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First United States Army Group


First United States Army Group

First United States Army Group
Insignia of First United States Army Group
Active 1943-1944
Country United States of America
Type Army Group
Role Military Diversion,
phantom formation
Omar N. Bradley
George S. Patton
Lesley J. McNair
William H. Simpson
John L. DeWitt

First United States Army Group was a fictitious George S. Patton was placed in command of the fabricated formation.


  • History 1
  • Subordinate units 2
  • See also 3
  • References 4
  • Further reading 5
  • External links 6


First U.S. Army Group—often abbreviated FUSAG—was activated in London in 1943 as the planning formation for the Allied invasion of France under General slapping a battle-fatigued soldier in Sicily.[1]

The deception worked so well that significant German forces remained in the Pas de Calais region for seven weeks after the real invasion at Normandy to defend against what they thought would be the true invasion force.[2]

Agents infiltrated by Germany into Britain who became double agents acting for Britain in the Double Cross System played a vital role in persuading the Germans that FUSAG was real. After it had become clear that Normandy, not Calais, was the invasion site, to preserve the credibility of the Double Cross network's agents in spite of the totally false information they had persuaded the Germans to believe, the Germans were persuaded that FUSAG had been real, but had been disbanded and attached to the forces at Normandy because the Normandy "diversion" had been so successful that the Calais landing had become unnecessary.

Subordinate units

(formations were shifted in and out of FUSAG periodically to aid military deception efforts and to accommodate actual needs)

See also


  1. ^ University of Texas - article on Operation Fortitude
  2. ^ Double Cross: The True Story of the D-Day Spies

Further reading

  • Jon Latimer, Deception in War, London: John Murray, 2001

External links

  • GlobalSecurity: First US Army Group
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