The emperor, of course, was not afraid. He still hoped that Gao Zhi, along with these noble clans, would capture the remaining cities smoothly. If they could do so peacefully, it would be best. Otherwise, he wouldn't mind shedding tears if sacrifices were made on the battlefield.
These people were like parasites to Goguryeo and the Jin Kingdom, revolting yet somewhat useful. Crushing them would only dirty one's feet and yield little benefit.
Letting them be exhausted on the battlefield is the best option.
State Duke Zhao, and evidently Bai Shan, could comprehend the emperor's intentions. So at night, before sleeping, Bai Shan quietly said to Manbao, "His Majesty clearly intends to make full use of Gao Zhi."
In the end, he didn't like it or appreciate it.
The emperor has always been more protective than exploitative of people he liked and appreciated. Sending him out urgently like this clearly indicates he's letting fate decide.
