During Jeremić's time in office, relations between Serbia and most of its neighbours improved dramatically. Relations with the European Union and the United States also improved, despite the dispute over Kosovo. In December 2009, the EU lifted visa restrictions on Serbia. Jeremić became the first Serbian citizen to enter the EU without a visa when he crossed the Hungarian border on 19 December and had his passport stamped by Hungarian Foreign Minister Péter Balázs. Jeremić's tenure saw Serbia fulfill its obligations towards the International Criminal Tribunal for the former Yugoslavia (ICTY), which was established by the international community to try individuals suspected of committing war crimes during the Yugoslav Wars. In July 2008, Serbian authorities arrested former Bosnian Serb leader Radovan Karadžić, who was indicted for war crimes, crimes against humanity and genocide by the ICTY and had been in hiding for eleven years. Karadžić was promptly extradited to the ICTY to face trial. Jeremić said the arrest demonstrated that Serbia was fully committed to becoming a member of the European Union. The arrests of Karadžić's military chief, Ratko Mladić, and Croatan Serb rebel leader Goran Hadžić, both of whom had been in hiding, followed three years later.