After 16 years on the lam, Ratko Mladic, former commander of the Bosnian Serb Army, was arrested last week just 80 kilometers from Belgrade. Mladic, along with fellow war criminals Slobodan Milosevic and Radovan Karadzic, was one of the most ruthless leaders of the Bosnian war, taking charge of the siege of Sarajevo and carrying out the massacre at Srebrenica. As Mladic awaits extradition to The Hague, NEWSWEEK replays its covers on Bosnia’s nightmarish war.