Italianization (; ; ; ; ; ) is the spread of Italian culture, language and identity by way of integration or assimilation. It is also known for a process organized by the Kingdom of Italy to force cultural and ethnic assimilation of the native populations living, primarily, in the former Austro-Hungarian territories that were transferred to Italy after World War I in exchange for Italy having joined the Triple Entente in 1915; this process was mainly conducted during the period of Fascist rule between 1922 and 1943. Regions and populations affected Between 1922 and the beginning of World War II, the affected people were the German-speaking and Ladin-speaking populations of Trentino-Alto Adige, and Slovenes and Croats in the Julian March. The program was later extended to areas annexed during World War II, affecting Slovenes in the Province of Ljubljana, and Croats in Gorski Kotar and coastal Dalmatia, Greeks in the Ionian islands and, to a lesser extent, to the French- and Arpitan-speaking regions of the western Alps (such as the Aosta valley). On the other hand, the island of Sardinia had already undergone cultural and linguistic Italianization starting from an earlier period. Istria, Julian March and Dalmatia The former Austrian Littoral (later renamed the Julian March) was occupied by the Italian Army after the Armistice with Austria. Following the annexation of the March by Italy, 400 cultural, sporting (for example Sokol), youth, social and professional Slavic organizations, and libraries ("reading rooms"), three political parties, 31 newspapers and journals, and 300 co-operatives and financial institutions had been forbidden, and specifically so later with the Law on Associations (1925), the Law on Public Demonstrations (1926) and the Law on Public Order (1926), the closure of the classical lyceum in Pazin, of the high school in Volosko (1918), the closure of the 488 Slovene and Croat primary schools followed. The period of violent persecution of Slovenes in Trieste began with riots on 13 April 1920, which were organized as a retaliation for the assault on the Italian occupying troops by the local Croatian population in the 11 July Split incident. Many Slovene-owned shops and buildings were destroyed during the riots, which culminated in the burning down of the Narodni dom ("National Home"), the community hall of the Triestine Slovenes, by a group of Italian Fascists, led by Francesco Giunta. Benito Mussolini praised this action as a "masterpiece of the Triestine fascism". Two years