He went to Jiangdong and successfully concluded a friendly treaty with Soochow, which eliminated the hidden dangers of Liu Bei's regime in the east and sought a better political environment for political stability and the establishment of Shu-Han regime.
In addition, in the battle, Zhuge Liang often bears the heavy responsibility of consolidating the rear, which can also show Zhuge Liang's extraordinary ability to handle government affairs.
According to Zhuge Liang and Chen Chuanshou's evaluation of Zhuge Liang in "The History of the Three Kingdoms", "However, after years of touching people and failing to achieve anything, the cover will be slightly changed, not because of its strengths!" . I'm afraid it's because of the military strategy of improvising, not his (Zhuge Liang's) strengths.
Extended data:
Zhuge Liang went to Jingzhou with his uncle Zhuge Xuan in his early years. After Zhuge Xuan's death, Zhuge Liang lived in seclusion in Longzhong, Xiangyang. After Liu Bei arrived at the thatched cottage, Zhuge Liang was invited to come out, but Sun Lian resisted Cao and was defeated by Battle of Red Cliffs. Formed the trend of the Three Kingdoms and captured Jingzhou. In the 16th year of Jian 'an (2 1 1), Yizhou was captured. Then he defeated Cao Jun and won Hanzhong. In the first year of Shu Zhangwu (22 1), Liu Bei established the Shu-Han regime in Chengdu, and Zhuge Liang was appointed as the prime minister to preside over state affairs.
Liu Chan, the ruler in the last years of Shu and Han Dynasties, succeeded to the throne, and Zhuge Liang was made the marquis of Wuxiang, leading Yizhou as a shepherd. Diligent and prudent, big and small political affairs must be personally done, and rewards and punishments are strict; Make an alliance with Wu Dong to improve relations with all ethnic groups in southwest China; Carry out the reclamation policy and strengthen combat readiness. Most of the six northern expeditions to the Central Plains were based on grain. Eventually, due to overwork, he died in Wuzhangyuan (now Qishan, Baoji, Shaanxi) in the twelfth year of Jianxing in Shu at the age of 54. Liu Chan made him a loyal minister, and later generations often called him Zhuge Liang by Wuhou. Because of his military ability, the Eastern Jin regime named him King Wuxing.
Liu Bei's trip to the thatched cottage was a turning point in Zhuge Liang's life and opened the door for Zhuge Liang to enter his official career. Zhuge Liang's political career is divided into two stages with the death of Liu Bei as the dividing point. In the previous stage, Zhuge Liang was mainly engaged in diplomatic activities and the construction of rear base areas to prepare for the establishment of the Shu-Han regime. In the later period, Zhuge Liang devoted most of his energy to the Northern Expedition except assisting the latter in handling political affairs. During this period, Zhuge Liang showed his military talent and outstanding performance in running the army. He himself was also clearly rewarded and punished, "see no evil, see no evil"; The army under its management can have strict military discipline and advance and retreat.
Baidu Encyclopedia-Zhuge Liang