Reddit reviews D-Day: June 6, 1944: The Climactic Battle of World War II

Here is a quote from Jon Guttman a research director at the
Weider History Group

>Given the size, scope, location, and timing of D-Day, there was little room for alternate scenarios if Operation Overlord had failed. Calais was closer, but Adolf Hitler expected that to be the landing zone and had the most powerful defenses there (Operation Fortitude had been designed to keep him expecting the landing to be there even as the Allied force was heading to Normandy). The weather was a critical factor—it delayed the invasion for days and failure on June 6 would have held up any further action for two weeks—at which point the Channel would have been experiencing its worst storms in years (June 19-22). Failure was really not an option and nobody, least of all General Dwight D. Eisenhower, was able or willing to consider anything short of success. Everyone involved conducted themselves accordingly, which (combined with virtually complete Allied air superiority) assured that there would not have to be a "Plan B."

Source

To reaffirm what Mr. Guttman said, I believe I read this in this book: D-Day: June 6, 1944: The Climactic Battle of World War II

It was mentioned that during planning, they were ready to throw everything they had into D-Day. Due to the massive scope of the invasion and planning, it was unlikely at all there was a Plan B, at least not one that was as detailed as Operation Overlord. Depending on the outcome of the failure, some have speculated perhaps Hitler would launch another invasion of Britain, but if you want to read about D-Day speculation if it failed, there are a few sources, books etc that may have some historical merit. From the book, it is mentioned that it crossed the minds of the generals what would happen if failure ensued. But the constant mind set by the military commanders at the time was "We must succeed."

One last thing when Eisenhower addressed the troops before the invasion you can speculate (now that we have the foresight) that there was nothing else. This was it. If you can't see the above, below is the broadcast given by Eisenhower:

>Soldiers, Sailors and Airmen of the Allied Expeditionary Force!

>You are about to embark upon the Great Crusade, toward which we have striven these many months. The eyes of the world are upon you. The hopes and prayers of liberty-loving people everywhere march with you. In company with our brave Allies and brothers-in-arms on other Fronts, you will bring about the destruction of the German war machine, the elimination of Nazi tyranny over the oppressed peoples of Europe, and security for ourselves in a free world.

>Your task will not be an easy one. Your enemy is well trained, well equipped and battle hardened. He will fight savagely.

>But this is the year 1944 ! Much has happened since the Nazi triumphs of 1940-41. The United Nations have inflicted upon the Germans great defeats, in open battle, man-to-man. Our air offensive has seriously reduced their strength in the air and their capacity to wage war on the ground.

>Our Home Fronts have given us an superiority in weapons and munitions of war, and placed at our disposal great reserves of trained fighting men. The tide has turned! The free men of the world marching together to Victory!

>I have full confidence in your devotion to duty and skill in battle.
We will accept nothing less than full Victory!

>Good Luck! And let us all beseech blessing of Almighty God upon this great and noble undertaking.

>-Dwight D. Eisenhower

EDIT: Clarification