War of the Heavenly Horses

The War of the Heavenly Horses (simplified Chinese: 天马之战; traditional Chinese: 天馬之戰; pinyin: Tiānmǎ zhī Zhàn) or the Han–Dayuan War (simplified Chinese: 汉宛战争; traditional Chinese: 漢宛戰爭; pinyin: Hàn Yuān Zhànzhēng) was a military conflict fought in 104 BC and 102 BC between the Chinese Han dynasty and the kingdom of Dayuan, in the Ferghana Valley at the easternmost end of the former Alexander's empire (between modern-day Uzbekistan, Kyrgyzstan and Tajikistan). The war was allegedly instigated by trade disputes compounded by the extended geopolitics surrounding the Han-Xiongnu Wars, resulting in two Han expeditions that ended in a Han victory, allowing the Han dynasty to expand its hegemony deep into Central Asia (then known to the Chinese as the Western Regions).

Source: Wikipedia — War of the Heavenly Horses (CC BY-SA 4.0)