After the failed ambush, the treaty was practically abrogated, the relations soured, the border traders were assaulted, in 127 BC the Chinese army attacked and expelled the Hun's tribes Leu-fan (楼烦, 樓煩, Leufang, Liufan, Loufan, Loufang) and Bayan (白羊王) from the Ordos, and then built fortifications and forts to retain the captured territory.