Belligerents
Cao Cao
Background
When Liu Biao died in 208 and his heir surrendered Jing Province without a fight, Liu Bei at Xinye was suddenly cut off. He fell back toward the arsenal at Jiangling — with over a hundred thousand refugees walking beside his army, slowing the march to a dozen li a day. Cao Cao picked five thousand elite horsemen and rode them down day and night.
Course
Caught at Changban near Dangyang, Liu Bei’s column was shattered; he fled with a few dozen riders, abandoning even his family. Into that chaos Zhao Yun turned his horse alone, found the infant Liu Shan and Lady Gan, and carried them out. Zhang Fei broke the bridge with twenty riders and bellowed his challenge — "I am Zhang Yide! Come and decide it!" — and none dared cross. At the Han ford, Liu Bei met Guan Yu’s boats and escaped to Xiakou.
Outcome & impact
A rout — but not annihilation, and that survival changed history. From Xiakou, Liu Bei could negotiate the alliance with Sun Quan, and two months later Red Cliffs turned the tide. Zhao Yun’s ride and Zhang Fei’s roar passed into legend, both anchored in the historical record.
History vs. the novelHistoryvsNovel
The seven charges through half a million men, Lady Mi’s leap into the well, Cao Cao forbidding archers to take Zhao Yun alive — all the novel’s flesh. The histories state only, and plainly, that Zhao Yun carried the infant back unharmed.