The Bugojno group () was the name of a Croatian separatist paramilitary cell which was infiltrated into SFR Yugoslavia on 20 June 1972 to raise a rebellion against the socialist Yugoslav government. Background The Bugojno group was organized by the Croatian Revolutionary Brotherhood (Hrvatsko revolucionarno bratstvo or HRB). The HRB was formed in Australia in 1961 and was active in Europe and the United States. The founding principle of the HRB was the separation of Croatia from Yugoslavia, and the reestablishment of the Independent State of Croatia through the use of military force. Operation Phoenix After the suppression of the Croatian Spring movement in 1971, the HRB believed that there existed in Croatia a political climate which would support the beginning of an armed rebellion. After short preparations, the HRB organized their personnel, weapons and funding to support an initial group to start a rebellion. Most of the fighters and money came from Australia while the armed training was done in West Germany. After a short preparation in Austria, the 19-member group traveled through Dravograd into Yugoslavia by truck (the driver of which later reported them to police), on 20 June 1972. The Yugoslav territorial defense units soon began a massive search to find them. The insurgents were armed with M-16 and HK G-3 rifles. The group was named after the Bosnian town of Bugojno, as their goal was to reach the Raduša mountain south of the town. The operation was called "Phoenix" by the Croatian militants, while the counterinsurgency operation carried out by the Yugoslav forces bore the codename "Raduša 72". Of the 19 men, six were Australian citizens and a further three had lived in Australia. These were brothers, Adolf and Ambroz Andrić together with Filip Bešlić, Ilija Glavaš, Ilija Lovrić, Pavo Vegar, Djuro Horvat, Bejil Keškić and Mirko Vlasnović. The other members of the group were Viktor Kancijanić, Petar Bakula, Ludvig Pavlović, Stipe Ljubas, Vlado Miletić, Vinko Knez, Ivan Prlić, Nikola Antunac, Vidak Buntić and Vili Eršeg. Two other Croatian-Australian members of the HRB had been recruited for the Bugojno incursion but police action prevented their participation. Blaž Kraljević, who later became the commander of the HOS forces in the Croatian War of Independence, was arrested in Melbourne for liquor offences, while Zdenko Marinčic had been stopped at Frankfurt Airport with a firearm and four silencers hidden inside a toy koala. Marinčic, whose father was an Ustaša