The Donghu were a famous nomadic tribe located in the north of the Yao Kingdom. They gradually grew and established a country, called the Northern Liang Kingdom. Later, they took advantage of the natural disasters, man-made disasters and weak national power of the Yao Kingdom to constantly invade the borders and try to compete in the Central Plains. When the Yao Kingdom was in crisis, General Ling Yun and Prime Minister Bai Li led their troops northward...
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