The Liao-Jin War refers to the Liao-Liao War after the establishment of the Jin Dynasty, which destroyed the Liao Dynasty in 1125. Before its rise, Mongolia was ruled by a number of northern nomadic peoples such as the Huns and turks. From the 10th to the 12th century, Mongolian tribes gradually migrated to the Mongolian plateau, gradually merged into the Territory of the Liao Dynasty established by the Khitans, and began to accept the influence of advanced material culture.
With the decline of the Liao state, the whole country was already full of complaints, the people's hearts were contrary to each other, so the anti-Liao struggle broke out everywhere, and the Jin state was like this, and in 1115, the Jin state established the Jin state, began to rise up against the Liao, and gradually eliminated the Liao state, established a territory no less than the Liao state, and Mongolia began to be ruled by the Jin state again.
However, with the gradual decline of the Jin Dynasty, the Mongols gradually rose and began a war to unify the Mongol departments. Temujin's father was the leader of the Mongol Beggars, but with the death of Yesai, the tribal power declined.
Temujin surrendered to the "Anta" who was also quick to do so, and honored him as his father, indicating that he was a subordinate. From then on, he began to collect old ministries and accumulate strength. Later, it was established independently next to the Sangguer River. Some of the original tribes and various beggar nobles also moved closer to Temujin, and in 1189 elected Temujin as their leader.
After that, Temujin began the war to unify Mongolia, and in 1206 established the Great Mongol State at the source of the Hunan River, with the honorific khan name Genghis Khan.
The unification of the Mongol tribes was Temujin, but in fact, Temujin's great-grandfather Hebule took advantage of the fact that the Jin Kingdom had no time to take care of it, broke away from the rule of Liao and Jin and established himself, expanded the territory, and became more and more powerful, so the nearby tribes elected him as a Minister of Mongolia in 1127, so he was called "Hebul Khan". In desperation, in 1148 the Jin Lord crowned him as the King of the Mughals. Although it was later rumored that Temujin's father was also in a hurry, he was poisoned, causing the young Temujin to flee for many years, and the Mongol Kingdom was destroyed. However, it can be seen that at that time, the control of the Jin State over Mongolia was already very weak.
Although the Jin Dynasty was once very powerful, the fishing and hunting peoples who started from the White Mountains and Black Water originally lacked interest and assimilation ability in Mobeigao. Moreover, after the fall of the Liao State, the Jin State continued to go south and began a war with the Northern Song Dynasty, and in just two years, it created the shame of Jing Kang and eliminated the Northern Song Dynasty. However, the Jin people still went south to catch up with Zhao Shuo, who established the Southern Song Dynasty. Even after making peace with the Southern Song Dynasty, the Jin people moved south to Yanjing and focused their attention on the Central Plains.
At the same time, the seemingly inconspicuous Western Xia was also afraid and wary of Jin Guo. It can be said that the Jin Dynasty has long since lost the energy to directly administer the northern part of the desert.
After the rise of The Mongols, it began to expand abroad, successively eliminating many countries such as the Western Xia and the Jin Dynasty, and began three western expeditions, all the way to destroy the decay and establish a huge empire, it can be said that in the 13th century, Asia blew a whirlwind of Mongolia.