D-Day was the massive Allied invasion of Nazi-occupied Normandy that began on June 6, 1944, opening a long-awaited western front in France. As the opening assault of Operation Overlord, approximately 156,000 American, British, Canadian, and other Allied troops reached Normandy by sea and air. The seaborne forces landed across five beaches codenamed Utah, Omaha, Gold, Juno, and Sword.
The victory came at a terrible cost. Allied forces suffered more than 10,000 casualties on June 6, including roughly 4,400 confirmed deaths, while German losses are estimated at between 4,000 and 9,000 killed, wounded, missing, or captured. Behind those numbers were remarkable stories of courage, deception, improvisation, and survival, and these 50 facts reveal how one extraordinary day helped change the course of World War II.
1 Maureen Flavin’s Barometer Delayed D-Day
Three days before D-Day, a 21-year-old Irish woman named Maureen Flavin took an hourly barometer reading while working overnight at the post office in Blacksod in Ireland. At 1:00 a.m., she reported the rapidly falling air pressure to Dublin, unaware that her reading would reach Allied headquarters and General Dwight D. Eisenhower’s meteorologists. After officials asked the station to check and repeat the report, Flavin confirmed that a major Atlantic storm was approaching. The warning helped persuade Eisenhower to delay Operation Overlord by 24 hours, preventing the Allies from launching in dangerous conditions before a brief improvement allowed the invasion to proceed on June 6, 1944.
2. The fighting on D-Day was so intense that microscopic pieces of shrapnel remain mixed into the sand at Omaha Beach. In 1988, geologists collected a single sand sample near the war memorial, and later analysis indicated that shrapnel made up 4% of that particular sample.
3. On D-Day, 21-year-old Canadian-born British soldier Bill Millin walked across Sword Beach playing his bagpipes while enemy fire killed men around him. British Army regulations restricted pipers to rear areas, but Lord Lovat, commander of the 1st Special Service Brigade, ignored the rule and ordered his personal piper to play during the landing. Armed only with his pipes and a small knife, Millin played several Highland tunes as the commandos advanced toward Pegasus Bridge. Millin later said that captured German snipers told him they had not shot him because they believed he had gone mad.
4. Despite a heart condition and arthritis that forced him to use a cane, 56-year-old Brigadier General Theodore Roosevelt Jr. landed with the first assault wave at Utah Beach on D-Day. His commander had rejected two verbal requests to join the landing, but Roosevelt gained approval with a written petition arguing that his presence would steady the men he knew personally. Roosevelt was the oldest man and only general in the first wave to storm the Normandy beaches, and he was among the first soldiers out of his landing craft. When the force came ashore a mile off target, he calmly reorganized the attack and used humor and poetry to steady his men; he survived D-Day and later received the Medal of Honor posthumously for his leadership.
5. On D-Day, a Black U.S. Army medic named Waverly Woodson Jr. treated at least 200 wounded men on Omaha Beach despite being badly injured himself. A German shell destroyed his landing craft as it approached shore, killing the soldier beside him and embedding shrapnel throughout Woodson’s body. Although he initially believed he was dying, he established an aid station and worked for 30 hours, removing bullets, administering blood plasma, resetting broken bones, and even amputating a foot. Woodson finally collapsed from his injuries and was evacuated to a hospital ship, but he returned to Omaha Beach within days.
6 USS Texas Deliberately Flooded Herself
Nine days after D-Day, the crew of USS Texas intentionally flooded part of the battleship so it could continue providing fire support to Allied troops advancing inland. By June 15, 1944, the troops had reached the edge of the ship’s normal gun range, leaving its final target too far inland for its guns to reach. The crew flooded the starboard torpedo blister, causing the battleship to list by two degrees and giving its guns enough additional elevation. This improvised tilt allowed it to complete its final fire-support mission before the fighting moved beyond the reach of its guns the following day.
7. Before D-Day, British Lieutenant Colonel Terence Otway reportedly devised an unusual test to ensure his men would not leak their secret D-day plans. He selected 30 of the most attractive members of the Women’s Auxiliary Air Force, asked them to wear civilian clothes, and sent them into local pubs frequented by his soldiers. The women tried everything they could to coax details of the mission from the men without revealing the test. Not one soldier disclosed the plans, satisfying Otway that his 9th Parachute Battalion could be trusted with their operation.
