Serbia has confirmed reports that the fugitive military general, Ratko Mladic, has been arrested more than 15 years after his indictment for genocide. Mladic is wanted for his role in the 1995 Srebrenica massacre and the siege of Sarajevo. His arrest has long been seen as a precondition for Serbia’s membership in the European Union. Serbian officials say a man believed to be Mladic is in custody and undergoing testing to determine his identity.