For years , Umarov had been the top terrorist leader in Russia . He had taken responsibility for several attacks on civilian targets since 2009 , including the 2010 Moscow Metro bombings and the 2011 Domodedovo International Airport bombing . In 2012 , Umarov ordered his followers to halt attacks on the civilian population of Russia , while leaving military and security personnel as legitimate targets . In July 2013 , however , he announced the end of this moratorium and calling on Islamic insurgents in the Caucasus and beyond to forcibly prevent the holding of the Sochi 2014 Olympics . Umarov was internationally wanted by the government of Russia and United States . In 2011 , the United Nations Security Council 's Al-Qaida and Taliban Sanctions Committee added Umarov to the list of individuals allegedly associated with al-Qaeda and Taliban
2011 Domodedovo International Airport bombing
Domodedovo International Airport bombing
Dokka Umarov