Dee ihe na-aga n'ihu maka paragraf a - Rumbold debanyere aha na Royal New Zealand Naval Volunteer Reserve na 1941 a nabatara ya maka ọzụzụ ndị isi na England na Royal Naval College, Greenwich. Mgbe ọ gụsịrị akwụkwọ, ọ sonyeere ndị na-ebibi ihe, na-eje ozi dị ka onye na-esote lieutenant na Arctic convoys. Na 1943, o jere ozi n'ụgbọ mmiri "Inglefield" n'oge a na-alụ agha na Sicily
Ọ dị mma. Ọ lanarịrị ụgbọ mmiri na-eri mmiri na February 1944 n'oge Operation Shingle ma bụrụ onye ikpeazụ hapụrụ ụgbọ mmiri ahụ, na-enyere ndị ọrụ ndị ọzọ aka ịpụ, nke a kpọtụrụ aha na dispatches. Mgbe mmiri ahụ kpọnwụrụ, a họpụtara ya ka ọ bụrụ onye na-esote ọkọlọtọ na Rear-Admiral Gerald Dickens, soro ya jee ozi na North Africa, Brussels na The Hague.