In Cheng Guang's view, even though the Duke of the State belonged to the Heavenly Human Realm, he was not a significant issue for Emperor Zhou of Great Zhou.
After all, the strength of one man, no matter how formidable, would eventually be exhausted under the siege of thousands of troops and horses.
However, the Northern Expedition Army of one million was different: if one million troops stepped out together, even Emperor Zhou himself might not be able to handle the flood of one million soldiers.
Possibly, he wouldn't last even a day before being overrun by the surging Iron Cavalry.
After Cheng Guang entered North City, while observing the soldiers within the city, many of the soldiers passing by recognized him at a glance, believing that he must be the Princely Heir of Duke Zhen's Mansion.
Most of them, although they had mostly never seen Cheng Guang, had heard more or less about his deeds, and had some idea of what kind of person the Duke's Heir was.