This handout picture taken and released by the Presidential press service on June 7, 2014 displays Ukraine's President Petro Poroshenko holding Bulava, the Ukrainian symboll of power, during a ceremony of his oath in the parliament in Kiev. Poroshenko, a 48-year-old billionaire, was sworn in as Ukraine's fifth post-Soviet president today, vowing to maintain the unity of his country amid a continuing crisis with Russia. Poroshenko won the presidential election on May 25 with 54.7 percent of the vote. AFP PHOTO / PRESIDENTIAL
Petro Poroshenko took oath of office as Ukraine's fifth president during a special meeting of parliament.