Amelia Baptista AP World History Second period Confederacy of nomadic peoples Fierce mounted warriors 5th century B.C. Ruled in territory from western Manchuria to the Pamirs and covered most of Siberia and Mongolia Han-dynasty rulers tried to control the nomads by: Offering Chinese princesses Giving gold Silk Unfortunately, Xiongnu raids continued 3rd century B.C. Xiongnu formed a confederation under a ruler known as chanyu Great Wall of China was built to slow them down Xiongnu raid continued Expeditions were sent to negotiate alliances Large losses and expenditures incurred in fighting Xiongnu Han China won after expeditions into Central Asia about 112 B.C. Britannica, Encyclopedia. China: Relations with other peoples. 3 September 2011 <http://www.britannica.com/EBchecked/topic/111803/ China/71659/Relations-with-otherpeoples#ref589859>. Xiongnu. 1 September 2011. 3 September 2011 <http://www.britannica.com/EBchecked/topic/27396 0/Xiongnu>. The Han Empire. 3 September 2011 <http://depts.washington.edu/silkroad/exhibit/han/e ssay.html>.