Sicily
The Expedition of the Thousand led by Giuseppe Garibaldi captured Sicily in 1860, as part of the . The conquest started at Marsala, and native Sicilians joined him in the capture of the southern Italian peninsula. Garibaldi's march was completed with the Siege of Gaeta, where the final Bourbons were expelled and Garibaldi announced his dictatorship in the name of Victor Emmanuel II of Kingdom of Sardinia. Sicily became part of the Kingdom of Sardinia after a referendum where more than 75% of Sicily voted in favour of the annexation on 21 October 1860 (but not everyone was allowed to vote). As a result of the Kingdom of Italy proclamation, Sicily became part of the kingdom on 17 March 1861.
Italian Social Republic
In July 1943, after the Allies had pushed Italy out of North Africa and subsequently invaded Sicily, the Grand Fascist Council—with the support of King Victor Emmanuel III—overthrew and arrested Mussolini. The new government began secret peace negotiations with the Allied powers. When the Armistice of Cassibile was announced 8 September, Germany was prepared and quickly intervened. Germany seized control of the northern half of Italy, freed Mussolini and brought him to the German-occupied area to establish a satellite regime. The Italian Social Republic was proclaimed on 23 September 1943. Although the RSI claimed most of the lands of Italy as rightfully belonging to it, it held political control over a vastly reduced portion of Italy. The RSI received diplomatic recognition from only Germany, Japan and their puppet states.