Have you ever thrown a surprise party for someone? Have you ever bluffed playing cards? Welcome to the ranks of intelligence deceivers.
The Trojan Horse legend survives to this day as a great deception operation. Whether the Trojan Horse story is true, a myth, or a metaphor, the story is fascinating. The Thought for this week deals with the greatest deception operation in history, Operation Bodyguard in WWII. One of the most fascinating aspects of the Bodyguard Operation was, how did the Allies keep this massive deception operation a secret? Over the next weeks I plan to discuss the various parts of Bodyguard with you alternating with other topics which you may suggest and the ongoing exigent events in world affairs.
As WWII progressed, the Germans knew an invasion was coming from the west and the Allies were aware they would face a stalwart set of Nazi defenses. The probability of success for the Allied invasion was problematic. Geography set the conventional wisdom for the location of the invasion beaches and the cyclical weather patterns limited the timing windows for a large-scale invasion. The Pas de Calais was the obvious geographic target for the invading forces setting sail from England. Late Spring and early summer presented the only reasonable times for a seaborne assault. Hitler and the German High command were initially convinced Pas de Calais would be the targeted beaches for an allied invasion.
To thwart any invasion from the west, the Germans built a potent line of fortifications and defense installations that stretched over 1,670 miles from Scandinavia to the French-Spanish border; the Germans called it the Atlantic Wall. The Atlantic Wall was three years in construction and took a monumental amount of German resources away from the desperate fighting on the Eastern front. These defenses were integrated to present a comprehensive in-depth killing zone for any invading force.
The defense system began beyond the beaches with mine fields and undersea obstacles which could impale landing craft. The beaches were carefully fit with barbed wire and minefields which would channel landing troops into kill zones covered by artillery, mortars, and machine guns, firepower which was pre-registered for accuracy on the kill zones. The next defense barrier behind the beaches was an array of mutually supporting bunkers and fortifications which could effectively redirect and concentrate fire on specific landing force targets.
The integration could be viewed as a defense anvil and a defense hammer. The anvil was the network of fixed defenses. The hammer was German tank and mechanized infantry units in reserve to deliver a coup de gras with a smashing counterattack after the landing troops had been decimated by smashing against the anvil.
However, there was a vulnerability in the German defense plan. The Germans did not have enough combat units to have the reserves in-depth along the length of the Atlanta Wall. Many of the experienced and combat-hardened panzer (tank) and mechanized units available for the Atlantic Wall reserve were sent to western France to refit and rest before returning to fight the Red Army on the Eastern Front. Therefore, the German High Command had the critical decision how to deploy the limited number of experienced combat troops for the Atlantic Wall reserve. The Germans needed accurate intelligence; what location did the Allies chose for landing the invasion force and when did the Allies plan to launch the invasion?
The Allies’ problem was even more daunting than the German challenge. The Allies did not have a sufficient number of ships and landing craft to launch two simultaneous invasions, Normandy and Pas de Calais. The Allies did not have adequate troop numbers to fight on more than one invasion front. The troops would have to attack across the beaches in sequential waves facing the lethal Atlantic Wall defenses. If the Germans could bring their panzer and mechanized units quickly to counterattack the Allied attempt to establish a beachhead, the Allied forces would be destroyed on the beaches and the invasion would fail. A failed invasion would extend the war and result in hundreds of thousands of additional casualties in the future. Finally, the invasion plan, Operation Overlord, was the largest and riskiest amphibious assault in the history of warfare. Logistically supporting the landing force during and after the landing was a potential Achilles Heel beyond the challenge of establishing the initial beachhead.
The mirror image problem for the Allies to the German need to know the where and when was to not just deny the Germans the knowledge of ‘where and when’ – but to make the Germans believe a false’ where and when’. The massive invasion plan required a massive deception plan to mislead and misdirect the German High command. Operation Bodyguard was the deception component of Operation Overlord.
Bodyguard had to be comprehensive, integrated, and had no room for errors. One compromise in the strategic deception would lead to an unraveling of the overall invasion plan with catastrophic consequences. Rounding out the high probability of compromise was the reality the Allies could not simply hide the 175,000 men preparing to assault the Nazis, the 5000+ ships needed to execute the invasion of Europe, 10,000 aircraft, and the airborne force of over 13,000 paratroopers. One German spy gaining information on the invasion, one German successful aerial reconnaissance, one German successful intercept of Allied communications could doom Overlord. The deception operation had to be credible in every resect and present no loose ends for the Germans to detect and exploit. Success hinged on the effectiveness of Operation Bodyguard.
Operation Bodyguard was an amalgam of moving parts consistent with the complexity of the Overlord plan. The major Bodyguard component operations were Fortitude North, Fortitude South, Twenty Committee (aka Double Cross), Graffham, and Royal Flush.
Deception in the purest sense is not just having the enemy accept the misinformation but for the enemy to embrace the deception as “objective truth” and then act on their belief in the “objective truth” – and in the world of smoke and mirrors, “objective truth” can be pure lies.
In future installments of the Thought for the Week, we will examine how successful Bodyguard was and the reasons for that success.
Originally Published 06.05.2022. Re-published with Permission from www.GaryBowser.net.