The word "side by side" king of the Tang Dynasty

Later, young Li Changqing traveled through the Tang Dynasty and became Li Yuan's adopted son. Li Yuan ascended the throne and conferred Li Changqing as General Tiance. Prince Li Jiancheng and King Qi Li Yuanji launched the Xuanwumen Incident and ambushed Li Changqing, but was beheaded instead. Two hundred thousand Turkic troops came to the city, and Li Shimin signed the humiliating Wei River Alliance. Li Changqing led 80,000 white-robed troops to the King of Qin in Beijing, fought for three thousand miles, defeated the Turkic army, and...