infantrymen, predominantly
Canadian, were supported by large
British naval and Allied air force contingents. The objective was to seize and hold a major port for a short period, both to prove it was possible and to gather intelligence from prisoners and captured materials while assessing the German responses.
No major objectives of the raid were accomplished. 3,623 of the 6,086 men who made it ashore were either killed, wounded, or captured. The Allied air forces failed to lure the
Luftwaffe into open battle, and lost 119 planes, while the
Royal Navy suffered 555 casualties. The catastrophe at Dieppe later influenced Allied preparations for
Operation Torch and
Operation Overlord.