The Italian Civil War (Italian: Guerra civile italiana, pronounced [ˈɡwɛrra tʃiˈviːle itaˈljaːna]) was a civil war in the Kingdom of Italy fought during the Italian campaign of World War II between Italian fascists and Italian partisans (mostly politically organized in the National Liberation Committee) and, to a lesser extent, the Italian Co-belligerent Army.
Many Italian fascists were soldiers or supporters of the Italian Social Republic, a collaborationist puppet state created under the direction of Nazi Germany during its occupation of Italy. The Italian Civil War lasted from around 8 September 1943 (the date of the Armistice of Cassibile, between Italy and the Allies) to 2 May 1945 (the date of the Surrender at Caserta). The Italian partisans and the Italian Co-belligerent Army of the Kingdom of Italy, sometimes materially supported by the Allies, simultaneously fought against the occupying Nazi German armed forces. Armed clashes between the fascist National Republican Army of the Italian Social Republic and the Italian Co-belligerent Army of the Kingdom of Italy were rare, while clashes between the Italian fascists and the Italian partisans were common. There were also some internal conflicts within the partisan movement. In this context, Germans, sometimes helped by Italian fascists, committed several atrocities against Italian civilians and troops.