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 known to the Chinese as Dayuan, in the Ferghana Valley at the easternmost end of the former Persian empire, now the easternmost part of Uzbekistan. The result was a Han victory, and a temporary expansion of its hegemony deep into central Asia.[1][2]