8. In the 35 days before D-Day, five top-secret Allied codewords appeared as answers across several Daily Telegraph crosswords. Utah and Omaha were named landing beaches, Overlord referred to the full invasion, Mulberry to the artificial harbors, and Neptune to the naval assault. Their appearance so close to June 6 alarmed MI5, which suspected someone might be using the puzzles to leak invasion plans and interrogated compiler Leonard Dawe. Investigators cleared him of espionage and initially treated the episode as a remarkable coincidence, although a former pupil later claimed he had overheard soldiers using the codewords and suggested them to Dawe.
9. During the early airborne landings on D-Day, American paratrooper John Steele’s parachute snagged on a pinnacle of the church tower in Sainte-Mère-Église, leaving him dangling above a square filled with German troops. Wounded in the foot by flak, he hung motionless for two hours and pretended to be dead while fighting continued below. German soldiers eventually took him prisoner, but he escaped four hours later and rejoined his division as American forces attacked the village. Steele received the Bronze Star for valor and the Purple Heart for his combat wound.
10. Before playing Scotty on Star Trek, Canadian actor James Doohan survived being shot six times by friendly fire on D-Day. After landing at Juno Beach and leading his men inland, he was returning to his command post around 11:30 p.m. when a nervous Canadian sentry mistook him for the enemy and fired a Bren gun. Four bullets struck his leg, another hit a silver cigarette case over his chest, and the sixth passed through his right middle finger, which doctors later amputated. Doohan usually concealed the missing finger during his acting career, sometimes wearing a flesh-colored glove fitted with a false finger.
11 Allies Briefed De Gaulle Belatedly
Free French leader Charles de Gaulle did not learn the details of the D-Day invasion until June 4, 1944, only two days before the landings. U.S. President Franklin D. Roosevelt had instructed British Prime Minister Winston Churchill to withhold the plans because he did not trust de Gaulle to keep them secret. Allied officials also considered Free French codes insecure, while de Gaulle’s organization refused to use British or American systems. Churchill summoned de Gaulle from Algiers on June 2, and he arrived in Britain two days later as Operation Overlord was about to begin.
12. British Prime Minister Winston Churchill wanted to cross the English Channel with the main invasion force on D-Day. He continued pressing the idea until King George VI announced that if Churchill went, he would go too. The King’s declaration forced Churchill to reconsider, and he eventually conceded that the plan was neither practical nor sensible. Six days after the landings, Churchill crossed aboard HMS Kelvin, inspected the Normandy beaches, and lunched with General Bernard Montgomery only three miles from the front.
13. Britain supplied most of the naval and air power used during D-Day. Of the 1,213 warships involved, 892 were British and 200 were American, while Britain provided 3,261 of the 4,126 landing craft compared with 805 from the United States. British aircraft also made up about two-thirds of the 12,000 planes supporting the invasion, and 31 percent of the supplies used by American forces came directly from Britain. These contributions challenge the popular image of D-Day as a predominantly American operation.
14. American war correspondent Martha Gellhorn, who was also Ernest Hemingway’s third wife, was the only female reporter to land in Normandy on D-Day. After officials refused her accreditation, she boarded a hospital ship and hid in a toilet until it sailed across the English Channel. Gellhorn then went ashore with the medics, helped bring wounded soldiers back from the beaches, and reported what she saw and heard.
15. When Allied forces landed in Normandy on D-Day, Adolf Hitler was asleep, and his staff had strict orders not to wake him. His staff did not dare wake him up because he had been up until 3am chatting with friends at his residence. German commanders could not move several armored formations from the interior without his personal approval, so the opening hours passed without those reserves being released. Hitler awoke between 11 a.m. and noon but still delayed sending reinforcements because he believed Normandy was a diversion from an attack at Calais. He released some Panzer divisions only after commanders in Normandy repeatedly pressed him to act.
