As the palisade curved south at its eastern end, toward the mouth of the Yalu River, it was also meant to keep settlers from the Yalu River valley, which the early Qing government intended to maintain as an unpopulated "no man's land" along the Joseon border.
At its eastern end, the palisade curved southward toward the Yalu River's mouth; it was also designed to prevent settlers from occupying the Yalu River valley. The early Qing government intended this region as an uninhabited "no man's land" along the Joseon border.