Is it true that the three countries don't communicate with each other?

False, according to official records: Zhuge Liang went to Liu Bei himself, and Mao Sui should be recommended three times before Liu Bei accepted it. In Romance of the Three Kingdoms, Luo Guanzhong insisted that Liu Bei was an orthodox man, so he deliberately beautified Zhuge Liang and made him a wise man. The people sympathized with Zhuge Liang and put an empty plan on Zhuge Liang to scare away the living Sima. Novels are novels after all, and official history is true. The truth is this: Liu Bei defected to Cao Cao after the defeat in Xuzhou, and Cao Cao saw that Liu Bei was not in the pool and wanted to kill him. Liu Bei fled Jingzhou to his relative Liu Biao. And Liu is a military commander, and his fighting capacity is not weak, but he is an inferior civilian like Mi Zhu, so he wants to find a counselor. At that time, with the help of Xu Shu, Khan set fire to Xia Houdun and Li Dian, and then Cao Cao coerced his mother and left Liu Bei for Cao Ying. Before he left, Xu Shu went to Zhuge Liang and asked him to go to Liu Bei. Zhuge Liang went to see Liu Bei for the first time. Guan Yu looked down on him and left angrily. When Zhuge Liang met Liu Bei for the second time, he was appointed as a little counselor and left with no face. The third time, because Cai Mao wanted to kill Liu Bei, Liu Bei had nowhere to run, and Sun Gan had no plan. At this time, he remembered that Zhuge Liang had summoned him. Zhuge Liang became Liu Bei's deputy strategist at this time, and his main task was actually to transport grain and grass and be responsible for logistics. Zhuge Liang defected to Liu Bei for three reasons: Zhuge Liang's father-in-law Huang is Liu Biao's brother-in-law. Zhuge Liang's brother-in-law is Qi Liang, and these are nepotism. Liu Bei is Liu Bei's younger brother, and this circle is all relatives. Therefore, as a relative of Qijia (the second largest cremation force in Jingzhou), Zhuge Liang only agreed with Liu Biao, so with the help of Zhuge Liang's kinship, Liu Qi went to Jiangxia, giving Liu a small camp, and then Jingzhou seized power and Battle of Red Cliffs divided the world. If Cai Mao hadn't forced Liu Zong to surrender to Cao Cao early, Zhuge Liang would have won Jingzhou first. So in essence, Zhuge Liang belongs to Jingzhou Group and Zhao Mi Sun Qi belongs to Xuzhou Group. Later, Sichuan was the Bashu Group. The three groups are fragmented and refuse to accept anyone. The most arrogant thing is that Guan Yu didn't listen to Zhuge Liang at all, but he didn't listen to Pang Tong. It's strange, because the strategist at that time was not Zhuge Liang, but Pang Tong. Therefore, Battle of Red Cliffs, Fire Attack and Cao Cao's defeat of Huarong Road were all planned by Pang Tong, and Kong Ming was only responsible for the transportation of grain and grass at that time, because Liu Bei didn't trust Zhuge Liang at all. It was not until Pang Tong's death that Kong Caiming began to be a strategist. Until his death, Liu Bei did not trust Zhuge Liang. As for Baidicheng, it was simply for Zhao Yun to monitor Zhuge Liang. Needless to say. After Zhuge Liang's Northern Expedition, Zhao Yun and Ma Chao were never used again, except once when Zhao Yun was old and tried to recommend him. The so-called Iliad Army Ma Yun doesn't need it at all, and Zhao Yun, a general who is so good at killing seconds within three strokes of the battlefield, actually only made a garrison in Chengdu, the leader of the imperial army, responsible for defending the security of Liu Chan and the capital. This shows that Zhuge Liang is suspicious and narrow-minded. The purpose of Zhuge Liang's desperate Northern Expedition was to support the war by fighting and consume Wei's strength. Defeating the enemy without fighting, Wei was rich in food and grass for five years and won Bashu in one fell swoop. Such a desperate attack also consumed the already weak strength of Bashu Group, so in the end Liu Chan had to surrender. Because there is no strategic material.