<Li> Raids on the Atlantic Wall </Li> <Li> Battle of Atlantic </Li> <P> The Dieppe Raid, also known as the Battle of Dieppe, Operation Rutter during planning stages, and by its final official code - name Operation Jubilee, was an Allied attack on the German - occupied port of Dieppe during the Second World War . The raid took place on the northern coast of France on 19 August 1942 . The assault began at 5: 00 a.m., and by 10: 50 a.m. the Allied commanders were forced to call a retreat . Over 6,000 infantrymen, predominantly Canadian, were supported by The Calgary Regiment of the 1st Canadian Tank Brigade and a strong force of Royal Navy and smaller Royal Air Force landing contingents . It involved 5,000 Canadians, 1,000 British troops, and 50 United States Army Rangers . </P> <P> Objectives included seizing and holding a major port for a short period, both to prove that it was possible and to gather intelligence . Upon retreat, the Allies also wanted to destroy coastal defences, port structures and all strategic buildings . The raid had the added objectives of boosting morale and demonstrating the firm commitment of the United Kingdom to open a western front in Europe . </P>

When did the battle of dieppe start and end
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