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The Turkic term oğuz or oğur (in z- and r-Turkic, respectively) is a historical term for "military division, clan, or tribe" among the Turkic peoples. With the Mongol invasions of 1206–21, the Turkic khaganates were replaced by Mongol or hybrid Turco-Mongol confederations, where the corresponding military division came to be known as orda.