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
Oleksandr Bilash Andriyivna, was a solo singer at rural gatherings. After studying for a year in the Kiev music school for adults, Oleksandr traveled to the city of Zhytomyr where he entered the second year of the Viktor Kosenko Music School. In 1951, Bilash had successfully passed the entrance examinations for entry into the faculty of Composition of the Kiev State Conservatory (now The Tchaikovsky National Academy of Music). He studied composition with the outstanding Ukrainian composer and teaching professor Mykola Vilinsky. Oleksandr Bilash graduated from the Kiev State Conservatory in 1957. From 1956–1961 Bilash worked as an Instructor of music theory