Ivan Srebrenjak or Srebrnjak (1903 – 21 May 1942) ran a Soviet intelligence network for the NKVD in the Balkans at the beginning of Axis occupation of Yugoslavia. Srebrenjak was born in 1903 in Austro-Hungarian region of Slavonia that became part of Yugoslavia in 1918. Srebrenjak became a member Yugoslav Communist Party since 1928. After he killed a Yugoslav policeman in 1930 he left Yugoslavia and became a member of a group of Stalin's killers known as "liquidators" headed by Josip Broz Tito. When Axis forces occupied Yugoslavia in 1941 Srebrenjak returned to Yugoslavia and set up an NKVD centre in Zagreb, a part of Red Orchestra network. Tito considered him as an enemy and requested approval from Stalin to relieve Srebrenjak of that position, which was refused by Stalin. Subsequently, Sr