During the Three Kingdoms period, after the death of the Prime Minister of Shu Han, Zhuge Liang, his son Jiang Wei took over as Prime Minister and began nine expeditions to the Central Plains. This article will discuss the number of victories Jiang Wei achieved in his nine expeditions to the Central Plains based on historical records.

First, Jiang Wei's nine expeditions to the Central Plains occurred between the 12th year of Jianxing (234) and the 1st year of Jingyao (260) in the era of Shu Han, spanning approximately ten years. During this period, Jiang Wei conducted five northern expeditions to the Central Plains, respectively:

First Northern Expedition (234-235): Jiang Wei led the Shu Han army to attack the Cao Wei territory, capturing Chen Cang and other areas. However, due to insufficient food and grass supplies and the counterattack of the Wei army, he ultimately returned without achieving any significant victories.

Second Northern Expedition (237): Jiang Wei mounted another expedition, capturing Longxi, Di Dao, and other regions. However, due to political strife within the Shu Han kingdom and issues with food and grass supplies, he was ultimately unable to capture Chang'an.

Third Northern Expedition (238-239): Jiang Wei led his troops to attack Chang'an and successfully captured it. However, due to the counterattack of the Wei army and internal conflicts within the Shu Han kingdom, he was forced to withdraw.

Fourth Northern Expedition (244-245): Jiang Wei attacked Chang'an again, successfully recapturing it and forcing the Wei general Sima Yi to withdraw to the Central Plains. However, due to escalating domestic conflicts within the Shu Han kingdom and issues with food and grass supplies, Jiang Wei was unable to continue with his northern expeditions.

Fifth Northern Expedition (262-263): Jiang Wei's final attempt to attack the Central Plains saw him capture Chen Cang, San Guan, and other regions. However, due to the counterattack of the Wei general Deng Ai and internal conflicts within the Shu Han kingdom, Jiang Wei was forced to withdraw.

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