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In page Circassian genocide:

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Zass erected Circassian heads on poles outside of his tent, and witnesses reported seeing wind blowing the beards. Russian soldiers and Cossacks were paid for sending Circassian heads to General Zass.[42][43][44][45] Besides cutting Circassian heads off and collecting them, Zass employed a deliberate strategy of annihilating Circassians en masse, burning entire Circassian villages with the people in them and encouraging violation of Circassian women and children.[46][47] Zass is depicted as the Devil or Satan in Circassian folklore. In 1842, Zass was removed from service due to his methods being deemed too cruel by St. Petersburg.[citation needed]