 Complete the following phrase:  Born the younger son of Rev. Sir Clennel George Rivett-Carnac, 6th Baronet, Rivett-Carnac joined the Royal Navy in 1910 and served in World War I and was mentioned in despatches. He became Commander-in-Chief of the New Zealand Division in December 1938. He also served in World War II as Director of Training and Staff Duties at the Admiralty from April 1940 and as Commanding Officer of the battleship HMS Rodney from 1941 before becoming rear-admiral in charge of the Normandy beaches during the 