When Liu Bei started up, the gap between him and his opponent was too big, as long as the opponent did not make fatal mistakes, he had no chance, and when Liu Bei started home, wu and Wei had developed for many years, not only political stability, but also a stable regime, on the contrary, the weakest party, Liu Bei, could survive in the cruel environment of the Three Kingdoms is an art, and this kind of survival does not rely on capitulationism, not Zhuge Liu Bei, it is indeed not time to me.
After starting his family, Liu Bei was the poorest, and his Shu Han national strength was the weakest of the three kingdoms (military strength, financial resources, manpower), not only a small chassis, a thin foundation, a small population, and poor resources, resulting in the people being very poor in the country, not even many decent warhorses, let alone soldiers who could fight well.
The crusade against Former Shu and Wu in Jiangdong were equal in strength (strength), and the gap between the two had widened after the crusade, and Cao Cao was even more too big. Zhuge Liang did not actively carry out the Northern Expedition, and Sooner or later Cao Wei would also come, and personally I felt that perhaps Zhuge Liang wanted to narrow the gap between the Shu and Wei states as much as possible in his lifetime. Because as soon as Zhuge Liang died a few years later, the Shu state basically crossed out immediately, if it is said that not moving the army will increase the national strength, then Cao Wei will not increase if the army does not move? Both move forward together and do not retreat. Therefore, Zhuge Liang tried his best to fight with the State of Wei in his lifetime, and gradually narrowed the gap by winning from the small war! In the rendition, Zhuge Liang's Northern Expedition still won more than it failed, if it were not for the loss of Ma Ji Street Pavilion and Ah Dou being provoked by Huang Hao, Zhuge Liang and Jiang Wei would have won even more times, and Sima Yi could be captured in the upper valley, and Sima Zhao could be captured on Tielong Mountain! ......
Finally, there was almost no assistance, Eastern Wu's national strength and strength were stronger than the Shu state, and with the Yangtze River as a natural danger guarantee, the advantage was much more than shu, but the number of battles with the Wei state was very small, if he had struggled to go north with Zhuge Liang and sacrificed some troops to help the Shu state fight together, Zhuge Liang would not have been so tired.