- The Allies would launch a combined air, land, and sea assault on Normandy, France.
- The airborne assault would be conducted by American, British, and Canadian paratroopers, who would land behind enemy lines and secure key bridges and roads.
- The amphibious assault would be carried out by American, British, and Canadian infantry divisions, who would land on the beaches of Normandy and fight their way inland.
- The naval bombardment would be provided by British, American, and Canadian warships, which would soften up German defences before the troops landed.
- The air assault would be provided by British, American, and Canadian fighter and bomber aircraft, which would provide close air support for the troops on the ground.