Miletić was one of the most active members of the committee of the Serbian Academy of Sciences and Arts for the collection of documents on the Genocide against Serbs and other peoples in Yugoslavia in the 20th century, from 1986 to 1994, when the committee ceased its work. With his colleague Vladimir Dedijer, Miletić wrote about what he saw as a Genocide of Bosnian Muslims committed by the Chetniks during World War II in a volume entitled "Genocid nad Muslimanima" published in 1990.