Chapman, Annabelle, Ukraine's Big Three: Meet the Opposition Leaders at the Helm of Euromaidan , Foreign Affairs, Snapshot, 2014 A journalist expert on Ukraine assesses the three opposition politicians - Vitaly Klitschko, Oleh Tyahnybok, and Arseniy Yatsenyuk - who, after the 2012 parliamentary elections, created a 'united opposotion' and put themselves forward as 'leaders' of the Euromaidan protests.