China Goes to War for the "Heavenly Horses" of Ferghana
Han armies march 2,000 miles for warhorses strong enough to fight the Xiongnu's cavalry
Quick facts
- Target kingdom
- Dayuan, Ferghana valley
- Han general
- Li Guangli
- Campaigns
- 104 BCE (failed) and 102 BCE (successful)
- Outcome
- Dayuan surrendered breeding stock of "heavenly horses"
What happened
Zhang Qian's report told the Han court of a kingdom called Dayuan, in the Ferghana valley of modern Uzbekistan, that bred horses larger and stronger than any China could produce domestically, animals Zhang Qian himself described as sweating blood and descended from the "heavenly horse." Emperor Wu, whose cavalry desperately needed mounts capable of matching Xiongnu horses in size and stamina, sent missions to buy or demand them; when Dayuan refused and reportedly killed a Han envoy, Wu dispatched the general Li Guangli on two expeditions, in 104 and 102 BCE, that became known as the War of the Heavenly Horses. The first expedition, undersupplied for a nearly 2,000-mile march, failed. The second succeeded, and Dayuan surrendered several thousand horses, including the prized breeding stock, along with an agreement to send more annually.
Why it matters
The war extended Han military reach deep into Central Asia for the first time and made the exchange of silk for horses a recurring, almost institutionalized transaction along the route: the University of Washington's Silk Road Seattle project notes that the relationship between Chinese silk and nomadic or Central Asian horses continued to shape trade patterns across Asia for centuries afterward.
How we know
Zhang Qian's own description of the Ferghana horses survives as a quoted line in Han-era sources, translated and displayed alongside period art by the Silk Road Seattle project; the military campaign itself is recorded in Han court chronicles.
Sources
- Silk Road Seattle, University of Washington. Silk Road Art: Horses and Camels · Primary source (author-declared)depts.washington.edu · Cited as a "primary" source (no stronger domain match). · Link is live and its text matches the event's key terms (Jul 2026)
- Daniel C. Waugh, University of Washington, Silk Road Seattle. The Origins of the Silk Road (Wednesday University Lecture Series) · Primary source (author-declared)depts.washington.edu · Cited as a "primary" source (no stronger domain match). · Link is live and its text matches the event's key terms (Jul 2026)
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