In the later period of "Romance of the Three Kingdoms", Sima Yi played a pivotal role, he was not only an important minister of Wei, but also a key figure in the political and military pattern of the later Three Kingdoms. His appearance and actions profoundly changed the fate of the Three Kingdoms.
First of all, Sima Yi was an important advisor and general of the Wei state. With his outstanding wisdom and military talents, he made many suggestions for the Wei State and made great achievements. During Zhuge Liang's Northern Expedition, Sima Yi successfully resisted Zhuge Liang's attack and turned defeat into victory at a critical moment, so that Wei's position was consolidated.
Secondly, Sima Yi is also extremely clever in politics. He was good at observing words and feelings, and could accurately judge the situation and people's hearts, so he repeatedly gained the upper hand in the political struggle of Wei. Through a series of political means, he gradually grasped the power of Wei and laid the foundation for the later Jin Dynasty to unify the Three Kingdoms.
More importantly, Sima Yi changed the fate of the Three Kingdoms. Before him, the situation of the three kingdoms had already been formed, and the countries attacked each other, and it was difficult to unify. However, the emergence and actions of Sima Yi have changed this situation. Through his resourcefulness and military means, he made the Wei State gradually stronger, and finally under the leadership of his grandson Sima Yan, he successfully unified the three kingdoms and ended the long-term ** situation.
Therefore, it can be said that Sima Yi was an important figure in the later period of "Romance of the Three Kingdoms", and his appearance and actions profoundly changed the fate of the Three Kingdoms. His resourcefulness, military prowess, and political skill made him a great figure to be reckoned with in history.