[1] He served as the head of the Department of Cultural Relations for the Ministry of Foreign Affairs of the Independent State of Croatia,[1][2] a fascist puppet-state of Nazi Germany.

[2] During World War II, he worked as the head[1] the Department for Cultural Relations at the Foreign Ministry of the Independent State of Croatia[1][2] and served as the president of the Croatian Writers' Association.

[2] He was also a member of the European Writers' League (German: Europäische Schriftstellervereinigung), which was founded by Joseph Goebbels in 1941/42.

[3] After the Axis powers lost, he escaped to Rome,[1] then lived in Argentina and Brazil for sometime before immigrating to the United States in 1954.

[1][2] Between 1975 and 1981, he was the president of the Croatian Liberation Movement,[1] a far-right political party founded by Ante Pavelić, the former dictator of the Independent State of Croatia.