Emperor Wu of Han (pinyin: H?nw?d?; WadeGiles: Wu Ti), (156 29 March, 87 BCE), personal name Liu Che, was the seventh emperor of the Han Dynasty of China, ruling from 141 to 87 BEC. Emperor Wu is best remembered for the vast territorial expansion that occurred under his reign, as well as the strong and centralized Confucian state he organized. He is cited in Chinese history as the greatest emperor of the Han dynasty and one of the greatest emperors in Chinese history. Emperor Wu's effective governance made the Han Dynasty one of the most powerful nations in the world. As a military campaigner, Emperor Wu led Han China through its greatest expansion  at its height, the Empire's borders spanned from modern Kyrgyzstan in the west, to Korea in the northeast, and to northern Vietnam in the south. Emperor Wu successfully repelled the nomadic Xiongnu from systematically raiding northern China and dispatched his envoy Zhang Qian in 139 BC to seek an alliance with the Yuezhi of modern Uzbekistan. This resulted in further missions to Central Asia. Although historical records do not describe him as a follower of Buddhism, exchanges probably occurred as a consequence of these embassies, and there are suggestions that he received Buddhist statues from central Asia, as depicted in Mogao Caves murals.