The Prince of the Tang Dynasty

How did the young man of the 21st century who was reborn in the Tang Dynasty and became King Li Tai of Wei use the inertia of history and use the system in his hands to usher in the prosperous age of the Tang Dynasty? Li Tai: My father, the emperor, and his sons have a general who can pacify Goryeo. Li Tai: My father, the emperor, and my sons have an item that will eliminate the need for refugees in the Tang Dynasty. Li Tai: The father, the emperor, and his sons have a plan that will allow the Tang Dynasty to usher in the creation of thousands of kingdoms. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.