Southward expansion of the Han dynasty

Date	2nd century BCE
Location	South China and Northern Vietnam
Result	Baiyue tribes defeated and placed under Han rule Chinese migration southward and cultural assimilation Contact and trade with kingdoms in Southeast Asia

Belligerents

Han dynasty

Nanyue
Minyue
Âu Việt
Dian

The southward expansion of the Han dynasty comprises a series of military campaigns and expeditions in what is now modern South China and Northern Vietnam. Military expansion to the south began under the previous Qin dynasty and continued during the Han. Campaigns were dispatched against the Yue tribes, leading to the annexation of Minyue by the Han in 135 BCE and 111 BCE, Nanyue in 111 BCE, and Dian in 109 BCE.

Chinese culture influenced the newly conquered territories, and merged with native traditions. Han influences are apparent in artifacts excavated in the Baiyue tombs of southern China. This influence extended to the kingdoms of Southeast Asian, where contact led to trade and diplomacy. The demand for Chinese silk established trade routes between Europe, the Middle East, and China.

Military campaigns against the Baiyue began under the Qin, the dynasty that preceded the Han. The First Emperor of the Qin desired the resources of the Baiyue and ordered military expeditions against the region between 221 and 214 BC. He sent a large campaign against Lingnan in 214 BC, comprising conscripted merchants and soldiers. Military garrisons were installed, the Lingqu Canal was constructed, and new areas were placed under Qin administration. The collapse of the Qin caused the dissolution of Qin administration in southern China. Indigenous Yue kingdoms emerged in the former Qin territories, including the Nanyue kingdom in Guangxi, Guangdong, and Vietnam, Minyue in Fujian, and Eastern Ou in Zhejiang.

Supported by the Han, Minyue was established in 202 BC and Eastern Ou in 192 BC after the fall of the Qin dynasty.Zhao Tuo, a former Chinese commander of the Qin, established Nanyue in 208 BC after the death of the emperor Qin Shi Huang.Emperor Gaozu, first emperor of the Han dynasty, approved Zhao Tuo's new title as king. Zhao was born in the city of Zhending in Central China, and the ruling class of the new kingdom was composed of Chinese officials from the former Qin dynasty. In 180 BC, Zhao offered to submit as a vassal state and the Han accepted, a decision partly based on his family's northern Chinese ancestry.

...
Wikipedia