The strategic deception of Britain and the United States can be said to be convincing, but if it fails to do a good job of secrecy and leaks the true feelings, then not only will the well-planned strategic deception be useless, but it will also bring disaster to the landing, so Britain has adopted unprecedented secrecy measures, codenamed "the diehard procedure." Pen ~ fun ~ pavilion www.biquge.info

First of all, in order to prevent Germany and Italy from obtaining information from Ireland, Britain and the United States forced Ireland to close the German and Italian embassies in Ireland and confiscate their radio equipment. On 9 February 1941, Britain severed all people-to-people relations with Ireland. On March 17, it further announced a blockade of Ireland and intercepted all aircraft and ships leaving Ireland without permission.

Second, in order to prevent diplomats stationed in the UK from obtaining information, the UK announced on April 17 that it would temporarily abolish its diplomatic privileges and prohibit diplomats from travelling in and out of the UK.

It is forbidden to use diplomatic mail, diplomatic embassies are prohibited from using radio stations to communicate with their countries, and in case of emergency, only radio stations and operators provided by the United Kingdom can be used; Diplomatic embassies of various countries are on full alert.

Third, strict news censorship is imposed on non-governmental news reports, and all reports must go through multiple checks before they can be published. Journalists were forbidden to send newspapers abroad, and newspapers and magazines were forbidden to be exported, in order to prevent Germany from obtaining information from them. All letters sent from the UK have been deferred since 25 June. Restrict the entry and exit of citizens into and out of the UK except for essential persons.

On 1 July, 10 miles of the southern coast of England, where the landing force had assembled, was declared a military exclusion zone, and from 6 July the troops were on leave, and all official correspondence and telephone calls of military and civil servants were censored. US military personnel are forbidden to use transatlantic telephones and telegraphs to communicate with the US mainland without authorization.

From 28 July, all troops participating in the initial landing were not allowed to leave the barbed wire fence and military police-inspected camps.

Landing plans have always been limited to carefully selected officers. Seven days before the D-day (i.e., the code name of the landing day), the landing date and plan are issued to the divisional commander.

Three days before the day of D, maps of the landing zone, nautical charts and other information on the enemy situation were distributed to the battalion commander. Two days before the day of D, combat orders were issued to all units. At the same time, 2,000 intelligence personnel closely monitored and inspected the officers and men of the units participating in the battle.

Despite such unprecedented secrecy measures, leaks still occurred from time to time, but thanks to timely remediation, the truth was not learned by the German army.

On May 22, 1941, the staff of the Chicago Post Office in the United States opened a military parcel containing a landing operation plan without permission, and the personnel concerned were immediately examined and monitored by the FBI, and it was finally found that it was only an accident.

On June 18, 1941, U.S. Army Major General Henry ? Miller was relieved of his duties, demoted to the rank of lieutenant colonel, and repatriated at a reception in London, England, after claiming that the Allies would attack France in early August.

On June 28, 1941, twelve top-secret documents related to the landing operation were blown into the street by the wind from the street windows of the British General Staff and scattered onto the road. At this time, everyone in the General Staff, from high-ranking officers to low-ranking clerks, rushed out as if they were facing a great enemy, looking for documents scattered in the streets. But only eleven copies were recovered, and just when everyone was anxious, a passer-by handed over the twelfth document to the sentry on duty, which was a false alarm.

So, how effective were the deception and secrecy measures of the Allies? The Allies deciphered the German code through "super-secret" and kept a close eye on the German reaction.

There are two kinds of codes in Rommel's command, one is the Engel code common to the German army, and the other is the original code, which the Allies have deciphered is the Engel code, and from the intelligence analysis that has been deciphered, the German commander on the Western Front, Rommel's "villain" who had attacked the British home fleet, has been deceived.

Because there were at least seven German infantry divisions and three panzer divisions moving towards the Calais area, in fact, the Allies did not know at all, these units were also fake, only the supplementary training regiments of those units were moving, and the main forces of the divisions did not move at all, but only kept radio silence.

At this time, a fortuitous incident occurred, when the Germans found the bodies of two American officers on the Omaha beachhead where the Allies had landed, carrying with them all the combat plans of the US 5th Army and the 7th Army that had not had time to destroy during the landing.

When this battle plan was handed over to Rommel, Rommel carefully read it and felt that this should be a real Allied landing operation plan, but how could it appear on the corpse of an American officer on Normandy Beach, and people were completely unwilling, Rommel immediately asked Major General Ronner, head of the German Western Front Intelligence Service, to deal with it.

Rommel's principle was to convince the Allies as much as possible that they had deceived themselves, that the Allied landing in Normandy was only a feint, and that the real landing was Calais.

Subsequently, the Chief of the General Staff of the US Army, Admiral Marshall, rushed to London and closely followed the movements of the German army together with the personnel of the Supreme Command and the London Supervision Office. Discussions were underway about bombing all bridges over the Seine, including those in the city of Paris, in order to stop German reinforcements. At midnight, the confidential secretary sent a message that the "super secret" had just received:

Rommel had already ordered the 15th Army to return to Calais, and the Germans in other parts of Western Europe rushed to reinforce Calais. -- Everyone was relieved that, although the fighting in Normandy was still raging, everyone knew that the landing was in full swing.

The most surprising was Anglo-American, who never imagined that the "Guardian Project" would be so successful. Chief of the General Staff of the British Army, Allen? Field Marshal Brooke said:

"Since Rommel is such a big fool, how can it take us so long and so much energy to defeat him?"

Then, British Prime Minister Winston Churchill and British Intelligence Director Menzies came to the High Command and spoke highly of the organization and implementation of the "Guardian Project": in the long history of British intelligence, this is the pinnacle!

But for Rommel, the traverser, they are just clown-like performances, and they don't even know what to do, and who is the fool will soon find out.

The assault echelon of the 82nd Airborne Division of the US Army is composed of the 505th, 507th, and 508th Paratrooper Regiments and reinforced detachments, with a total of 6,800 people, commanded by the division commander, Major General Ridgway, and carrying 369 transport planes, planning to be airborne on the west bank of the Mettler River west of St. Manygris, with the task of capturing St. Manygris, controlling the bridges and ferries of the Mettler River from Rafiel to Schiff Dubon, and ensuring the passage of the US 7th Army through the Mettler River.

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