Map of the Kingdom's Warfare.

Summary

Liu Lan Cheng led 10,000 inner guard troops into hiding in Anfu County, waiting for orders while the Tang army focused on Guo Shi Heng's forces. Li Shi Min's strategy to disrupt the Sui supply lines shifted, allowing Liu's troops to initiate their "Sharp Sword Operation." The Tang army's logistics hub in Danshui County was heavily fortified, but Liu planned an ambush, utilizing the terrain's weaknesses. As night fell, Sui soldiers stealthily approached the Tang camp, successfully eliminating sentries and igniting the warehouses simultaneously with a signal rocket. The ensuing chaos led to a brutal assault on the Tang camp, resulting in widespread destruction and the capture of Li Zhongwen. The fire consumed the entire warehouse complex, destroying 400,000 stones of grain and crippling the Tang army's supply chain.

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