King Zhaoxiang of Qin
In 293 BC, East Zhou decided to ally itself with the states of Han and Wei, and sent troops to help attacking Qin. However, the combined forces of this alliance was destroyed at Yique by the young Qin general Bai Qi, with 240,000 men killed and their commander Gongsun Xi (公孫喜) captured and executed. After this loss, the East Zhou was unable to actively participate in future interstate struggles in any significant fashion.
In 256 BC, Duke Wu of West Zhou (西周武公) allied with other states to stop the Qin offensive on the Han city of Yangcheng. In retaliation, King Zhaoxiang of Qin sent general Jiu to invade West Zhou, successfully breaking into Wangcheng. The Duke Wu was taken to Xianyang to beg for mercy, conceding all his lands. Both King Nan and Duke Wu would die later that year, and the subsequent Duke of West Zhou, Duke Wen (西周文公), was exiled to Danhuju (憚狐聚). Because the Zhou royal court had fallen from power and King Nan had died without a successor, the Eastern Zhou Dynasty collapsed, ending 879 years of Zhou monarchy. The remaining East Zhou state was also conquered by Qin chancellor Lü Buwei seven years later in 249 BC during the reign of King Zhaoxiang's grandson King Zhuangxiang, after Duke Jing of East Zhou attempted to form an anti-Qin alliance with other states.
Wuchuan County, Inner Mongolia
Around 302BC, Wuchuan belonged to the State of Zhao (赵国), one of the Warring States. The king of Zhao defeated Hulinloufan and built a wall near Daqing Mountain to stop the advance of the northern tribes. This event was recorded in the "Water Jingzhu" (水经注). The wall is now called the South Daqing Mountain Great Wall. Wuchuan also plays a role in the history of the Qin Dynasty and the Han Dynasty, especially the Battle of Changping (长平之战) of Zhao Kuo (赵括). During this time, Wuchuan was controlled by the Xiongnu, a nomadic people famous for their bronzes and animal carvings. A Xiongnu dagger together with some knife-shaped coins from the State of Yan were unearthed at Tuchenzi Village, indicating that cultural exchanges between the Xiongnu and the Han Chinese were very extensive at that time. A total of more than 20 ancient tombs of the Qin and Han period have also been discovered in Wuchuan.