During the time of the Southern and Northern Dynasties, Zhang Sun Sheng, a wise sharp-shooting military attache from the Northern State, was sent on a mission: to escort the princess to the Turkic Clan’s territory in the northwest to be married.

The King of the Turkic Clan appreciated Zhang Sun Sheng’s shooting ability and went hunting with him. While on the hunt, they saw two big eagles in the sky fighting over a piece of meat, so the king asked him to shoot the eagles.

Unexpectedly, he shot both eagles at the same time. So now people usually use the idiom "一箭双雕" (shooting two hawks with one arrow) to describe a situation where one action can accomplish two goals.