What does D-day mean?

Question

I have always wondered...

Answer 1

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The terms D-Day and H-Hour are used for the day and hour on which a combat attack or operation is to be initiated. They designate day and hour for an operation when the actual day and hour have not yet been determined or announced. The letters are derived from the words for which they stand, "D" for the day of the invasion and "H" for the hour the operation actually begins.

When used in combination with figures and plus or minus signs, these terms indicate the length of time preceding or following a specific action. Thus, H-3 means 3 hours before H-hour, and D+3 means 3 days after D-day. H+75 minutes means H-hour plus 1 hour and 15 minutes.

Planning papers for large-scale operations are made up in detail long before, specific dates are set. Phased orders are planned for execution on D-Day or H-Hour minus or plus a certain number of days, hours, or minutes.

According to the U.S. Army's Center of Military History, the earliest known use of these terms is in Field Order Number 9, First Army, American Expeditionary Forces. It is dated September 7, 1918: "The first Army will attack at H hour on D day with the object of forcing the evacuation of the St. Mihiel Salient."

D-Day for the invasion of Normandy was set for June 5, 1944, but it actually occurred on June 6. Therefore, D-Day, as it applies to Overlord, is June 6, 1944.

Answer 2

The term D Day in military terms is used to specify the day a certain attack or offensive will commence.
The D Day I think you are referring to the is the day Allied forces (British and American Expeditionary troops) launched the major attack to take back the European continent from the Germans during the World War 2 on June 6, 1944.
I will not go into details about the attack, but it involved the largest assembled amphibious assault in history assaulting the heavily fortified coastline of occupied France.
The successful attempt opened up a second land front against the German forces, and although the Russian army played a larger role in the fall of the German army, the victory of over Germany's troops could not have been accomplished without the allied offensive from the West.
The link below should provide you with all the information you need (and a whole lot of information you dont need:D) on the subject.

Answer 3

The initial D in D-day does not stand for anything, it often represents a variable, designating the day upon which some significant event will or has occurred.

D-Day is the unnamed day on which an operation commences or is due to commence. This may be the commencement of hostilities or any other operation. The most famous is D-Day, June 6, 1944, when "Operation Overlord" began. Contrary to popular belief, the "D" does not stand for any specific word-the most popular being disembark

Answer 4

The "D" in D-Day didn't really stand for anything. It was rhyming, it sounded good, it was easy to remember and easy to put in military orders and memos, and easy to send via morse code (when they actually did start sending the code "in the clear" and not encrypted.

It was the day that the Allies actually invaded Europe against the German Wermacht (Army). The Allies had been in Italy prior to this, and in North Africa, but they hadn't actually launched a true final offensive drive against the Germans in Europe until June of 1944. The day they would do so they called D-Day, but like "SOS," it didn't stand for anything by itself. They had some decades earlier decided that the "D" would stand for the day an attack would begin.

Answer 5

its the day the US Canadians and british landed in france during world war two. it is also referred to as the day that an attack will be on.

Answer 6

it depends on what you are saying because there are a lot of things that D-day could mean.

Answer 7

Dooms Day possibly the end of everything as we now know it.

Answer 8

http://en.wikipedia.org/wiki/D_day

Answer 9

destruction day