King Victor Emmanuel III, Marshal Pietro Badoglio and their staff to Brindisi, which left the generals in charge of the city without a coordinated defence plan. This caused Allied support to be cancelled at the last minute since the Fallschirmjäger took the U.S. 82nd Airborne Division drop zones; Brigadier General Maxwell D. Taylor had crossed enemy lines and gone to Rome to personally supervise the operation. The absence of the Italian Centauro II Division, with its German-made tanks, contributed to the defeat of the Italian forces by the Germans. The division was composed primarily of ex-Blackshirts and was not trusted. By 10 September, the Germans had penetrated downtown Rome and the Granatieri (aided by civilians) made their last stand at Porta San Paolo. At 4 pm, General Giorgio Calvi di Bergolo signed the order of surrender; the Italian divisions were disbanded and their troops taken prisoner. Although some officers participating in the battle later joined the resistance, the clash in Rome was not motivated by anti-German sentiment so much as the desire to control the Italian capital and resist the disarmament of Italian soldiers. Generals Raffaele Cadorna Jr. (commander of Ariete II) and Giuseppe Cordero Lanza di Montezemolo (later executed by the Germans) joined the underground; General Gioacchino Solinas (commander of the Granatieri) instead opted for the pro-German Italian Social Republic. Piombino One of the most important episodes of resistance by Italian armed forces after the armistice was the Battle of Piombino in Tuscany. On 10 September 1943, during Operation Achse, a small German flotilla, commanded by Kapitänleutnant Karl-Wolf Albrand, tried to enter the harbour of Piombino but was denied access by the port authorities. General and Fascist official Cesare Maria De Vecchi in command of the Italian 215th Coastal Division ordered the port authorities to allow the German flotilla to enter, against the advice of Commander Amedeo Capuano, the Naval commander of the harbour. Once they entered and landed, the German forces showed a hostile behaviour, and it became clear that their intent was to occupy the town; the local population asked for a resolved reaction by the Italian forces, threatening an insurrection, but the senior Italian commander, general Fortunato Perni, instead ordered his tanks to open fire on the civilians - an order the tankers refused. Meanwhile De Vecchi forbade any action against the Germans. This however did not stop the protests; some junior officers, acting on their