Afterwards the "Grenville" took part in Operation Tunnel, (see Battle off Sept-Îles) with night sweeps to sink Axis shipping trying to reach Biscay ports. The "Grenville" was present when the cruiser was sunk, leaving Hill as Senior Officer to deal with the aftermath and to give evidence in a subsequent Board of Enquiry. Immediately after this action, the "Grenville" was ordered to the Mediterranean, where she was one of the supporting ships off the Anzio beachhead. Hill was transferred to the command of the destroyer HMS "Jervis", which was repaired after having her bows blown off by a guided bomb, in which he supported the Normandy landings in June 1944. By September 1944, "Jervis"s engines were heavily worn, and the destroyer took a long refit in Belfast. Hill was Mentioned in Despatches for his part in the Normandy landings. Hill was then sent to command an Air Station. Then, as a passenger in an ambulance, Hill sustained head injuries which led to his being invalided out of the service. He was placed on the retired list on 30 July 1946.