Triệu dynasty. The name "Vietnam" (Việt Nam) is derived and reversed from Nam Việt, the Vietnamese pronunciation of Nanyue. History A detailed history of Nanyue was written in Records of the Grand Historian by Han dynasty historian Sima Qian. It is mostly contained in section (juan) 113, (Ordered Annals of Nanyue). A similar record is also found in the Book of Han Volume 95: The Southwest Peoples, Two Yues, and Chaoxian. Founding Qin southward expansion (218 BC) After Qin Shi Huang conquered the six other Chinese kingdoms of Han, Zhao, Wei, Chu, Yan, and Qi, he turned his attention to the Xiongnu tribes of the north and west and the Hundred Yue peoples of what is now southern China. Around 218 BC, the First Emperor dispatched General Tu Sui with an army of 500,000 Qin soldiers to divide into five companies and attack the Hundred Yue tribes of the Lingnan region. The first company gathered at Yuhan (Modern Yugan County in Jiangxi Province) and attacked the Minyue, defeating them and establishing the Minzhong Commandery. The second company fortified at Nanye (in modern Jiangxi Province's Nankang County), and was designed to put defensive pressure on the southern clans. The third company occupied Panyu. The fourth company garrisoned near the Jiuyi Mountains, and the fifth company garrisoned outside Tancheng (in the southwest part of modern Hunan Province's Jingzhou Miao and Dong Autonomous County). The First Emperor assigned official Shi Lu to oversee supply logistics. Shi first led a regiment of soldiers through the Ling Channel (which connected the Xiang River and the Li River), then navigated through the Yangtze River and Pearl River water systems ensure the safety of the Qin supply routes. The Qin attack of the Western Valley () Yue tribe went smoothly, and Western Valley chieftain Yi-Xu-Song was killed. However, the Western Valley Yue were unwilling to submit to the Qin and fled into the jungle where they selected a new leader to continue resisting the Chinese armies. Later, a night-time counterattack by the Western Valley Yue devastated the Qin troops, and General Tu Sui was killed in the fighting. The Qin suffered heavy losses, and the imperial court selected General Zhao Tuo to assume command of the Chinese army. In 214 BC, the First Emperor dispatched Ren Xiao and Zhao Tuo at the head of reinforcements to once again mount an attack. This time, the Western Valley Yue