On 15 September, "Revenge" arrived in Plymouth where she came under the control of Western Approaches Command, in case of an invasion. If the German amphibious landing, codenamed Operation Sealion, had gone ahead as planned, "Revenge" would have been the only British capital ship in the English Channel area. Unknown to the British high command, Adolf Hitler had ordered that the invasion be postponed indefinitely on 17 September; however in the early hours of 11 October, "Revenge" formed the main element of Operation Medium, which aimed to bombard invasion transport ships and barges that were still concentrated in the French port of Cherbourg. "Revenge", six destroyers and a screen of motor gun boats formed the striking force, while a covering force of three cruisers and six destroyers patrolled to prevent German naval forces from interfering. There was a simultaneous air raid by RAF Bomber Command which also dropped flares to illuminate the target. During the 18-minute bombardment, "Revenge" fired 120 main-gun shells at the harbour while her escorts fired 801 rounds from their 4.7-inch guns. The British force came under accurate fire from German heavy coastal artillery but were able to retire undamaged, "Revenge" managed to make 21.5 knots on the return journey. On 13 November 1940, she resumed North Atlantic convoy duties, which continued without major incident well into 1941.