Han dynasty in Inner Asia

The Han dynasty in Inner Asia was the expansion of the Han dynasty's realm and influence in Inner Asia with a series of Chinese military campaigns and expeditions since the reign of the Emperor Wu of Han. Wars were mainly fought against the nomadic Xiongnu confederation based in the Mongolian Plateau, but also against other states in the Western Regions (especially in the Tarim Basin) like the Saka-ruled (Scythian) Greco-Bactrian Kingdom known to the Chinese as Dayuan.

Source: Wikipedia — Han dynasty in Inner Asia (CC BY-SA 4.0)