Everyone knows that after Zhou Yu lost Jingzhou, Liu Bei ignored the persuasion of Zhuge Liang and Zhao Yun and others and insisted on attacking the State of Wu. As a result, it was burned miserably by a fire by Lu Xun, and soon after Liu Bei was killed, and the defeat of Yiling was also a turning point in the transformation of the Shu state from prosperity to decline, losing the strategic place of Jingzhou, and the situation of the Shu state in the Three Kingdoms was also sharply deteriorating.
It became the weakest of the Three Kingdoms, and later Zhuge Liang also lost Jingzhou during the Northern Expedition, and this strategic place suffered greatly. Repeated failures, and Liu Bei did not take Zhuge Liang when he first cut down Wu, we can still understand, but look at the people around Liu Bei, we know why they failed.
When Liu Bei was fighting Wu, he had a total of 4 sergeants with him, namely Ma Liang, Cheng Ji, Huang Quan, and Chen Zhen. These 4 people formed Liu Bei's intelligence, but hearing the names of the 4 of them, many people may feel strange, but it can be said that except for Ma Liang, the other three people are useless, it can be said that when Wu Guo appointed Lu Xun as the governor of the capital, Liu Bei thought that Lu Xun was just a student. There was no great ambition at all, and when Liu Bei marched all the way, Ma Liang also advised Liu Bei to be more vigilant many times, believing that our country was waiting for the opportunity, but Liu Bei did not listen to the final defeat of Yiling, and Ma Liang also died in the war.
In addition to Ma Liang, there is also an important strategist, that is, imperial power. He was originally Liu Zhang's subordinate, and repeatedly advised Liu Zhang not to let Liu Bei enter Sichuan, but Liu Zhang did not listen, which eventually led to the loss of Yizhou, after Liu Zhang's defeat, Huang Quan surrendered to Liu Bei, Liu Bei wanted to use the water army along the river to attack the State of Wu in one fell swoop in the process of attacking the State of Wu, and Huang Quan confirmed that he was the water army of the State of Shu and was not an opponent of the State of Wu at all. Liu Bei obeyed the advice of the imperial power, and it can be said that in addition to Ma Liang and Huang Quan, the other two people played a very small role in Liu Bei's process of cutting down Wu.
It can be seen that when Liu Bei was cutting down Wu, there were no real strategists to rely on, and he was blinded by anger, so why would such a war not be lost?