Many believe that Dieppe was a failure because of inadequate reserves and firepower. The end result was that the troops were unable to break through the German line right above the beachhead.
In contrast, the Allies at D-Day had adequate reserves and provided ample firepower to allow troops to realistically break through the German lines.
The answer I beileve would be all of the above as progressives helped economics, social welfare, politically, and helped with the overuse of alcohol.
