Both men have pleaded not guilty to crimes including murder and persecution as crimes against humanity

Jovica Stanišić (L) and Franko Simatović appear in court for their re-trial at the United Nations tribunal for the former Yugoslavia in The Hague, June 13, 2017.

Two ex-Milošević aides played pivotal role in 1990s Balkan wars: U.N. prosecutors

The interview with Azem Vlasi, which was done through a lawyer, was perceived as a serious disgrace for Milošević's security forces, a disgrace for the Counterintelligence Service, the police and the guard services

Radončić and the Vlasi: Political victims

Two ex-Milošević aides played pivotal role in 1990s Balkan wars: U.N. prosecutors

Radončić: After 30 years, I can reveal a secret connection to Azem

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Two ex-Milošević aides played pivotal role in 1990s Balkan wars: U.N. prosecutors

Radončić: After 30 years, I can reveal a secret connection to Azem