65 kilometres from East to West and 25 kilometers from North to South, covering an area of 1 600 square kilometres. When the border between Sleep and dynasty dynasty the Liao river was shifted West to the areas of Rongcheng and Wang fu Jing commercial area, it can be assumed that many of the ancient military tunnels were built in the area. But how far they extended in an easterly direction from the Yongqing, is still unknown.
Shelter to soldier
There are many legends about the underground network, one of them said that the ancient military tunnels were built by General Yang and his family. This is a known genus, in which three generations were born famous generals. Another legend tells us that General Jan Lulan used underground tunnels to protect the borders. In this time period (960-1127 A. D.), troops of the Liao dynasty was constantly disturbed land to the North of the area, Yongqing.
Says Jan Lulan built tunnels to hide underground his soldiers, and thus had the opportunity to defend themselves from the raids of neighbors. Experts indicate that underground tunnels may have been used for some offensive operations during the war occurred on the territory of ancient China. To protect themselves for many years, people were building large walls in mountainous areas and near rivers and lakes to block the cavalry.
However, on the open plains, where it is difficult to use the landscape as a means of protection, the tunnels allowed the soldiers to move under the ground unnoticed. Ancient military tunnels became known for the advantage they provided to the troops, despite the fact that those attacking or defending, and they were called “Underground great Wall”.