Subsequently, Lu Yuan left ten thousand Forbidden Army and four thousand county soldiers to maintain order in this place, quelling the remaining unrest and watching over the more than forty thousand Yi prisoner soldiers captured during these days.
He and Huang Xuan then led the remaining fifty thousand Forbidden Army directly down to march towards Da Changhe Country.
On the fifteenth of April, Lu Yuan led the army to capture the Ke Department Country directly under the jurisdiction of Da Changhe Country, entering the core area of the country.
On the seventeenth of April, he led the army to break-through Nuodan City, seizing this major city in the northernmost region of Kunhai.
On the nineteenth of April, he led the army to approach Lu Dan City, where the Da Changhe Army and the Kunhai Army were battling each other. Successfully uniting with the Kunhai Army led by Li Xiong, they surrounded the Da Changhe Army from the south and the north.
