The Dieppe Raid's catastrophic failure directly shaped Allied amphibious doctrine, informing the successful Normandy landings two years later.
Key Facts
- Men landed
- 6,086
- Allied casualties (killed/wounded/PoW)
- 3,623
- Canadian casualty rate
- 68%
- RAF aircraft lost
- 106
- German aircraft lost
- 48
- Operation duration
- Less than 6 hours before retreat
By the Numbers
Location
Cause → Event → Consequence
Allied planners sought to test the feasibility of a large-scale amphibious landing on German-occupied Europe, boost morale, demonstrate commitment to reopening the Western Front, and relieve pressure on the Soviet Union fighting on the Eastern Front. Intelligence gathering and the destruction of German coastal infrastructure were additional objectives.
On 19 August 1942, over 6,050 Allied troops — predominantly Canadian — supported by tanks, naval vessels, and RAF air cover, launched an amphibious assault on the port of Dieppe in northern France. German defences repelled the attackers; tanks became trapped on the beach, infantry was pinned by obstacles and fire, and within ten hours the operation was abandoned with catastrophic losses.
The raid resulted in 3,623 Allied casualties out of 6,086 men landed, with Canadians suffering a 68% casualty rate. Despite the disaster, both sides extracted lessons: the Allies developed artificial harbours, beach-adapted tanks, and integrated tactical air support, all of which contributed directly to the success of the Normandy landings in 1944.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
1 belligerent