If the plan had worked I’m sure the buildings where the enigma machines had been taken from would have been destroyed, set on fire etc. This would have given the Germans one big headache.

Well, I think if the buildings were set on fire the Germans would have to assume that the codes were taken…..unless the whole town was burnt down!

The Germans made some serious mistakes with Enigma but they weren’t that stupid!

It wouldn’t have been that big a headache for the Germans; Enigma is really a concept rather than an individual code. New Enigma ‘rotors’ and ‘tables’ could have been issued (as was done periodically anyway). What is worse; changing your codes or letting the enemy read them?

Interesting that you mention ‘Operation Fortitude’; I am reading that at the moment.