Slovenian Prime Minister Borut Pahor (L) shakes hands with his Croatian counterpart Jadranka Kosor before the signing on November 4, 2009 in Stockholm of a deal allowing international arbitration to resolve a thorny border dispute between Slovenia and Croatia that arose after the two states declared independence from ex-Yugoslavia in 1991. The row has blocked Croatia's European Union membership talks. Getty Images logo Getty Images 27 months ago

Slovenian Prime Minister Borut Pahor (L) shakes hands with his Croatian counterpart Jadranka Kosor before the signing on November 4, 2009 in Stockholm of a deal allowing international arbitration to resolve a thorny border dispute between Slovenia and Croatia that arose after the two states declared independence from ex-Yugoslavia in 1991. The row has blocked Croatia's European Union membership talks.