Long-range artillery on the German-occupied island of Alderney was disrupting Allied operations off the north west corner of the Cotentin Peninsula after the landings in Normandy. "Rodney" was tasked to eliminate the problem and bombarded Batterie Blücher on 12 August, taking up a position on the other side of the Cap de la Hague to avoid return fire. She fired 75 sixteen-inch shells at the artillery position, believing that three of the four guns had been damaged. Postwar analysis showed that although 40 shells had fallen within of the center of the battery, only one gun had actually been damaged and it was back in service by November. The other three guns resumed shooting at Allied ships by 30 August.