From left, Slovenia's President Borut Pahor, U.S. Vice-President Joe Biden, Croatia's President Kolinda Grabar-Kitarovic and European Council President Donald Tusk attend a joint press conference after Brdo-Brijuni Process summit in Zagreb, Croatia, Wednesday, Nov. 25, 2015. U.S. Vice President Joe Biden arrived in Zagreb Wednesday for a Western Balkans summit, highlighting renewed interest from Washington in the fragile region as it deals with an unprecedented influx of refugees. (Pool Photo via AP)
