Is the demise of Shu related to Liu Bei?

The direct reason is that he and his father defeated 700,000 troops of Shu in Wu Dong, which made Shu unable to wage a big war in the future. You can only stick the turtle shell by the danger of Shu Road. Do you think that would be the end of the Three Kingdoms if 700,000 troops were still there? As for dou, that is, he is a little better than me. When you meet a strong master like Zhuge Liang, you can do nothing but play. . . . . . . . . . . . . Hope to adopt. . . . .