During the multi-service conference where the Germans were trying to decide what Eddie's next mission should be, Baron Von Grunen reads an intelligence bulletin referring to reports of an army being formed in the Portsmouth area, "possibly to be commanded by General Patton". The Colonel General then comments "Identify this US Third Army...". In actuality the fake army Patton was supposed to be commanding was widely known as The First US Army Group (FUSAG) and was part of the disinformation campaign known as Operation Fortitude and was designed to make the Germans think the invasion would be at Calais. The Third Army wasn't a part of WWII combat operations until after the Normandy breakout when Patton assumed command.