The collapse of the Qin empire encouraged a resurgence among the Xiongnu led by Modu Chanyu, who united the Xiongnu tribes and reoccupied the Ordos Loop. In 200 BCE, Gaozu personally led a ...

Hundreds of thousands of men served in Qin armies, mobilized to defend against Xiongnu nomads in the north and other tribes in the south. Hundreds of thousands more toiled to build palaces ...