History of D-Day: 76 Years Ago

Bill Petro
7 min readJun 6, 2020


Normandy Beach, June 6, 1944

Why has D-Day captured the imagination of American consciousness for three-quarters of a century? On Twitter, the hashtag is #DDay76

Seventy-six years ago, on June 6, 1944, the Allies launched an offensive on the Normandy coast of France to liberate continental Europe from the Nazi German occupation. D-Day was the largest invasion by sea in all of history, literally turning the tide. It was the beginning of the end of the War. General Eisenhower, Supreme Commander of Allied Forces, sent the troops out that day:

“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. I have full confidence in your courage, devotion to duty, and skill in battle.”


Within two months, the 77-day Normandy campaign led to the liberation of France and, in less than a year, to the defeat of the Nazi forces and the end of World War II in Europe. Between these two events, my father visited Paris while his US Army division was moving through France toward the Battle of the Bulge, and the liberation of the Dachau concentration camp in Germany.

D-Day Landing

This amphibious invasion described as a “never surpassed masterpiece of planning” was called Operation Neptune, part of the larger Operation Overlord, the continental lodgment that began with these Normandy landings. The landing by sea was preceded by the landing of 24,000 troops by air including British, US, and Canadian airborne troops shortly after midnight.

All in all, over 5,000 landing vessels and almost 160,000 Allied troops landed along a 50-mile stretch of French coastline to fight Nazi Germany on the beaches of Normandy. The attack was targeted in five different beach sections: codenamed:

  • Utah & Omaha (US)
  • Sword & Gold (British)
  • Juno (Canadian)

Ahead of the landing, Eisenhower told the troops:

“Your task will not be an easy one. Your enemy is well trained, well equipped and battle-hardened. He will fight savagely… I have full confidence in your courage, devotion to duty and skill in battle. We will accept nothing less than full Victory! Good Luck! And let us all beseech the blessing of Almighty God upon this great and noble undertaking.”

Omaha was renowned for the heavy casualties American troops suffered — over 2,000 — as a result of the tall cliffs with heavy German defense, limited Allied naval gun bombardment, and the low cloud cover that made aerial bombing difficult and ultimately too late to eliminate German beach defenses. While the Germans lost 1,000 men during the D-Day invasion, Allied casualties were much higher, with 12,000 including over a third confirmed dead.


Adolf Hitler had anticipated a western invasion by sea and directed his German forces to construct fortifications along the Atlantic coast from Norway down to Spain. Pas de Calais was the most expected landing point, being the shortest distance by sea from England, and was defended heavily. German Field Marshall Rommel thought that the Normandy coastline might be an attack point and constructed a number of concrete “pillbox” gun emplacements along the Atlantic coast there. He involved other obstacles including metal tripods, embedded wooden stakes as well as anti-tank emplacements on the beach to slow down any amphibious assault craft and delay tank movement on the beach.

D-Day has been commemorated in books, films, and television.

D-Day Books

Some of the best-known books include two by American author Stephen Ambrose’s D-Day June 6, 1944: The Climactic Battle of World War II and his Band of Brothers.

The fifth volume of Winston Churchill‘s six-volume memoir “The Second World War” covers the climax of the War from the British perspective. Churchill’s sixth and final volume Triumph and Tragedy concludes the history with the Normandy invasion to the surrender of the Japanese ending WWII in the Pacific.

D-Day Movies

I remember as a boy watching with my father The Longest Day as he pointed out errors the filmmakers had made. And there were a number of historical and technical inaccuracies, but this was during the Cold War when historical accuracy seemed less important than regaining American confidence by recalling the memory of a “just war,” won with the assistance of our allies. It was the first movie made about the Normandy invasion, filmed in 1962 and stared a host of international stars including Richard Burton, John Wayne, Henry Fonda, Robert Mitchum, and (a pre-James Bond) Sean Connery.

Half a century later, the best film of the current generation is the 1998 Spielberg/Hanks-produced drama Saving Private Ryan. The film depicts the landing at the Normandy beach as violent, frightening, and intense — too upsetting for some viewers.

Many years ago, while I was a student at Berkeley, I met on campus James Doohan, who played Scotty on Star Trek. He wrote a letter to Stephen Spielberg after seeing the film. He shared with Spielberg that he was an officer with the 3rd Canadian Infantry Division who landed on Juno Beach, after which he was hit six times by machine-gun fire and lost the middle finger of his right hand. He wanted to publicly thank him and say that the depiction of the film was completely accurate and commended him for not leaving out any gory details.

D-Day Television

The best television I’ve ever seen was the HBO miniseries based on Stephen Ambrose’s book Band of Brothers. Ambrose took his title from Shakespeare’s famous St. Crispin’s Day Speech in Henry V Act IV, Scene 3 where King Henry of England says just before the Battle of Agincourt:

But we in it shall be remembered-
We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother

The miniseries describes the movement of the 101st Airborne Division, E Company through their jump training, initial landing at Normandy and their exploits across Europe where they intersected with my father’s 42nd “Rainbow” Division, E Company at Dachau in Episode 9 “Why We Fight.” This episode was introduced on HBO’s original website with my father’s story.

I recounted my father’s story here. His involvement in the liberation of the main Dachau camp — the first and longest-running concentration camp, the prototype, the training center for SS officers destined to work at other concentration camps — took place just nine days before the end of the War. I wrote about it at this site, which describes the liberation in greater detail.

I was in Paris several years ago during the weeks-long 70th commemoration of this battle that ultimately led to the restoration of the French Republic. We have the French to thank for their help over 230 years ago in our own War of Independence — for their money, their troops, and their navy. We had never seen in one day a naval invasion of the scale of D-Day. I hope we never shall again.


Saving Private Ryan begins and ends with Ryan’s visit to the Normandy American Cemetery at Colleville-Sur-Mer, France. As he kneels at the cross of Captain Miller (Tom Hanks) he wonders aloud if he has lived a life sufficiently worthy and earned the sacrifice of the lives of six of Miller’s squad to return him safely home. This is, to be sure, not the right question, it’s not the response to the blood spilled on his behalf. Instead, the proper response is to be grateful… the gratitude that viewers of the film are encouraged to have, echoing the letter recited by General Marshall to Ryan’s mother at the end of the movie:

I pray that our Heavenly Father may assuage the anguish of your bereavement, and leave you only the cherished memory of the loved and lost, and the solemn pride that must be yours to have laid so costly a sacrifice upon the altar of Freedom.

Yours, very sincerely and respectfully,
-Abraham Lincoln.

Bill Petro, your friendly neighborhood historian

If you enjoyed this article, please consider leaving a comment or subscribing to the news feed to have future articles delivered to your feed reader or your email.



Bill Petro

Writer, technologist, historian. Former Silicon Valley tech exec. Author of fascinating articles on history, tech, pop culture, & travel. https://billpetro.com