Cao Cao's unification of northern China was an important transitionary period in Chinese history. Occurring shortly after the fall of the Han Dynasty, it led to the establishment of the Kingdom of Wei, one of the major Chinese states during the Three Kingdoms period. Jump to: navigation, search Han commanderies and kingdoms AD 2. ... The Kingdom of Wei (ch. ... The Three Kingdoms period (Simplified Chinese: 三国; Traditional Chinese: 三國; Pinyin Sānguó) is a period in the history of China. ...

Cao Cao, a warlord who had been a prominent member of the previous Han Dynasty, had first established his power in northern China by defeating his rival, Yuan Shao, in the Battle of Guandu in 200 AD. This made Cao Cao the most powerful ruler in northern China. Jump to: navigation, search Cao Cao (155 – 220), whose name is also often transliterated and should be correctly pronounced as Tsao Tsao, was a regional warlord and the last Chancellor of Eastern Han Dynasty who rose to great power during the last years of the Eastern Han Dynasty... Jump to: navigation, search Yuan Shao (? – 202) was a major warlord occupying the north of ancient China during the massive civil war towards the end of the Eastern Han Dynasty and the beginning of the Three Kingdoms era. ... The Battle of Guandu (官渡之戰) was a battle in Chinese history. ... For other uses, see number 200. ...

A year after being defeated in battle, Yuan Shao died. Yuan Shao's eldest son, Yuan Tan, and his younger son, Yuan Shang, fought a protracted war over the succession, but neither was able to gain the upper hand. Eventually, Yuan Tan decided to give his allegiance to Cao Cao in exchange for help against his younger brother. With Cao Cao's backing, Yuan Shao's capital, the city of Ye, was captured. Yuan Shang fled, seeking the protection of Gongsun Kang, who had once been an ally of his father. Gongsun Kang, however, feared an attack from Cao Cao, and so killed both Yuan Shang and his other brother, Yuan Xi. Yuan Tan (? – 205) was the eldest son of the warlord Yuan Shao and served as a military commander under his father during the late Eastern Han Dynasty and Three Kingdoms era in ancient China. ... Gongsun Kang (公孫康 gong1 sun1 kang1; ?-221) was a Chinese warlord in Liaodong and northwestern Korea. ... Yuan Xi: second son of yuan shao he was defeated in battle against cao family he flees back to liao dong and was betrayed and kill by gonzun zang his head was sent to cao cao ...

Yuan Tan, after having defeated his younger brother, attempted to rebel against Cao Cao's control. The attampt failed, however, and Yuan Tan was executed. Gongsun Kang later surrendered to Cao Cao, although still existed as a semi-independant satellite state for several years. Thus, the reunification of the North was complete.

See also: Three Kingdoms The Three Kingdoms period (Simplified Chinese: 三国; Traditional Chinese: 三國; Pinyin Sānguó) is a period in the history of China. ...