Guo Si shook his head and sighed, but anyone could see a hint of a smile in the corner of his eye.

Just as Guo Si and Liu Jing were talking, a spy from the Investigation Bureau suddenly came over and handed Guo Si a letter from Cheng Yu.

After reading the contents of the message, Guo Si's expression changed. Cheng Yu's scheme had truly broadened his understanding.

First, they bought all their women, wiping out their lineage. Then, through a series of means, they lured them to provoke people they couldn't afford to offend. When the Xiongnu wiped them out, they had nothing to say.

My Han merchants only bought some women, so what? Who told you to provoke the Xiongnu? You brought this on yourself, it has nothing to do with us!

Finally, the mighty Han army, in its image of unparalleled righteousness and glory, sent troops to help them.

I sold you out, and not only do you have to help me count the money, you also have to thank me!

"War is fought like this? I've really learned something new!!"

Recalling Cheng Yu's entire scheme, Guo Si felt a chill run down his spine. A meticulous, cunning, and ruthless man who single-handedly destroyed a country was truly terrifying.

Then Guo Si looked at Liu Jing and said, "Hmm, Commandant Liu, we should retreat. It won't be long before the Xiongnu invade!"

Liu Jing nodded, "Yes, that's good. We've exchanged so many women and livestock this time, and the grain is almost used up!"

In order to appease the King of Juyan and his noble officials, the two sent someone to inform them that the next transaction would be held at the border. Tuo Qi and the others did not suspect anything and readily agreed.

The next day, the two caravans, carrying women, cattle, and sheep, headed towards the Han Dynasty. At the same time, they sent urgent messages to the governors of the four prefectures of Wuwei, Beidi, Zhangye, and Jiuquan, instructing them to take precautions in advance.

......