What was the reason for the failure of Song Taizong s conquest of Liao?

This is because after this war, Mongolia's strength has been increasing, and at the same time, its economy has continued to develop, and its military strength has also been increasing, so after this war, Mongolia was able to rise.

Because the Mongols won this war, and because the Mongols had a very large advantage, the Mongols rose from then on.

After the fall of Liao, the power was relatively weak and lacked control, so Inner Mongolia rose, and the influence of Mongolia's military power was very strong.

The question is wrong, when the Song Taizu era was busy destroying the separatist regime in the south (the Nine Kingdoms), he did not launch any attack on the Liao State in the north. On the contrary, during the period of Song Taizu, Song and Liao have always maintained a peaceful situation, and there was no war between the two sides.

Song Taizu determined the strategic policy of unifying the south first and then the north, from easy to rare. However, after he eliminated the various separatist dynasties in the south, he died suddenly before he could turn the spearhead to the north (the last of the ten kingdoms attached to the Khitan: the Northern Han).

Throughout his life, he did not have a direct conflict with Liao.

Even the Northern Han Dynasty was wiped out by Zhao Guangyi, Taizong of the Song Dynasty. Later, it was Song Taizong who hijacked the victory of the Northern Han Dynasty and hurriedly launched a northern expedition against Liao in an attempt to recover Yanyun in one fell swoop.

During the time of Song Zhenzong (1004), Liao attacked the Northern Song Dynasty, and the prime minister Kou Zhun strongly persuaded Song Zhenzong to come to the city of Lanzhou, and the morale of the Song army was greatly boosted, and the Liao army was repelled The second year of the Liao and Song Dynasty negotiated peace, the Liao Dynasty retreated, and the Song Dynasty gave the Liao Sui coin, which was known as the alliance of the Yuan Dynasty For a long time after that, the Liao and Song Dynasty maintained a peaceful situation

Therefore, C

Five dynasties later, at the end of the Tang and Qing dynasties, the Liao (Khitan) Emperor Yelu Deguang supported Shi Jingjiao to defeat the Later Tang Dynasty and called the Later Jin Emperor, and seized the land of Youyun Sixteen Prefectures (now Beijing to Datong, Shanxi) from the Shi Jin Dynasty and used it as a base to continuously raid the Central Plains. At the beginning of the founding of the Later Zhou Dynasty, Liao supported the Northern Han regime to divide Hedong (Zhitaiyuanfu, now Jinyuan Town, southwest of Taiyuan, Shanxi) as a vassal to shield Yanyun. In the seventh year of Later Zhou Xiande (10th year of Liao Yingli, 960), Zhao Kuangyin was inspected in front of the palace to represent Zhou as emperor, and after the Northern Song Dynasty was established,[2] Liao continued to support the Northern Han and Song to contend with the Song.

At that time, there were still independent secession regimes in the south, such as Wuyue, Southern Tang, Jingnan, Southern Han, and Houshu. [3] In order to achieve unification, Zhao Kuangyin, in the process of implementing the strategy of marching first to the south and then to the north, sought an opportunity to divide his troops to capture the Northern Han in an attempt to eradicate the Liao vassals in order to recover Yanyun, but each attack was blocked by Liao reinforcements and failed. [4] In the second year of Qiande (964), the Song Dynasty attacked Liaozhou in the Northern Han Dynasty (Zhiliao Mountain, now Zuoquan, Shanxi), and Liao sent Yelu Tarlie to lead an army of 60,000 to help, which was the first large-scale battle between Song and Liao.

From the first year of Kaibao (968) to the second year, the Song Dynasty attacked the Northern Han Dynasty again, besieged Taiyuan, and Liao sent troops to aid the Northern Han Dynasty, which was repelled by the Song army. [5] Until the end of Kaibao, not only did it fail to destroy the Northern Han Dynasty, but it caused conflicts between Song and Liao to erupt, and the contradictions became increasingly deep.

The Liao-Song War was caused by the Northern Song Dynasty's desire to recover the Sixteen Prefectures of Yanyun occupied by the Northern Han, a vassal state of the Liao State.

During the period of the Five Dynasties and Ten Kingdoms, the Liao State first supported Shi Jingjiao to establish the Later Jin Dynasty and captured the Sixteen Prefectures of Youyun (now Beijing to Datong District, Shanxi), and later supported the Northern Han regime and ceded Hedong (now Jinyuan Town, Taiyuan, Shanxi) when the Zhou Dynasty was founded, and the Northern Song Dynasty, which was founded in 964, fought on a large scale for the first time against the Liao State, and in 968-969, the Northern Han Dynasty failed to intervene due to the intervention of the Liao State, and destroyed the Northern Han Dynasty, a vassal state of the Liao State, in 979, and began the 25-year war with the Liao State for the sixteen states of Yanyun.

To start with a person named Shi Jingjiao of the Five Dynasties and Ten Kingdoms, when Shi Jingtang dedicated the 16 states of Yanyun to Yelu Deguang, so after that, many Han people wanted to restore the 16 states of Yanyun to China's right to rule such a land of the Han Dynasty uh, the Liao and Song wars happened in such a situation Well, the Song Dynasty hoped to complete the unification of the Liao Dynasty by recovering this Yanyun 16 states, and hoped to invade the Song Dynasty through the 16 weeks of Yun, so there was a war between these two countries Well, caused the later alliance of the abyss.

Song wanted to recover the sixteen states of Yanyun, and Liao wanted to go south.

The contradiction point of the Song-Liao dispute is the sixteen states of Yanyun, which is a thunder planted by Shi Jingtang. In the end, Liao was destroyed by the Song and Jin forces.

Fight for the cities, land, and property ,... in the north of the Song Dynasty

The impact on the time was very large, and it also led to the rise of the Mongols through this campaign. began to expand abroad, and successively eliminated many hidden or many countries. It has laid the foundation of the national slow model home.

At the same time, it also made the development of Mongolia better, and at the same time, it also had a very far-reaching impact on future generations.

The rule of the Han nationality could not be well consolidated, the Han nationality suffered some envy and old blows, and the Dongsheng Mongolian nationality quickly developed and expanded, and the situation of the country underwent some changes, and the people's life style returned to life Some changes, so that the Mongolian rule the country faster, made the country very unstable, and consumed a lot of manpower and material resources.

The impact on that time was very great, because at that time, the strength of Liaojin and Xi was also very strong, and the rise of Inner Mongolia also accelerated the unification of the Central Plains in Inner Mongolia. Many small countries were eliminated, and the territory of Inner Mongolia was expanded. It is also the first to let the number of Chang sheds live a stable and unified life.

It affected the Liao State at that time, and also affected the development of the Mongolian people, and also affected the strength of the Mongolian people, and the dynasty at that time caused a great impact on the distraction of the reputation, and also affected the unification of the dynasty.

After the Battle of Liaojin, the people of the Central Plains realized the strength of Inner Mongolia. Inner Mongolia also took advantage of this opportunity to unify the Central Plains, although the people of Lao Chong Bowu lived in dire straits, but also brought stability and stability to the people. It has also promoted China's reunification and development.

The rise of Mongolia has also shown the world the ingenuity of China's real silver.

There were a lot of wars, so that the people were displaced, at that time, the power of the Liao State had been greatly reduced, the national strength declined, and finally the people were miserable.