2014 pro-Russian unrest in Ukraine Kiev and Mariupol, were struck by bombings that targeted pro-Ukrainian unity organizations. To maintain control over southeastern territories Ukraine's government started "antiterrorist operation" (ATO) sending armed forces to suppress separatists. Armed conflict between Ukraine's government forces and pro-Russian rebels is known as War in Donbass. Ukraine became gripped by unrest when President Viktor Yanukovych refused to sign an association agreement with the European Union on 21 November 2013. An organized political movement known as 'Euromaidan' demanded closer ties with the European Union, and the ousting of Yanukovych. This movement was ultimately successful, culminating in the February 2014 revolution, which removed
2014 Ukrainian revolution although the members of the Alpha team are Ukrainian citizens. On 21 February, President Yanukovych and Parliament declared 22 and 23 February to be days of mourning "due to the loss of human life as a result of mass disturbances". Speaker Rybak submitted his resignation in parliament on February 22, citing illness. Yanukovych's whereabouts were unknown, despite media reports that he had flown to Kharkiv (according to the governor of Kharkiv Oblast at the time, Mykhailo Dobkin, Yanukovych was in Kharkiv that day). Oleksandr Turchynov said that most of the ministers had disappeared, including Interior Minister Zakharchenko, who was reported