The first organized anti-Fascist resistance activities in the Julian March began in the mid 1920s in the easternmost districts of the region (around
Postojna and
Ilirska Bistrica), on the border with
Yugoslavia. Local Slovene activists established contacts with the Yugoslav nationalist organization
Orjuna, launching first attacks at Italian military and police personnel. These were however still mostly individual actions, without an organizational background. The connections between the Slovene anti-Fascist activists and the Orjuna were soon broken due to a different ideological agenda. In September 1927, a group of Slovene
liberal nationalist activists met on the
Nanos Plateau above the
Vipava Valley, and decided to form an insurgence organization called TIGR, an abbreviation of the names for
Trieste,
Istria,
Gorizia, and
Rijeka. A few months later, another meeting took place in Trieste, where a group connected to the former established the organization
Borba (Fight), which also included some Croat activists from Istria. From the very beginning, the two groups worked in close alliance. The two organization were formed mostly by Slovene progressive nationalist youngsters from Trieste, the
Karst Plateau,
Inner Carniola, and the
Tolmin district. Between 1927 and 1930, the organization launched numerous attacks on individual members or supporters of the National Fascist Party (both Italian and Slovene), and also killed several members of repressive forces:
carabinieri, border guards, military personnel. In the
Gorizia region, the TIGR organization restrained from openly violent actions, and focused mostly on propaganda and on illegal educational, cultural and political activity among larger strata of the population. The Gorizia section of the TIGR established close connections with the underground Catholic network organized by
Christian Socialist activists, centered around the lawyer
Janko Kralj and priest
Virgil Šček. In Istria, the TIGR cell was led by
Vladimir Gortan, a Croat activist from Beram (near
Pazin). Differently from most Slovene cells, Gortan opted for open demonstrative actions, such as attacks on police convoys. In March 1929, during the Fascist plebiscite, when he raided a polling station near the town of
Pazin, killing one peasant. Soon afterwards, he was caught by the Italian police and executed. On 10 February 1930, in the headquarters of the newspaper
Il Popolo di Trieste, the TIGR places a bomb killing the editor Guido Neri. Three other journalists and typographers remained injured. In 1930 the
Italian fascist police discovered some TIGR cells. Numerous members of the organization were sentenced at the
First Trieste trial; four of them (
Ferdo Bidovec,
Fran Marušič,
Zvonimir Miloš and
Alojzij Valenčič), charged with murder, were sentenced to death and executed at
Basovizza () near Trieste. == Re-organization in the 1930s ==