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Why Is It Called D-Day?
History Channel ^ | Updated on Jun 5, 2019 | Evan Andrews

Posted on 06/06/2019 10:00:41 AM PDT by Red Badger

The meaning behind the "D" in D-Day has to do with military terminology.

On the morning of June 6, 1944, Allied forces staged an enormous assault on German positions on the beaches of Normandy, France. The invasion is often known by the famous nickname “D-Day,” yet few people know the origin of the term or what, if anything, the “D” stood for. Most argue it was merely a redundancy that also meant “day,” but others have proposed everything from “departure” to “decision” to “doomsday.”

According to the U.S. military, “D-Day” was an Army designation used to indicate the start date for specific field operations. In this case, the “D” in D-Day doesn’t actually stand for anything—it’s merely an alliterative placeholder used to designate a particular day on the calendar.

The military also employed the term “H-Hour” to refer to the time on D-Day when the action would begin. This shorthand helped prevent actual mission dates from falling into enemy hands, but it also proved handy when the start date for an attack was still undecided. Military planners also used a system of pluses and minuses to designate any time or day occurring before or after D-Day or H-Hour.

For example, D+2 meant two days after D-Day, while H-1 referred to one hour before H-Hour. These terms allowed units to effectively coordinate their operations ahead of time even when they didn’t know their actual start date, and they also provided flexibility in the event that the launch day shifted.

Use of these terms stretches back to World War I. One American field order from September 1918 noted, “The First Army will attack at H-Hour on D-Day with the object of forcing the evacuation of the St. Mihiel salient.” Other nations had their own shorthand. In World War I, the French used the code date “le Jour J,” while the British called their operation start days “Z-Day” and “Zero Hour.”


TOPICS: Education; History; Military/Veterans; Society
KEYWORDS: dday; ddaydefinition
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1 posted on 06/06/2019 10:00:41 AM PDT by Red Badger
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To: Red Badger
It was called D-Day because golf day and F-Day were already taken:)

I haven't got a clue or a care.

2 posted on 06/06/2019 10:06:51 AM PDT by USS Alaska (Nuke all mooselimb terrorists, today.)
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To: Red Badger

This is correct but a bit more of the why:

Many times the planning of a military operation takes place without an actual start date. Some events are scoped based on the day that the operation kicks of. However, that day is not known. Think of it like project management.

Suppose there is a project kick off date ... some time in June. Before the project kicks off, I know that X days prior, something needs to be done. So D-DAY minus X is the start date for that effort.

Also consider that the planning for Normandy was started MONTHS before the actual landings.


3 posted on 06/06/2019 10:08:35 AM PDT by taxcontrol
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To: Red Badger

It also meant when the date had to be changed (From June 4th to June 5th for example) you did not have to re-write all of the orders. They just rolled to the next date.


4 posted on 06/06/2019 10:16:01 AM PDT by Vermont Lt (If we get Medicare for all, will we have to show IDs for service?)
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To: Red Badger

“D” in D-Day stands for “Deliverance”, the time when the plans made are put into operation.

No battle plan survives the first contact with the enemy. Perhaps storming the beaches was the only possible successful (if it may be called that) strategy, to expend the lives of thousands and the wounding of even more thousands, before the objective could be gained.

Warfare is the most hideously expensive pastime humanity has ever devised. And it only engages the free will of very few people. Everybody else are just pawns on the chessboard.


5 posted on 06/06/2019 10:17:49 AM PDT by alloysteel (The difference between real life and fiction? Fiction has to make sense and follow some logic.)
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To: Red Badger

Once again google ignores and gives the finger to anything patriotic.....unbelievable


6 posted on 06/06/2019 10:20:31 AM PDT by V_TWIN
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To: alloysteel

Wrong. The “D” does not stand for deliverance.


7 posted on 06/06/2019 10:21:55 AM PDT by damper99
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To: USS Alaska

D-Day and H-Hour. Do you see a pattern here?


8 posted on 06/06/2019 10:27:32 AM PDT by arthurus (Sus---kindof)
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To: Red Badger

Cause it was D day hitler was going down


9 posted on 06/06/2019 10:36:42 AM PDT by al baby (Hi Mom Hi Dad)
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To: al baby

It was De DAY DEY WANTED TO DO IT!...............


10 posted on 06/06/2019 10:37:56 AM PDT by Red Badger (We are headed for a Civil War. It won't be nice like the last one....................)
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To: al baby

IIRC, Hitler had taken a sleeping pill the night before and pretty much slept through the first few hours of the invasion.


11 posted on 06/06/2019 10:38:00 AM PDT by dfwgator (Endut! Hoch Hech!)
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To: Red Badger

It was called D-Day because FDR wanted to call it “Invasion day on June 6th 1944 in Normandy” may have tipped off the Germans.


12 posted on 06/06/2019 10:41:23 AM PDT by Bommer (Help 2ndDivisionVet - https://www.gofundme.com/mvc.php?route=category&term=married-recent-amputec)
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To: Vermont Lt

As it was, in fact. D-Day was set for June 5 but a UK officer in charge of flying weather observation flights out of Tiree correctly predicted the weather pattern on convinced Ike to delay it by one day.


13 posted on 06/06/2019 10:42:06 AM PDT by bigbob (Trust Trump. Trust the Plan.)
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To: Red Badger

Standard Military Acronymn that became famous.


14 posted on 06/06/2019 10:43:18 AM PDT by TADSLOS (You know why you can enjoy a day at the Zoo? Because walls work.)
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To: bigbob

The big news of the day on June 5th, was that Rome was liberated by the Allies. Everybody forgot about that pretty quickly, LOL!


15 posted on 06/06/2019 10:43:30 AM PDT by dfwgator (Endut! Hoch Hech!)
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To: Red Badger

Interesting A Article


16 posted on 06/06/2019 11:12:15 AM PDT by DannyTN
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To: Red Badger

I wonder if they got their F facts right.


17 posted on 06/06/2019 11:13:10 AM PDT by DannyTN
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To: AdmSmith; AnonymousConservative; Arthur Wildfire! March; Berosus; Bockscar; cardinal4; ColdOne; ...
Thanks Red Badger. Everyone has heard of *the* D-Day, Jun 6, 1944, but any large operation involving a large invasion force (amphibious, usually) had a D-Day, D plus ten, whatever. It's analogous to the countdown and countup duriing a rocket launch.

18 posted on 06/06/2019 11:22:33 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: taxcontrol

I assume it’s the same logic NASA uses for its “T minus” countdown clock.


19 posted on 06/06/2019 11:25:50 AM PDT by IronJack
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To: Red Badger

I don’t understand why the US had a European theater, other than because Japan was an attacker was an ally of Germany.

Did we attack to keep Muzzies out of Europe?

Did we attack to prevent European countries from not being able to control their borders?

Did we attack to assure that votes taken in Europe would be something other than ceremonial decorations..?

Did we attack to assure democracy didn’t disappear in Europe..?

The USA fought and won yet EACH ONE of those things have come true during this peace.

I was a little iffy on it 10 years ago, but now I’m not —we didn’t help ourselves by intervening and we didn’t help anyone.

Extrapolating from current trends, how will I feel in 20 years? Will girls be able to go to Euro beaches in bikinis..? Will Denmark have ham? Will France have wine..? What about the UK’s nukes..?

Our men were very brave, yes they were. The problem isn’t with the followers:

Our problem is with our leaders.


20 posted on 06/06/2019 11:31:10 AM PDT by gaijin
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