Jin Ridi was one of the most important ministers of Western Han dynasty although he was a Xiongnu originally.Xiongnu was the most serious trouble-maker in the frontier of the Western Han.

• 摘要西汉名臣金日磾为本匈奴人，却在汉武帝的朝廷受到重用，汉武帝一生功业以伐匈奴最为显著，匈奴既是当时国家的边患，也可以说是汉武帝的宿敌。