U.N. judges demanded on Monday that former Yugoslav President Slobodan Milosevic stop wasting time and ask witnesses more focused questions as his marathon war crimes trial entered its third year. "You're going round and round in circles and you are consuming a lot of time. You have a specific number of days to present your case and you must use your time more prudently," presiding judge Patrick Robinson told Milosevic. The three judges trying Milosevic have said that up to Jan. 24, the former Serb strongman had used about 28 days of the 150 court days allocated for his defense. The court said last year that it wanted him to wrap up his case by October. Milosevic's trial at the U.N. tribunal in The Hague, which started on Feb. 12, 2002, has been delayed repeatedly by the poor health of the 63-year-old former president, who has a heart condition and high blood pressure. Milosevic called former Yugoslav Foreign Minister Vladislav Ivanovic as his latest defense witness on Monday.