Operating out of a mountain complex centered on Monte Sole, just Southeast of the town of Marzabotto, and sitting astride communications to Bologna, the Red Star was seen as a significant threat to the German rear, both in terms of cutting communications and obstructing a possible route of retreat.
The name of the place is unknown: it was partially inhabited later by the Gauls, but was not occupied by the Romans.
On Reder's direct orders the SS-Panzer-Aufklärungsabteilung 16 destroyed the village Marzabotto in reprisal for the local support given to the partisans and the resistance movement.
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In October 1951, Reder was sentenced to life imprisonment at Gaeta fortress prison, on the coast north of Naples, for ordering the destruction of Marzabotto and other villages near Bologna during the anti-partisan sweeps and for ordering the execution of Italian civilians in Tuscany and Emilia during the same period.
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Years later, a group of soldiers whom Reder had commanded in 1944 were tried and convicted for their role in the Marzabotto massacre.