Another reason the battle of Dieppe was a defining moment was the lessons that were learnt from the mistakes made in this battle would facilitate in the planning of future battles. The first mistake was the lack and poor gathering of intelligence. Even though the Allies knew how well defended the port was, they did not survey the location to determine the landscape or any weakness of location and in the defence of the German forces. The beaches had lots of rocks so the tanks that were brought could not be of used against the German forces, resulting in lots deaths of Canadian troops. The Allies also underestimated the German Forces defence strategy as the Germ as they put up a smokescreen to black out the air support which really hurt the