Factors such as the massive state-sponsored migration of Han Chinese from the 1950s to the 1970s, government policies promoting Chinese cultural unity and punishing certain expressions of Uyghur identity, and heavy-handed responses to separatist terrorism have contributed to tension between Uyghurs, and state police and Han Chinese. <unk> Factors such as the massive state-sponsored migration of Han Chinese from the 1950s to the 1970s, government policies promoting Chinese cultural unity and punishing certain expressions of Uyghur identity, and heavy-handed responses to separatist terrorism have contributed to tension between Uyghurs, and state police and Han Chinese. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk>
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