16 Pujol’s Phantom Agents Fooled Hitler
Spanish double agent Juan Pujol Garcia helped save tens of thousands of Allied lives during D-Day by convincing Germany that the Normandy landings were a diversion. Working with British intelligence under the code name Garbo, he used a network of 27 imaginary agents to claim that the main invasion would strike the Pas-de-Calais. His reports persuaded Hitler to keep powerful German divisions near Calais even after the Normandy assault had begun. Germany awarded Pujol the Iron Cross, while Britain appointed him a Member of the Order of the British Empire, making him the first and reportedly only person decorated by both sides during World War II.
17. General Dwight D. Eisenhower prepared a brief alternate message in case the D-Day invasion failed, accepting full responsibility for ordering the attack. He wrote that the decision to attack at that time and place was his, while the troops, air forces, and navy had done everything bravery and devotion to duty allowed.
18. A Canadian M4 Sherman tank nicknamed Bomb fought continuously from its D-Day landing until Germany surrendered. It arrived at Juno Beach on June 6, 1944, with the Sherbrooke Fusilier Regiment and participated in every major operation fought by the unit over the next 11 months. Bomb fired 6,000 rounds, destroyed five enemy tanks, survived two direct shell hits and an anti-tank rocket, and never missed a day of action while fighting across France, Belgium, the Netherlands, and Germany. The surviving tank is now preserved in Sherbrooke, Quebec.
19. During D-Day, the Allies dropped approximately 500 dummy paratroopers known as Ruperts away from the genuine airborne landing zones. The small cloth figures resembled full-sized parachutists from a distance, while attached noisemakers and explosives simulated rifle fire and soldiers burning their parachutes after landing. The deception convinced some German defenders that additional airborne assaults were underway and diverted attention while real paratroopers landed near Caen and on the Cotentin Peninsula toward Cherbourg.
20. Canadian troops brought more than 1,000 folding bicycles ashore at Juno Beach on D-Day so infantrymen could travel inland faster and more quietly than on foot. Although the Birmingham Small Arms Company designed its Airborne Folding Bicycle for paratroopers, the military also issued it to infantry and service units. Two wing nuts allowed soldiers to fold the frame in half for easier transport and discard the bicycle when it was no longer useful. French civilians later recovered many abandoned bikes and used them during wartime and postwar fuel shortages.
15 Most Controversial & Costly Blunders in History
21 Exercise Tiger Killed 749 Americans
Exercise Tiger, a full-scale rehearsal for the Utah Beach landings, became one of the deadliest disasters in the preparation for D-Day. During a live-fire practice at Slapton Sands in England, a delayed landing schedule failed to reach some craft, causing an unknown number of friendly-fire casualties. The following night, nine German E-boats surprised eight American LSTs in Lyme Bay, sinking two and killing 749 servicemen. Ten missing officers held BIGOT clearance and knew the invasion plans, raising fears that D-Day might be called off until all ten bodies were recovered.
22. In the weeks leading up to D-Day, General Dwight D. Eisenhower was reportedly smoking as many as six packs of cigarettes and drinking up to 24 cups of coffee a day under enormous pressure. He also rarely managed more than two hours of uninterrupted sleep per night as he prepared to make the final decision to launch the Normandy invasion.
23. After General George S. Patton was sidelined for slapping two hospitalized soldiers in Sicily, the Allies placed him at the head of the supposedly powerful First U.S. Army Group in England. FUSAG was actually a phantom formation designed to convince Germany that Patton would lead the main invasion at Calais and that the Normandy landings were merely a diversion. Double agents, false radio traffic, dummy equipment, and Patton’s formidable reputation sustained the deception, helping keep major German forces near Calais after D-Day.
24. Only about 14 percent of the manpower in the Allied armies fighting the Normandy campaign served as infantry, while another 6 percent crewed tanks. About 45 percent performed logistical, medical, administrative, and other rear-area functions. Much of the rest served in artillery and other combat-support arms, with gunners alone comprising 18 percent of the British force in Normandy.
25. D-Day was originally scheduled for June 5, 1944, but meteorologist James Stagg persuaded Dwight D. Eisenhower to postpone the invasion by one day shortly before it was due to begin. The landings required calm seas, low tides, moderate winds, and a date close to a full moon. Using reports from weather stations across Britain and the Atlantic, along with German U-boat data decoded at Bletchley Park, Stagg’s team predicted a brief improvement on June 6. The troops still faced strong winds and choppy seas, but the narrow weather window allowed the invasion to proceed.
