islands through air and sea landings by infantry and Fallschirmjäger supported by the Luftwaffe. Both Campioni and Mascherpa were captured and executed at Verona for high treason. On 13 September 1943, the Acqui Division stationed in Cefalonia chose to defend themselves from a German invasion during ongoing negotiations. After a ten-day battle, the Germans executed 5,115 officers and enlisted men in retaliation. Those killed in the massacre of the Acqui Division included division commander General Antonio Gandin. Other Italian forces remained trapped in Yugoslavia following the armistice and some decided to fight alongside the local resistance. Elements of the Taurinense Division, the Venezia Division, the Aosta Division and the Emilia Division were assembled in the Italian Garibaldi Partisan Division, part of the Yugoslav People's Liberation Army. When the unit finally returned to Italy at the end of the war, half its members had been killed or were listed as missing in action. Bastia, in Corsica, was the setting of a naval battle between Italian torpedo boats and an attacking German flotilla. Italian military internees Italian soldiers captured by the Germans numbered around 650,000-700,000 (some 45,000 others were killed in combat, executed, or died during transport), of whom between 40,000 and 50,000 later died in the camps. Most refused cooperation with the Third Reich despite hardship, chiefly to maintain their oath of fidelity to the King. Their former allies designated them Italienische Militär-Internierte ("Italian military internees") to deny them prisoner of war status and the rights granted by the Geneva Convention. Their actions were eventually recognized as an act of unarmed resistance on a par with the armed confrontation of other Italian servicemen. Underground resistance In the first major act of resistance following the German occupation, Italian partisans and local resistance fighters liberated the city of Naples through a chaotic popular rebellion. The people of Naples revolted and held strong against Nazi occupiers in the last days of September 1943. The popular mass uprising and resistance in Naples against the occupying Nazi German forces, known as the Four days of Naples, consisted of four days of continuous open warfare and guerrilla actions by locals against the Nazi Germans. The spontaneous uprising of Neopolitan and Italian Resistance against German occupying forces (despite limited armament, organization, or planning) nevertheless successfully disrupted German plans to deport Neopolitans en masse, destroy the city, and prevent Allied forces from gaining a strategic foothold. Elsewhere, the nascent