Although the Eastern Wu did not successfully rescue the Shu Han, they did not sit idly by. In fact, after the Shu Han was conquered by the Cao Wei, the Eastern Wu took a series of actions to protect its own interests and status.

Firstly, the Eastern Wu sent messengers to the Cao Wei to express their loyalty and put forward their own interest demands. This approach could both reassure the Cao Wei and secure certain benefits. Secondly, the Eastern Wu continued to strengthen its military preparations to ensure its own safety.

In addition, the Eastern Wu also employed diplomatic means to consolidate its position. For example, they sent messengers to various regions to cultivate relationships with local elites and scholars, seeking their support. Furthermore, the Eastern Wu dispatched envoys to various countries in the south, establishing friendly relations with them to expand its influence and diplomatic space.

It can be said that although the Eastern Wu was unable to successfully rescue the Shu Han, it did take a series of actions in the subsequent period to safeguard its own interests and status, which was a wise choice.

Moreover, there was not a very solid alliance between the Eastern Wu and the Shu Han, and there were also some contradictions and mistrust in mutual support. Under such circumstances, even if the Eastern Wu wanted to rescue the Shu Han, it needed to carefully consider the relationship and interests of both sides. A failed military operation could lead to even more severe consequences.

In addition, the Eastern Wu also faced the threat from the Cao Wei. As the strongest country at that time, the Cao Wei not only had strong strength but also had a wide territorial scope. If the Cao Wei obtained the territory and resources of the Shu Han, its strength would further increase, and the threat to the Eastern Wu would also intensify. Therefore, the Eastern Wu needed to consider its own interests and survival space and could not easily risk sending troops.

In conclusion, the reason why the Eastern Wu did not send troops to rescue the Shu Han was not because they were unwilling or did not attach importance to the safety of the Shu Han, but because their own strength was limited, the relationship between the two sides was not close enough, and they also needed to consider the threat from the Cao Wei. Under such circumstances, the Eastern Wu made a relatively cautious decision to protect itself and avoid greater losses.

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