A neo fascist terrorist faction, founded by Bosnian Croat fascist Blaz Kraljevic. It was active during the 60s, made up of Croatian diaspora, with several former members and supporters of the Ustase who fled Europe to avoid charges of war crimes and collaboration. Its ideology mirrored that of the Ustase, to defend the independence and sovereignty of Croatia through the use of excessive violence.
The HRB were involved in several assassination attempts and bombings against Yugoslavia and Tito. In 1980 several of its most prominent members were imprisoned for possession of firearms and explosives. The so-called Croatian Six became focal political prisoners for the pro Ustase Croatians. The organisation crumbled as a result of legal pressure.