In history, the State of Zhao was founded late, and it was only established during the Warring States Period (Wei, Zhao and Han were divided into Jin). At that time, except for Lu, Song, Wei and Zhongshan, there were only a few other countries. There was no question of uniting the ten countries, and it was impossible to unite. Although Su Qin's joint plan was realized and the six Kanto countries jointly fought against Qin, after all, they all made their own calculations, which were planned by Qin Lian Heng. Of course, in the historical process of Zhao's development, Zhao Wuling's riding and shooting reform was relied on to enhance the national strength. Many famous soldiers emerged, including Lian Po, Zhao She, Li Mu and Pang Man. And on its own, it destroyed Zhongshan State and Loufan State successively, becoming the only country that can fight against Qin State.