Complex sentence: The 2002--2005 trial of Slobodan Milošević at the ICTY included hundreds of witnesses and lasted until the death of Slobodan Milošević.
Split into simpler sentences: The 2002--2005 trial of Slobodan Milošević at the ICTY lasted for several years. There were hundreds of witnesses and the trial lasted until the death of Slobodan Milošević.