RE: Fact #10 (James Doohan Survived Six Bullets) – He actually retired to my hometown, Redmond, WA. I saw him in a parking lot once, and he was driving a conversion van with a bumper sticker that read: ‘STARFLEET ACADEMY – GRADUATE’.
RE: Fact #15 (Hitler’s Sleep Delayed Panzer Reinforcements) – Just imagine how differently things would have played out if he had actually been competent.
I mean, how about starting with not committing genocide and actually trying to develop nuclear weapons first?
RE: Fact #37 (Joe Ekins Destroyed Three Tigers) – Joe Ekins was a crack shot, even though he’d only fired that 17-pounder a handful of times in his life. He was terrified, but he just thought, “Get the bastard before he gets you.” After he fired, there was a blindng flash, and it took a moment for the smoke to clear. Then, the Tiger went up in flames, the ammo cooked off and launched the turret. In under 15 minutes, he’d taken out three Tigers with only five shots.
RE: Fact #17 (Eisenhower’s Failure Note Accepted Blame) – I can’t imagine having to commit to an operation like D-Day without knowing for sure that it would work. The pressure must have been unbearable.
RE: Fact #42 (Filthy Thirteen Inspired Dirty Dozen) – There is something both necessary and awful about being a maverick in the military. You just hope the right person is in charge of those decisions when it counts.
RE: Fact #11 (Allies Briefed De Gaulle Belatedly) – It reminds me of the time in 1966 when Charles de Gaulle pulled France out of NATO and told the US to leave. President Lyndon Johnson reportedly had his Secretary of State ask de Gaulle if that included the 60, 000 American soldiers buried in France from the world wars. The story goes that de Gaulle was so embarrassed he just got up and left.
Since we’re talking about LBJ, I have to mention the time he used an amphibious car on his Texas ranch. He’d take guests for a drive and then ‘accidentally’ steer into the lake while pretending to panic, just to watch them freak out. Total madman.
I don’t know much about LBJ, but I’m definitely curious to hear more. That was a brutal verbal takedown.
If you look into him, he’s one of the most interesting presidents. He came from absolutely nothing in rural Texas, yet he passed the Civil Rights Act, which changed the country for the better for millions of people. He definitely had his flaws, but he was a fascinating guy.
That’s not quite right. De Gaulle didn’t pull France out of NATO entirely; he just withdrew the country from the unified command structure. France didn’t drop its treaty obligations, but he was making a point that French troops should be led by French officers, not American ones. They were still fully expected to fight alongside NATO if it came to that.
“Committed, ” lol. France was threatening to walk away from NATO basically every chance they got throughout the Cold War.
RE: Fact #29 (Omaha’s Amphibious Tanks Sank Offshore) – The way this is written makes the tanks sound like a failure, but they worked fine at the other four beaches where they were launched much closer to the shore. The real mistake was launching them three miles out at Omaha.
RE: Fact #6 (USS Texas Deliberately Flooded Herself) – The way the Allied ships moved in dangerously close to Omaha Beach, practically grounding themselves just to provide cover fire for the infantry, is absolutely wild.
RE: Fact #40 (Operation Bodyguard Kept Calais Defended) – The deception plan was codenamed Operation Fortitude. It also involved using General Patton as a decoy because the Wehrmacht held him in such high regard.
RE: Fact #38 (Salinger’s Caulfield Pages Crossed Normandy) – So he had all those intense, real-world experiences, and he used them to write a book where basically nothing happens?
RE: Fact #32 (Fourth Army Was Entirely Fictional) – Every side was doing this kind of deception, but the British were definitely the best at it. They even hired magicians and stage performers to use their skills to pull the wool over the Germans’ eyes.
RE: Fact #23 (Patton’s Phantom Army Threatened Calais) – It wasn’t just about punishment. Patton was someone the Germans genuinely feared and respected. They were convinced he’d lead the main invasion, so putting him in command of the decoy force just confirmed their suspicions about where the attack would happen.
