Doku (Dokka) Khamatovich Umarov (Chechen: Iумар КIант Доккa; Russian: Доку Хаматович Умаров; he also uses the Arabized name of “Dokka Abu Usman”) (born April 13, 1964) is the leading Islamist rebel leader in Russia. Umarov is the former underground President of the unrecognized Chechen Republic of Ichkeria (ChRI) between 2006 and 2007 and currently the […]