period of growth, economic prosperity, and military success, having consistently defeated the Xiongnu tribes along China's northern and northwestern borders. The weakened state of Nanyue and the strength of China at the time allowed Emperor Wu to unleash a devastating attack on Nanyue, as described above. With Changsha The Changsha Kingdom was, at the time, a feudal kingdom that was part of Han dynasty. Its territory comprised most of modern Hunan Province and part of Jiangxi Province. When Emperor Gaozu of Han enfeoffed Wu Rui as the first King of Changsha, he also gave him the power to govern Nanhai, Xiang, and Guiling Commanderies, which caused strife between Changsha and Nanyue from the start. The Han China-Nanyue border was essentially that of Changsha, and therefore was constantly fortified on both sides. In terms of policies, because the Kingdom of Changsha had no sovereignty whatsoever, any policy of the Han court toward Nanyue was by default also Changsha's policy. With Minyue Minyue was located northeast of Nanyue along China's southeast coast, and comprised much of modern Fujian Province. The Minyue were defeated by the armies of the Qin dynasty in the 3rd century BC and the area was organized under Qin control as the Minzhong Commandery, and Minyue ruler Wuzhu was deposed. Because of Wuzhu's support for Liu Bang after the collapse of the Qin dynasty and the founding of the Han, he was reinstated by the Han court as King of Minyue in 202 BC. The relations between Nanyue and Minyue can be classified into three stages: the first, from 196 BC to 183 BC, was during Zhao Tuo's first submission to the Han dynasty, and the two kingdoms were on relatively equal footing. The second stage was from 183 BC to 135 BC, when Minyue submitted to Nanyue after seeing it defeat the Han dynasty's first attack on Nanyue. The third stage began in 135 BC when King Wang Ying attacked a weakened Nanyue, forcing Zhao Mo to seek aid from Han China. Minyue once again submitted to the Han dynasty, making itself and Nanyue equals once more. With the Yi tribes The southwestern Yi people lived west of Nanyue, and shared borders with Nanyue in Yelang, Wulian, Juding, and other regions. Yelang was the largest state of the Yi people, comprising most of modern Guizhou and Yunnan Provinces, as well as the southern part of Sichuan Province. Some