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In the final years of the Eastern Han Dynasty, the imperial capital Chang’an fell under the control of warlords Li Jue and Guo Si, former generals of Dong Zhuo who had seized power after his assassination. By 195 AD, however, their alliance had crumbled into bitter rivalry.
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As tensions between Li Jue and Guo Si escalated, their covert rivalry erupted into open warfare. In March 195 AD, the conflict reached a critical point: Li Jue seized Emperor Xian of Han as a hostage, while Guo Si retaliated by detaining the imperial ministers.