In 311, in the midst of a period of disunity in China (220-589), the equestrians of the Xiongnu sacked Luoyang. This defeat helped to change warfare and brought horses into wider use in the Chinese military.
魏晉南北朝時期，西元三一一年匈奴騎兵洗劫洛陽，這場挫敗改變了戰爭的型態，戰爭裡騎兵的使用也因而更加頻繁。