Process: In Battle of Red Cliffs in 208, Sun and Liu joined forces to win, and Liu Bei finally had his own territory-Jingzhou, thus the rudiments of Sun Quan, Liu Bei and Cao Cao began to appear.
In 2 15, Liu Bei captured Sichuan, Cao Cao captured Hanzhong, and Sun Quan unified the south. As a result of Battle of Red Cliffs, Liu carved up Jingzhou. At this point, the tripartite confrontation between the three countries has basically taken shape.
Extended data
During the Three Kingdoms period, many countries had contacts with foreigners. There are Koguryo, Wokuotai, Fuyu, Sanhan and Baekje in the northeast. Since Wei and Jin Dynasties, the nationalities in the northern foot of Tianshan Mountain and Mongolian grassland mainly include Wusun, Jiankun, Chile, Dingling, Hu Jie, Xiongnu, Xianbei and Wuhuan.
After the Southern Xiongnu joined Cao Cao in 2002, Cao Cao divided the Southern Xiongnu into five departments, each of which was supervised by the Han people. Ta Dun, the leader of Wuhuan clan, formed an alliance with Yuan Shao and won the title of Khan.
After being unified by Tan at the end of the Eastern Han Dynasty, Xianbei repeatedly invaded the border counties. After his death, Xianbei was divided into East, Middle and West Xianbei. After the reorganization of Xianbei in the west, Bi Ke was able to invade Cao Wei twice in response to Zhuge Liang's attack on Wei. In 235, Wang Xiong, the secretariat of Youzhou and Cao Wei sent assassins to assassinate him, and his situation collapsed.