Most people should be influenced by Luo Guanzhong's Romance of the Three Kingdoms and do not understand the forces of the Three Kingdoms.

According to historical records such as The History of the Three Kingdoms, Liu Bei defeated Cao Cao in the battle of Hanzhong in 2 19 A.D., and at this point, Liu Bei was able to completely occupy Bashu, while Liu Bei also had Nanjun, Wuling and Lingling counties. So this period can be said to be the peak of Liu Bei.

And about Liu Bei's strength

According to historical records such as the History of the Three Kingdoms, when Guan Yu launched the Xiangfan War against Cao Wei, he took about 30,000 chosen men. On this basis, according to many historians, Guan Yu will at least leave 1000 troops in Jingzhou to defend Wu Dong. Therefore, for Guan Yu, who is guarding Jingzhou, there are about 40,000-50,000 military forces. Obviously, with Liu Bei's 6,543,800+troops in Yizhou, the Shu Han in its heyday had about 6,543,804-6,543,805,000 troops, that is, as many as 6,543,805,000 troops.

Wu Dong and Cao Wei in the same period

For Shu Han, at its peak, there were only 6.5438+500,000 troops at most. So, as far as Wu Dong and Cao Wei are concerned, how many troops do they have? In this regard, according to historical records such as The History of the Three Kingdoms and The Book of Jin, there were 523,000 households, 2.3 million people and 230,000 troops when Soochow was destroyed in the Western Jin Dynasty. It is worth noting that if Wu Dong had not attacked Jingzhou, Jingzhou's army would not have exceeded 200,000.

As for Cao Wei, before the elimination of Shu Han, Wei State owned 1.03 million households with 4,432,800 people, with a total strength of about 500,000. Therefore, Cao Wei surpassed the sum of Shu Han and Wu Dong in population and strength. Therefore, even if Shu Han and Wu Dong joined forces to resist Cao Wei, they did not win in the end. This is undoubtedly because Cao Wei occupied the densely populated Central Plains. On this basis, Cao Wei has an army of 500,000, and it is impossible to defeat Cao Cao by the Shu Han family alone.

The alliance between Sun and Liu still has a chance to defeat Cao Cao.

If Sun Quan and Liu Bei don't turn against each other, it is still possible to defeat Cao Cao. As mentioned earlier, in the heyday of Shu and Han, the strength was 1.5 million, and Sun Quan was almost the same. The total strength of the alliance is more than 300,000. It is possible to recruit again before the war, reaching 350 thousand or even 400 thousand. Facing Cao Cao's army, the gap was further narrowed.

Third-line operation

If Sun Liu alliance, cutting cao north, there are about three fronts:

One: The army of Xichuan led by Liu Bei and Zhuge Liang went north from Hanzhong, attacked Chang 'an, captured Guanzhong and Liangzhou, and then attacked the Central Plains.

Two: Liu Bei sent a counselor to assist Guan Yu, joined forces with Wu Dongjun of Jingzhou, went north from Jingzhou, captured Xiangfan and Wanxian, and took Xuchang directly.

Third, Sun Quan led Wu Dong's army to attack Hefei from the eastern front, occupy Xuzhou, and then directly occupy the Central Plains.

Third-line operations, and every way is a malicious role, even if Cao Caobing is multifaceted, it is difficult to deal with.

Of course, these are all based on "if".