During the Qin and Han Dynasties, the northern frontier was invaded by ethnic minorities. What action did Emperor Wu take?

Militarily, take the initiative to attack, "we can go, so can I."

Wei Qing, Huo Qubing and other famous soldiers led the Han army, which defeated and annihilated the main force of Xiongnu in offensive operations for many times.

Resulting in the situation that "there is no Wang Ting in the desert".

In addition to military strikes, in diplomacy, Emperor Wu of the Han Dynasty also actively joined forces with other countries in the western regions to form a joint force against the Xiongnu and split and disintegrate the Xiongnu forces from within.

After Emperor Wu of the Han Dynasty took a series of measures, the Xiongnu lost the ability to attack the Han Dynasty again for a long time.