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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.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

de Gaulle, Charles

Charles de Gaulle (1890–1970) was a French general and statesman. He was the leader of Free France (1940–1944) and the head of the Provisional Government of the French Republic (1944–1946).


The codename of the double-agent Juan Pujol Garcia. Garbo was a Spanish citizen who became both a British and German secret agent. He fed false information to the Germans in the run-up to D-Day to deceive them as part of Operation Fortitude.

Glimmer, Operation

The codename for a deception operation that took place on the night before D-Day. Glimmer simulated an invasion force sailing towards the Pas-de-Calais.


The codename for the British landing beach close to Arromanches. On D-Day the landings on Gold Beach were led by the British 50th Division.

Goodwood, Operation

The codename for a British offensive between 18 and 20 June 1944. The operation aimed to outflank Caen from the east and capture the south bank of the city.


The codename for breakwaters that were formed to create calmer water for ships to shelter and unload in. Some gooseberries were part of a Mulberry harbour.

Gustav the Pigeon

Before modern communication technologies, the armed forces were often reliant on pigeons to deliver important messages. Carrier pigeons performed a crucial role in wartime and during the Second World War in particular. On D-Day a pigeon called Gustav was aboard an Allied ship off the coast of Normandy when the invasion fleet was under radio silence to avoid enemy detection. At the appropriate time Gustav was released and he flew 150 miles across the Channel to RAF Thorney Island near Chichester in West Sussex where he delivered, five hours and 16 minutes later, the very first message that the Normandy landings had commenced.