Li Mu had sent Sima Shang specifically to assist Yanyan with his operations. After all, when it came to the capabilities of the various battalion commanders around Yanmen Pass, no one knew them better than Li Mu and Sima Shang.
What kind of battlefield required what kind of generals, and who was capable of completing what kind of mission—these were all factors a commander had to consider.
And Sima Shang undoubtedly understood how to coordinate with a commanding general, making him the exact same type of exceptional deputy general candidate as Yang Duanhe.
Chapter 381