In 409, Emperor Wu of Song began to expand to the outside world. He made two northern expeditions, first destroying Southern Yan and then Qin. He defeated the northern Wei fighters in one month, recovered Huaibei, Shandong, Henan, Guanzhong and other places in one fell swoop, and recovered Luoyang and Chang 'an, which made him strong for a while.
When Chang 'an was captured and destroyed in 4 17, Emperor Wu of Song's strength reached its peak. There are not only many famous soldiers who can be good at fighting, but also brave and invincible northern government soldiers. At that time, there was no climate in Helian Bobo in the north. At this time, Tuoba GUI's son was in power in the Northern Wei Dynasty, and his strength was not as good as that of his son Tuoba GUI. It is the best time for Emperor Wu of Song to show his talents. It is very likely to create the first history of unifying the world from south to north. Even if reunification cannot be completed in his hands, it can at least greatly weaken the strength of Hu Xia and the Northern Wei Dynasty and create conditions for the Southern Dynasties and the Song Dynasty to unify the world. Unfortunately, Emperor Wu of Song's good cards were smashed by himself, which directly ruined the best opportunity to unify the world. Today, let's talk about the biggest move of Emperor Wu of Song's life: he could have made history, but he ended up miserable.
Shortly after Emperor Wu of Song won Chang 'an, Liu, the confidant of the left-behind health, died of illness. In 4 18, emperor Wu of song worried about the change in the rear and moved troops back to the DPRK. It is hard to say that he is wrong, because the fundamental purpose of his northern expedition is to accumulate prestige for himself and prepare for usurpation. It is imperative for him to stabilize the situation in the rear, but he made a big mistake in the arrangement of the left-behind personnel in Chang 'an, which directly led to the infighting of several generals.
Emperor Wu of song's fault is not that his 12-year-old son Liu Yizhen is guarding Chang 'an. In fact, this can't blame Emperor Wu of Song, because the old son is coming. In 406, 44-year-old Emperor Wu of Song asked his eldest son, Liu Yifu, and left his second son, Liu Yizhen, to guard Chang 'an, supplemented by elite soldiers. There is nothing wrong with this arrangement. Emperor Wu of song's biggest trick was to take Wang Zhene as the general and take Anxi Sima and Feng Yi as the satrap, which gave Wang Zhene great power. On the other hand, because he was the grandson of Wang Meng, a famous figure in Fu Jian of the former Qin Dynasty, Guanzhong was the hometown of the former Qin Dynasty, and Wang Meng was very famous in Guanzhong, Emperor Wu of Song was worried about making too much trouble, and even said to Shen and Fu Hongzhi, both left-behind generals: Today, there are 10,000 elites in the Qing Dynasty. If Wang Zhene wants to do something bad, it's suicide.