Referring to the Tang Dynasty's entrepreneurship and living notes, Li Yuan's starting of the army was mainly his own plan, and Li Shimin's proposition at that time was to hide in the mountains and wait for the changes. Li Shimin does have great military achievements, which is true, and Li Jiancheng is also very likely that Li Shimin cannot fight, but judging from Li Jiancheng's few achievements, it should be considered OK. Li Shimin did not have to rebel, he began to prepare to become emperor from a very early age.
After Li Shimin attacked Xue Rengao, Li Yuan set out to weaken Li Shimin's power, and he dismissed many of the staff of the Qin Dynasty, when Fang Xuanling said that if Li Shimin was willing to be a prince, he could let Du Ruyi go, but if he wanted to "run the four sides" as emperor, then you must not let him go, you must know that at this time Tang occupied guanzhong and Longyou. On the other hand, if he really didn't want to be an emperor, so many people he could directly recommend to the imperial court, all in the Heavenly Strategy General's palace for what?
Li Jiancheng also discovered the ambitions of this younger brother after Li Shimin won the Battle of the Three Kings, but the action he took was to personally take command of Liu Heimin, or to dig the foot of the wall, and whether the worst poisoning was in doubt, and the day of the Xuanwumen Change was also ready to enter the palace with Li Yuanji to let Li Yuan get Li Shimin away. Li Jiancheng is also related to the support of the Long nobles, he really can use soldiers, but he did not, at least he did not kill Li Shimin at that time, of course, to say that the struggle to the end (Li Shimin has also been holding back) whether Li Jiancheng will have a killing heart, that will definitely be, there is no family affection in front of the imperial power.
Li Shimin is more like a military general, but he is more good at lifting the table. If Li Shimin's battle is really based on general rationality, many of them must rely on logistics, and the logistics are in the hands of Li Jiancheng and Li Yuan, so there are very few wars that truly reflect his plans. Li Jiancheng was surrounded by Guanlong nobles, and he did not go out to fight, Li Shimin had a large number of Hedong shi and warrior groups around him in addition to The Guanlong nobles, that level and scale were completely different, and Li Shimin should have had ambitions to become emperor very early, which was still different from Zhu Di's pure brother in front of Zhu Biao. Li Jiancheng should be able to rule, the emperor who succeeded to the throne should not be a problem, and the martial arts should definitely be far worse than Li Shimin, but it should be stronger than Li Yuanji. Li Jiancheng was actually okay, but he didn't have the ability or the ability to force Li Shimin to take the risk and kill his brother and father.
At that time, Li Shimin's situation was that the gate valve clan that grasped the real power basically sided with Li Jiancheng, Li Shimin's ability was ridiculously strong, and the merit was even more unsealable, Li Jiancheng was jealous of him, and Li Yuan was partial to his eldest son, so Li Shimin would be desperate to take risks, if Li Shimin was the crown prince, it would be impossible to do this thing, and it would be impossible to do this thing with peace of mind when Li Yuan abdicated.
Li Shimin's ability was far superior to Li Yuan's, so li Shimin did not need to kill Li Yuan after the Xuanwumen Rebellion. Li Shimin could not say that he was not worried that Li Yuan would be able to secretly recruit diehards and regain the throne, but this fear was obviously limited, so Li Shimin only imprisoned Li Yuan instead of killing him. Li Shimin's strength was actually fought in the Battle of Baibi and the Battle of Tiger Prison Pass, and it was really ridiculous that Li Yuan was still trying to balance him.
Li Yuan's own personality has problems, whether it is the Two Tang Dynasty Books or the Zizhi Tongjian, or even the most friendly Tang Dynasty entrepreneurial living notes for Li Yuan, in the Battle of Huoyi, it is recorded that Li Yuan encountered difficulties and once wanted to retire, but later when he was persuaded, it can be seen that there is a weakness in this person's personality that he wants to retreat when he encounters difficulties, so it is not surprising that Li Jiancheng suggested that he also agreed to move the capital. Speaking of this, among Li Yuan's most important children, Li Jiancheng's temperament really followed his father Li Yuan, while Li Shimin and Princess PingZhaoyang followed his mother Dou, thinking that Li Yuan was also enough to cup, the two most cattle women followed their mothers, and the eldest son who was most similar to him finally became a loser like him.