23. Fortitude and Fortitude North
Operation Fortitude was a sub-plan of Bodyguard, which created a fictitious “First US Army Group” under the command of general George S. Patton. FUSAG’s existence was sold to the Germans by fake radio traffic between fictitious units, and allowing German air reconnaissance to photograph concentrations of FUSAG tanks and transports that were actually inflatable dummies. German intelligence was also fed fake reports through double agents and turned spies, about FUSAG’s intentions to invade the Pas de Calais. Another subsidiary, Fortitude North, created a fictitious British Fourth Army in Scotland, and convinced the Germans that it planned to invade Norway, so as to tie down the German divisions there.
