From left, Ukrainian parliamentarians Vitali Klitschko, leader of the UDAR (Ukrainian Democratic Alliance for Reform) party, Petro Poroshenko, and Andriy Shevchenko, Fatherland party, pose for the media outside 10 Downing Street for a meeting with British Prime Minister David Cameron and Foreign Secretary William Hague, London, Wednesday, March 26, 2014. (AP Photo/Sang Tan)