Exactly. They picked him for his profile because nobody would believe he was actually in charge of a fake army. I remember reading a book where he supposedly said something like, ‘They want me to run around making noise and showing off, and that’s exactly what I’m best at.’
RE: Fact #50 (D-Day’s D Simply Meant Day) – It’s interesting because the operation most people think of as D-Day actually had a cool name. “Operation Overlord” covers the entire Battle of Normandy, while the actual landing was “Operation Neptune.” I wonder if we just call it D-Day because it involved two different operations and it became confusing to name just one.
RE: Fact #48 (Canadian Juno Troops Volunteered Overseas) – I know our contributions often get overshadowed by the work of the big three, but for Canadians, this is a huge part of our national identity and heritage.
RE: Fact #49 (Leo Major Captured Ninety-Three Germans) – It is worth mentioning that he isn’t better known or celebrated partly because he was a vocal separatist. Separatists weren’t popular in the rest of Canada back then, and they still aren’t, though for different reasons now. I’ve heard that some movie studios wanted to make a film about him but insisted he be portrayed as an American.
RE: Fact #40 (Operation Bodyguard Kept Calais Defended) – Seven weeks seems like a stretch. There were hundreds of thousands of troops and thousands of tanks and aircraft involved in the fight by then. It’s hard to imagine Hitler believed that force was just a decoy.
RE: Fact #8 (Daily Telegraph Crosswords Alarmed MI5) – The logic was hilarious: ‘We were shocked they thought Dawe was a spy. He was a member of the golf club!’ Yeah, definitely not a traitor if he plays golf.
RE: Fact #19 (Rupert Dummies Diverted German Defenders) – There’s a scene in “The Longest Day” where the British show how they worked. They even rigged them with gunpowder charges so that if a German soldier walked up to one, it would pop off when it hit the ground to make them think they were being fired on. British ingenuity in that war is really underrated.
RE: Fact #14 (Martha Gellhorn Became D-Day Stowaway) – Gellhorn hated being defined by her marriage to Hemingway, and she famously demanded that his name not be mentioned in interviews. She once said, ‘I’ve been a writer for over 40 years. I was a writer before I met him and I was a writer after I left him. Why should I be merely a footnote in his life?’
RE: Fact #21 (Exercise Tiger Killed 749 Americans) – This disaster was mentioned in “Band of Brothers, ” where it noted that authorities suppressed the information for obvious reasons at the time.
RE: Fact #39 (German Fire Shattered Able Company) – It was brutal. The Allies basically had to get men onto the sand faster than the German machine guns could cut them down. It’s pretty amazing that Normandy was a success at all when you think about it.
RE: Fact #5 (Woodson’s Aid Station Treated Hundreds) – Considering someone like Edward A. Carter Jr. didn’t get his Medal of Honor until the 90s, I would say yes, he was absolutely deprived of it. The US was so racist back then that Black veterans were treated poorly and often denied GI Bill benefits that helped build the middle class.
RE: Fact #3 (Bill Millin’s Bagpipes Defied Gunfire) – The account says he was armed only with his pipes and a black knife kept in his kilt, and per tradition, he wasn’t wearing any underwear. He mentioned later that the freezing water really took his breath away. The man went into combat against the Nazis with a tiny boot knife and a musical instrument while people were dying all around him.
RE: Fact #41 (Rangers Climbed Pointe du Hoc) – That’s wild. The allies actually attached fuses to the grappling hooks and lit them before firing them up the cliff. Since the Germans saw the burning fuses, they assumed they were explosives and stayed away from them.
RE: Fact #15 (Hitler’s Sleep Delayed Panzer Reinforcements) – It’s wild that they kept him drugged up to make him sleep. He was taking uppers like amphetamines and cocaine to stay alert during the day, so he couldn’t sleep at night, which forced them to give him downers like opiates and benzos. It’s a miracle his heart didn’t just give out.
RE: Fact #21 (Exercise Tiger Killed 749 Americans) – I think this stayed secret until a diver found a submerged Sherman off Slapton Sands and started digging into it. The government was able to keep it under wraps for so long because they’d evacuated all the civilians from the area to keep the landing exercises secret.