2. Phantom army

The Allies put a lot of effort into trying to convince the Germans that the invasion was going to be near Calais, not Normandy.

They invented phantom field armies based in Kent as part of their D-Day deception plan, named Operation Fortitude.

They built dummy equipment – including inflatable tanks – parachuted dummies, used double agents and released controlled leaks of misinformation which led the Germans to believe the Allies were going to invade via the Pas-de-Calais and Norway.