Lou Jing

The Western Han and its vassal kingdoms BC. The Xiongnu inhabited the eastern expanse of the Eurasian steppe to the empire's northwest. Lou Jing ( BC), also known as Liu Jing, was a soldier, advisor, noble, and diplomat under the early Western Han dynasty.

Life Lou Jing was a native of Qi, present-day Shandong, who served as a soldier during the Chu–Han Contention following the Fall of Qin. Immediately after the establishment of the Han dynasty in 202 BC, he was assigned to garrison duty in Longxi in eastern Gansu. When passing Luoyang, he saw his countryman General Yu, in 198 BC.

He also advised the emperor to limit the danger of the former ruling houses of the Warring States by settling their primary heirs in Chang'an, away from their independent power bases. Calling this "a policy of strengthening the root while weakening the branches" (, ), he also felt it would help protect the new capital against further incursion by the Xiongnu. Liu Bei adopted the proposal, moving around 100,000 of the eastern elite to the Guanzhong Region.

Works The bibliography section of the Book of Han lists Lou Jing as the author of a lost work called the , three chapters long.