There were many code names. The Operational code name for the invasion was "Overlord".
D-Day was the day that the Allies invaded Normandy, France.
The first day of Operation Overlord was given the code name D-Day. This was decided months before by COSSAC.
Africa
D-Day was the day that the Allies invaded Normandy, France.
No. It was not.
There were five landing beaches on D-day which were all given code names. Gold, Sword, Juno, Utah and Omaha.
Overlord was that code name.
Overlord was that code name.
The code name for the D-Day operation is Operation Overlord.
D-Day was officially the start of Operation Overlord.
Code-name - Operation Overlord
It was code-named Operation Overlord.