Born in Zenica (Yugoslavia) in 1981 and currently working as a professor of art at the University of Banja Luka, Miljanović is a former soldier who highlights his experience of war and isolation in his art. His installations on a post-war society have been exhibited in over a dozen countries.
On July 15, 2019, the Gradska Gallery in Bihać opened its doors to The Didactic Wall, an installation created by Mladen Miljanović to aid and educate refugees while border crossing.