How Often Have Emperors Known War?

[Traveling through ancient times + partially imaginary + multiple female protagonists + farming + extraordinary power, the pace is a little slow in the early stage, you can skip chapters to Chapter 5 or Chapter 11 to start reading. After thousands of years of war, how many times has the course changed? It's you who sings and I come back on stage. How have emperors ever known war? Li Chenggong, a college student, traveled back to the Five Dynasties and Ten Kingdoms where feudal lords and feudal lords came together in the changing times, and became Li Yu, the late lord of the Southern Tang Dynasty. In the past, Zhao and Song Dynasties were watching with eager eyes, and in the later period, the rise of Liao Dynasty was peering at the Central Plains... Wait, why are Xixia, Dameng, Liao and Jin fighting each other? What the hell are the Holy Crusaders and the Rebel Army fighting in a holy war? ? Where did this come from? Is this still the Five Dynasties and Ten Kingdoms? No matter! Forget about the front and forget about the back, in short... Let the Yellow River boil! Let the Yangtze River burn! Let these feudal emperors see what real... War!