Momcilo Perisic, the former chief of staff of the Yugoslav army, sits in the courtroom of the Yugoslav War Crimes Tribunal (ICTY) in The Hague February 28, 2013. U.N. war crimes court judges on Thursday overturned the conviction of the former chief of staff of the Yugoslav army, acquitting him of charges of aiding and abetting crimes committed in Bosnia and Croatia during the Yugoslav wars. Judges said Perisic, who was head of the Yugoslav army from 1993, had not directed ethnic Serb forces in Bosnia to use military aid sent from Belgrade for the commission of crimes. They also said he had not been in a position to discipline soldiers for shelling the Croatian capital Zagreb. REUTERS/Koen Van Weel/ANP/Pool (NETHERLANDS - Tags: POLITICS CRIME LAW CONFLICT)