Answer:
Emperor Wu of Han, Liu Che, was an ambitious and brilliant monarch. At the time of his reign, the Western Han Dynasty was in a better socio-economic and political situation after 60 to 70 years of recuperation. In order to consolidate and develop a unified multi-ethnic state and strengthen centralized authoritarianism, Emperor Wu carried out a series of activities to "promote internal meritocracy and external affairs for the barbarians".
Step-by-step explanation: