China in Central Asia: Nomads, Greeks, and Blood-Sweating Horses

In recent decades, Chinese involvement in Central Asia has intensified. This engagement—spanning political, military, and economic spheres—stems from Beijing's need to forge links with the Middle East and Europe while securing access to the region’s vast mineral and natural gas reserves.

A ceremony marking the start of work on a section of the China-Central Asia gas pipeline. Bukhara, Uzbekistan.

The "New Silk Road"—gas and oil lines from Central Asia to China.

Beyond resources, China hopes that regional economic development will stabilize Xinjiang. The local Uyghur population has long resisted religious and cultural suppression, as well as the influx of Han Chinese migrants. Today, the Han population nearly equals that of the Uyghurs—who make up about 45% of the total—and is expected to surpass it within a few years.

The Wild West. Xinjiang (新疆).

While the current trend is striking, this is hardly the first time China has looked with interest beyond the Tian Shan mountains.

The Mountains of Heaven. Tian Shan (天山).

The first contact between Chinese civilization and Central Asia occurred during the wars with the Xiongnu. The Han emperor dispatched General Zhang Qian to establish commercial and military ties with the peoples of the "Western Regions" (Xīyù), located far beyond the Jade Gate, the empire's westernmost frontier.

A section of the wall at the Jade Gate pass (玉门关 Yùmén Guān), today in Dunhuang, Gansu Province, China.

Zhang Qian’s hundred-man expedition set out to forge an alliance with the Yuezhi, a nomadic people driven from their lands by the Xiongnu. They had settled far to the west, beyond the Taklamakan Desert and the Tian Shan, on the northern bank of the Oxus River.

The Yuezhi were not eager to join a war against the fearsome Xiongnu, and Zhang Qian failed to secure his military pact. Instead, the general found something of equal value: horses.

Suitable warhorses were one of the few resources that a largely self-sufficient China could never successfully breed. As the empire adopted cavalry warfare to counter Xiongnu superiority, a steady supply of foreign mounts became a strategic necessity.

Chinese cavalryman, Tang Dynasty. Possibly a descendant of the heavenly horses of the Fergana Valley.

En route to the Yuezhi, Zhang Qian reached a fertile valley of walnut forests and fortified cities. The chronicles describe the inhabitants as fair-skinned, thick-bearded men who were fond of wine, which they produced from the valley's sprawling vineyards.

This was the Fergana Valley. Its inhabitants, the Dayuan, may have been Greeks (Yavana)—descendants of Alexander the Great's Macedonian conquerors. These Hellenistic kingdoms survived in Central Asia long after their Mediterranean counterparts had fallen; the last, ruled by Strato II in the Punjab, lasted until 10 CE. While the timeline of Zhang’s journey makes a direct Greek identification complex, they were likely descendants who had preserved their cultural identity.

Hellenistic stone gargoyle. Ai-Khanoum, Afghanistan.

A coin of Strato II. The last Hellenistic ruler in Central Asia. c. 10 CE.

The Fergana Valley remains a jewel of Central Asia, a prize for conquerors and a muse for poets. Babur, the founder of India's Mughal Empire, spent his life yearning for the orchards and murmuring streams of the valley he was forced to flee.

The Fergana Valley.

3D simulation of the Fergana Valley.

Alongside the grain and fruit, the people of Fergana raised something the Chinese considered worth its weight in gold: horses.

These horses were larger and stronger than the Xiongnu ponies and far superior to Chinese breeds. The Chinese called them "heavenly horses," though they are also known by the evocative name "blood-sweating horses." The nickname is still debated, but one likely theory is that a skin parasite, *Parafilaria multipapillosa*, caused them to bleed through their skin during exertion.

China was so desperate for these mounts that it sent ten trade missions in the wake of Zhang’s journey. Eventually, the residents of Fergana grew tired of the pressure, halted the trade, and killed a Chinese ambassador, seizing his gold.

The Chinese response was swift and furious. An army of ten thousand stormed the Fergana capital, Ershi (modern-day Khujand). Victory in this "War of the Heavenly Horses" secured a trade agreement and three thousand horses, a third of which made the long journey back to the Han capital of Chang'an.

This contact sparked a sophisticated trade network between China and the cultures of Bactria, Sogdia, and Parthia. Chinese silk began flowing through Parthia to the Roman Empire, where demand was so high it threatened to bankrupt the Roman treasury to the benefit of their Parthian rivals.

In return, exotic goods flowed eastward: raisins, Roman glass, lapis lazuli, and more. For the first time, the cultural barriers between East and West were breached, allowing goods, people, and ideas to traverse the Eurasian continent.

The Silk Road was born.

This was not a single path, but a shifting network of routes that evolved with the political and economic climate, linking China to the Middle East and Europe across mountain passes, deserts, and oases.

General route of the Silk Road.

Few terms hold more romantic charm for the Western ear than the one coined by the 19th-century German scholar von Richthofen. Names like Samarkand, Bukhara, and Kashgar conjure images of camel caravans laden with gold-woven fabrics, gemstones, and perfumes, and perhaps more fevered dreams of silk-clad maidens and exotic feasts.

While such vivid imagery might lean toward the hyperbolic, the Silk Road did indeed provide the luxury goods that allowed Roman women to wear the transparent fabrics that so incensed the stoic Seneca.

"I can see clothes of silk," he wrote, "if materials that do not hide the body, nor even one's decency, can be called clothes... herds of female weavers toil so that the adulteress may be visible through her thin dress."

Seneca. Declamations. Volume I.

Roman licentiousness. Fresco from Pompeii.

In reality, the trade was often more mundane: wax, glue, hides, grain, and dyes. These goods rarely traveled the entire route at once; instead, they moved in stages from city to city, traded by local merchants and nomads who relied on the markets for goods they could not produce themselves.

Long-distance trade was always at the mercy of politics. Wars, rebellions, and fragmentation caused the Silk Road to ebb and flow over the centuries.

The Han Dynasty marked the first great peak of this era.

While early Chinese missions reached the Parthian court and likely even the edges of Rome, China generally preferred a commercial and diplomatic presence in Central Asia rather than direct territorial conquest beyond the Tian Shan.

In the Tarim Basin, however, the Han cultivated client states to buffer against the Xiongnu. They established the Protectorate of the Western Regions in 60 BCE and built a string of outposts along the Hexi Corridor. These garrisons, housing tens of thousands of soldiers and their families, served as both fortifications and forward commercial bases. This security encouraged a steady stream of travelers and cultural exchange.

A watchtower from the Han Dynasty period. Dunhuang, Gansu, China.

The Han Empire (206 BCE – 220 CE). The Hexi Corridor is visible in the upper left corner, reaching the opening of the Tarim Basin.

One major byproduct of this presence was the spread of Buddhism. The Tarim Basin became a vital center for monasticism and translation. This proximity allowed the Buddhist Dharma to be gradually adapted to the Chinese worldview, eventually leading monks and meditation masters into the heart of China, where the faith would eventually flourish.

Shakyamuni Buddha. Greco-Bactrian statue. First century CE.

Even the fall of the Han Dynasty around 220 CE and the subsequent fragmentation of the Three Kingdoms did not sever these ties. In some cases, such as the Wei Kingdom’s patronage of Buddhism, the movement of people and ideas actually accelerated.

While China's direct influence in Central Asia would fluctuate with its political fortunes, its true golden age in the region was still to come.