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Operation Fortitude was a military deception operation by the Allied nations as part of Operation Bodyguard, an overall deception strategy during the buildup to the 1944 Normandy landings. Fortitude was divided into two subplans, North and South, and had the aim of misleading the German High Command as to the location of the invasion.
Operation Bodyguard was the code name for a World War II deception strategy employed by the Allied states before the 1944 invasion of northwest Europe. Bodyguard set out an overall stratagem for misleading the Oberkommando der Wehrmacht as to the time and place of the invasion. Planning for Bodyguard was started in 1943 by the London Controlling Section, a department of the war cabinet. They produced a draft strategy, referred to as Plan Jael, which was presented to leaders at the Tehran Conference in late November and, despite skepticism due to the failure of earlier deception strategy, approved on 6 December 1943.
Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II. The planned operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, the Soviet declaration of war, and the invasion of Manchuria. The operation had two parts: Operation Olympic and Operation Coronet. Set to begin in November 1945, Operation Olympic was intended to capture the southern third of the southernmost main Japanese island, Kyūshū, with the recently captured island of Okinawa to be used as a staging area. In early 1946 would come Operation Coronet, the planned invasion of the Kantō Plain, near Tokyo, on the main Japanese island of Honshu. Airbases on Kyūshū captured in Operation Olympic would allow land-based air support for Operation Coronet. If Downfall had taken place, it would have been the largest amphibious operation in history, surpassing D-Day.
The Twelfth Army was a British Army formation during the Second World War. The Twelfth Army denotation was actually used twice; firstly, in 1943, for a fictional formation and secondly, in 1944/45, in Burma.
Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II.
The Fourth Army was a field army that formed part of the British Expeditionary Force during the First World War. The Fourth Army was formed on 5 February 1916 under the command of General Sir Henry Rawlinson to carry out the main British contribution to the Battle of the Somme.
Operation Copperhead was a small military deception operation run by the British during the Second World War. It formed part of Operation Bodyguard, the cover plan for the invasion of Normandy in 1944 and was intended to mislead German intelligence as to the location of General Bernard Montgomery. The operation was conceived by Dudley Clarke in early 1944 after he watched the film Five Graves to Cairo. Following the war M. E. Clifton James wrote a book about the operation, I Was Monty's Double. It was later adapted into a film, with James in the lead role.
NATO designations are specified in Allied Administrative Publication AAP-6 NATO Glossary of Terms and Definitions, and marked (NATO) in this list. Entries specific to the U.S. and defined only in Joint Publication JP 1-02 are marked (US).
Operation Ironside was a Second World War military deception undertaken by the Allies in 1944. It formed part of Operation Bodyguard, a broad strategic deception plan instigated by the Allies throughout the year to help cover the June 1944 invasion of Normandy. Ironside supported the overall deception by suggesting to the Germans that the Allies would subsequently land along the Bay of Biscay. It complemented efforts to deceive the Germans into believing that the Allies would also land in southern France at this time. Bordeaux was an important port for the German war effort and had already been a target of commando raids two years earlier. Ironside intended to play on German fears of an invasion in the region, with the aim of tying down defensive forces following Operation Overlord in June 1944.
Operation Zeppelin was a major military deception operation run by the British during the Second World War. It formed part of Operation Bodyguard, the cover plan for the invasion of Normandy in 1944, and was intended to mislead German intelligence as to the Allied invasion plans in the Mediterranean theatre that year. The operation was planned by 'A' Force and implemented by means of visual deception and misinformation.
Operation Titanic was a series of military deceptions carried out by the Allied Nations during the Second World War. They formed part of tactical element of Operation Bodyguard, the cover plan for the Normandy landings. Titanic was carried out on 5–6 June 1944 by the Royal Air Force and the Special Air Service. Its objective was to drop hundreds of dummy parachutists, noisemakers and small numbers of special forces troops in locations away from the real Normandy drop zones. It hoped to deceive the German defenders into believing that a large force had landed, drawing troops away from the beachheads and other strategic sites.
The 76th Infantry Division was an infantry division of the British Army, which was formed in November 1941 and served during the Second World War. It was created when the Norfolk County Division, initially raised in 1940 to defend the Norfolk coast from a potential German invasion, was redesignated. The division maintained the defensive duties that had been assigned to it, prior to it being renamed, until late 1942 when it became a training formation. It was then responsible for providing final tactical and field training to soldiers who had already passed their initial training. After five additional weeks of training, the soldiers were posted to fighting formations overseas. The formation was used as a source of reinforcements for the 21st Army Group, that was fighting in the Normandy campaign. After all available British troops had left the United Kingdom for France, the division was disbanded in September 1944.
First United States Army Group was a fictitious Allied Army Group in World War II prior to D-Day, part of Operation Quicksilver, created to deceive the Germans about where the Allies would land in France. To attract Axis attention, prominent US general George S. Patton was placed in command of the fabricated formation.
The 80th Infantry (Reserve) Division was an infantry division of the British Army formed at the beginning of 1943, during the Second World War. For the twenty months that the division existed, it was a training formation. It was made responsible for providing final tactical and field training to soldiers who had already passed their initial training. After five additional weeks of training, the soldiers would be posted to fighting formations overseas. Notably, the division was used as a source of reinforcements for the 21st Army Group, which was fighting in Normandy. After all available troops left the United Kingdom for France, the division was disbanded.
Operation Cockade was a series of deception operations designed to alleviate German pressure on Allied operations in Sicily and on the Soviets on the Eastern Front by feinting various attacks into Western Europe during World War II. The Allies hoped to use Cockade to force the Luftwaffe into a massive air battle with the Royal Air Force and U.S. Eighth Air Force to give the Allies air superiority over Western Europe. Cockade involved three deception operations: Operation Starkey, Operation Wadham, and Operation Tindall. Operation Starkey was set to occur in early September, Operation Tindall in mid-September, and Operation Wadham in late September 1943.
The 9th Airborne Division of the United States Army was a military deception created in 1944 as part of Fortitude South II
The United States Army created a large number of notional deception formations that were used in a number of World War II deception operations. The most notable fictional US formation was the First U.S. Army Group (FUSAG); this field army was originally intended as the main invasion force for the Invasion of Normandy, however that was renamed to the 12th Army Group. FUSAG remained in existence on paper and was used during Operation Fortitude South to divert Axis attention to the Pas de Calais area.
Operation Ferdinand was a military deception employed by the Allies during the Second World War. It formed part of Operation Bodyguard, a major strategic deception intended to misdirect and confuse German high command about Allied invasion plans during 1944. Ferdinand consisted of strategic and tactical deceptions intended to draw attention away from the Operation Dragoon landing areas in southern France by threatening an invasion of Genoa in Italy. Planned by Eugene Sweeney in June and July 1944 and operated until early September, it has been described as "quite the most successful of 'A' Force's strategic deceptions". It helped the Allies achieve complete tactical surprise in their landings and pinned down German troops in the Genoa region until late July.
