The attack on Dieppe on August 18, 1942 was supposed to be a quick in-and-out raid but became one the worst military disasters in Canadian history. Pictured here, aftermath on Dieppe beach.

This battle demonstrated how important air power ... which helped them win the war. The Dieppe Raid On August 19, 1942, the Allies launched an attack on the German-occupied city of Dieppe, France.