Zhuge Liang knew the general trend and that Korea could not be restored. Wei can't be destroyed, because Wei is peaceful and prosperous, talented and wise in SHEN WOO. The reason for many northern expeditions is to use the war economy to maintain the domestic stability of Shu and ease the contradictions within the group, and also for his political slogan. I know: Wu has internal unity, stable people's hearts and a large number of talents, so I did not rashly use the upstream advantage to attack Wu. Has been holding the strategy of fighting the enemy of Wu.

Zhuge Liang understands politics, the importance of a political slogan to a country and the importance of a good policy to a group.

Zhuge Liang is well aware of human nature and the role of die-hards like Wei Yan in the Northern Expedition. I also know that Wei refused to withdraw after his death, so Yang Yi took over the military affairs and saved his own strength, because Shu could not defeat Wei.