Everything in the world has a cause, and every effect has a cause behind it. This is an unshakable law.
The Three Kingdoms rose because the Eastern Han declined. The reason for the Eastern Han’s decline was quite unusual compared with that of other dynasties.
From the founding of the dynasty by Emperor Guangwu, the Eastern Han Empire’s armies were virtually invincible for nearly two hundred years. None of the surrounding barbarian powers, whether the Xiongnu, Qiang, or Wuhuan, could stand against the Eastern Han. The once-mighty Xiongnu were routed and fled far away to Central Asia. Even in the later years of the Eastern Han, the Han army’s fighting strength remained unmatched.
