Medari massacre
In 1990, following the electoral defeat of the government of the Socialist Republic of Croatia by the Croatian Democratic Union (Croatian: Hrvatska demokratska zajednica, HDZ), ethnic tensions between Croats and Serbs worsened.The military operation succeeded in capturing 558-square-kilometre territory in Western Slavonia from RSK forces.[6] Two sisters, Radmila and Mirjana Vukovic survived the massacre by chance because they went to high school in a nearby town in Bosnia and Herzegovina.[7] In April 2012, the State's Attorney Office of the Republic of Croatia in Osijek published that a criminal complaint was filed about the case on 15 September 2010, and that they were conducting an investigation into it.[8] In May 2013, they said they made inquiries with witnesses and relatives of the victims in collaboration with Serbian authorities, and requested more information from the ICTY and an investigation from the police.