Bulgaria EU Western Balkans Summit

German Chancellor Angela Merkel, center, speaks with Serbia President Aleksander Vusic, right, Kosovo's President Hashim Thaci, second left, and Bulgarian Prime Minister Boyko Borissov, left, during a group photo at an EU and Western Balkan heads of state summit at the National Palace of Culture in Sofia, Bulgaria, Thursday, May 17, 2018.(Vassil Donev, Pool Photo via AP)

Source: AP