Croatian Prime Minister Jadranka Kosor (L), Swedish Prime Minister Fredrik Reinfeldt (C) and Slovenian Prime Minister Borut Pahor pose before signing on November 4, 2009 in Stockholm a deal allowing international arbitration to resolve a thorny border dispute 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

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