Map of the Kingdom's Warfare.

Summary

In the fourth watch of the night in Chang'an, the city is silent until a group of cavalry arrives with urgent military news. The Emperor, Li Yuan, is awakened and learns that the Sui army has captured Pu Jin Guan and He Dong Cheng, putting Guanzhong in danger. He quickly summons high-ranking officials to discuss the situation. The ministers speculate about the implications of this news, fearing for Taiyuan's safety. Li Yuan reveals the captured strongholds, causing panic among the officials, who question the Sui army's sudden appearance. General Ma Sanbao analyzes the situation, suggesting the Sui army launched a surprise attack, likely coming through Zhi Pass. The chapter ends with Li Yuan seeking advice on how to respond to this crisis.

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