Washington is satisfied with Serbia's cooperation with the Hague tribunal over the past year, Prosper told reporters, adding that the job would not be finished until all the accused, and Bosnian Serb wartime leaders Radovan Karadzic and Ratko Mladic in particular, were arrested and transferred to The Hague.
Regardless of whether it is about Operation Storm or events in Bosnia-Herzegovina or Kosovo, the culprits must be brought to justice, the US ambassador said.
Earlier in the day Prosper and the US ambassador to Serbia and Montenegro, Michael Polt, had visited the refugee centre in Pancevo, just northeast of Belgrade, which provides shelter to more than 100 Serb refugees from Croatia, Bosnia-Herzegovina and Kosovo.
The US suffers with you, Prosper told the refugees, adding that his country wanted to pay tribute to Serb victims of the wars in the former Yugoslavia.
The US wishes to see Serbia and Montenegro moving forward into the European Union, to see a world in which refugees will be able to rebuild their lives. You can count on the US as a partner and a friend in that, Prosper said.
In the evening, Prosper met for talks with Serbian prime minister Vojislav Kostunica, who underlined the need for the completion of cooperation with the Hague war crimes tribunal.
On Thursday, Prosper is scheduled to meet Serbian war crimes prosecutor Vladimir Vukcevic and judges from the War Crimes Chamber of the Belgrade District Court.