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Yuri is described as a powerful and militarily successful king. He conquered a Xianbei tribe in 9 BCE with the help of Bu Bun-no. In 3 BCE, Yuri moved the capital from Jolbon to Gungnae. The Han dynasty was overthrown by Wang Mang, who established the Xin dynasty. In 12 CE Wang Mang sent a messenger to Goguryeo to ask for troops to assist in the conquest of the Xiongnu. Yuri rejected the request and instead attacked Xin.