Aug 4 The Dieppe Raid — The Disastrous Allied Invasion of Nazi-Occupied Europe The British tried a “mini D-Day” in 1942 and it was a total failure Everyone has heard about D-Day — the 6 of June 1944, the day of the Allied invasion of Nazi-occupied Europe in World War II. However, there was another invasion two years prior to D-Day, the Dieppe Raid, which ended in a total failure for the Allies. The aim of the Dieppe Raid was to test German defenses, practice Allied invasion tactics, and gain valuable intelligence. However, the selection of the target was a...