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D-Day produced thousands of code names, acronyms, abbreviations and many other strange and unusual terms and names!

We have compiled a list of some of the most common terms related to D-Day. If you think something is missing, please let us know.

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The codename for the eastern-most US landing beach. On D-Day the landings on Omaha Beach were led by the US 1st and 29th Infantry Divisions.


Office of Strategic Services. A US intelligence agency that co-ordinated espionage activities behind enemy lines.


German for ‘eastern troops’. The German forces in Normandy in 1944 included a large number of non-German personnel, including men who had been captured fighting for the Soviet Union on the Eastern Front and were subsequently conscripted or volunteered to fight for the Germans.

Overlord, Operation

The codename for the Allied Operation to land in occupied France and liberate Western Europe. D-Day was the initial phase of Operation Overlord.