Cao Cao is the only one who knows that it will be difficult to annex these two forces at once. So, Cao Cao sent someone with his letter to East Wu, wanting to join hands with Sun Quan to destroy Liu Bei.
Cao Cao is the only one who knows that it will be difficult to annex these two forces at once. So, Cao Cao sent someone with his letter to East Wu, wanting to join hands with Sun Quan to destroy Liu Bei.