 During the first two years of the Second World War he was on the staff of the Admiral commanding the 3rd Battle Squadron and the North Atlantic Escort Force, based in Halifax, Canada.During 1941 and 1942 he served in Moscow as Deputy Head of the British Naval Mission, and he was head of the Soviet section of British Naval Intelligence from 1946 to 1948.His service was marked with the award of the Order of the British Empire in 1949.