TIGR, an abbreviation for Trst, Istra, Gorica, and Reka, full name Revolutionary Organization of the Julian March T.I.G.R. (Revolucionarna organizacija Julijske krajine T.I.G.R.), was a militant anti-fascist and insurgent organization established as a response to the Fascist Italianization of the Slovene and Croat people on part of the former Austro-Hungarian territories that became part of Italy after the First World War, and were known at the time as the Julian March. It is considered one of the first anti-fascist resistance movements in Europe. It was active between 1927 and 1941.
While the Austro-Hungarian Monarchy was a multi-national empire, which allowed a relatively large degree of cultural autonomy to the different peoples and ethnic groups, Italy was a nation state, and its governments had little intention of allowing the existence of separate national movements and identities on its territories. Issues regarding the use of Slovene and Croatian langua