 Complete the following phrase:  Operation Roland was a local German offensive inside the Soviet Union during the Second World War on the Eastern Front, and was conducted as a local operation within the overarching German summer offensive, Operation Citadel, on the southern side of the Kursk salient. The German forces of the III Panzer Corps and the 2nd SS Panzergrenadier Division Das Reich of the II SS Panzer Corps attempted to envelop and destroy Soviet forces of the Voronezh Front. This operation was necessitated by the failure of the German II SS Panzer Corps to break through Soviet forces during the 