Mezue ahịrịokwu na-esonụ: Ọchịchị ndị agha mmiri dị oke mkpa maka ọrụ amphibious rụrụ, dị ka mwakpo nke Northwest Africa (
Operation Torch), Sicily, Italy, na Normandy (Operation Overlord). Maka Operation Neptune ndị RN na RCN nyere 958 nke 1213 warships na atọ ụzọ n'ụzọ anọ nke 4000 ọdịda craft. Ojiji nke ọdụ ụgbọ mmiri Mulberry kwere ka ndị agha mwakpo ahụ nọgide na-enyeghachi ha. E nwekwara ụgbọ mmiri ndị rutere n'ebe ndịda France n'August.