How did Liu Yu and Tuoba pave the way for future generations?

Liu Yu, the ancestor of the Song Dynasty of the Northern and Southern Dynasties, can be said to be invincible militarily at that time, whether it is Liu Yi internally, or the Northern Dynasty externally, as long as he has gone through the battle, he is basically invincible, no one has succeeded in the Northern Expedition of the Southern Dynasties before, and Liu Yu's Northern Expedition has been successful repeatedly, opening up a vast territory for the establishment of his kingdom, and it can be said that he has changed the situation of the north being strong and the south weak militarily. <>

Second, Liu Yu's repeated Northern Expeditions were not only to open up territory, but also to open up his prestige in the Eastern Jin Dynasty. Inherit the throne yourself, and don't have to bear the infamy of wanting to usurp the throne from your children and grandchildren.

After Liu Yu's martial arts performance in the war, the enemy was all fearless, and he trained his own army and his own military talents, Tan Daoji is the Great Wall left by Liu Yu to his descendants, but it is a pity that the descendants will not use it, and he will be suspicious to death. <>

Tuoba was the emperor of the Northern Wei Dynasty, and since he was a child, he showed a smart and wise posture as a Renjun Emperor. When his father was betrayed and killed, he showed his fortitude, put an end to the rebellion, and then applied benevolence to first pacify his own people.

Later, in order to eliminate the scourge of his own north, Tuoba Hei went north to Rouran, eliminated Rouran, and first eliminated the trouble of the north for future generations.

In the south, through the battle with Liu Song, he seized important places on the south bank of the Yellow River and Shandong and other places, approaching the territory of Liu and Song, laying a solid foundation for Tuoba Tao's unification of the north.

And selected talents, leaving a wise talent for Tuoba Tao's future career.

Fortunately, his son Tuoba Tao was a more powerful figure, unifying the north and advocating Sinology, and the Northern Wei Dynasty was extremely powerful for a while.

After Liu Yu became emperor, he killed Sima Yi's descendants on a large scale, just to cut down the grass and eradicate the roots, so as to prevent Sima's descendants from competing with the Liu family for the world;

Tuoba killed the rebellious Tuoba Shao, and during his reign, he also drove out to fight, broke Loulan, made great efforts, and left a great good country for future generations.

His ability is not enough, although he is very ambitious, but his strength does not allow him to do such a thing, and Tuoba is also a very capable person who is not so easy to deal with.

Because Liu Yu is very capable, has strong military command ability, and has won the hearts of the people, it is difficult to defeat.

Without that ability, when Liu Yu was alive, the Northern Expedition had been successful, and he couldn't defeat it at all.