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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
"T"

Taxable, Operation

The codename for a deception operation that took place on the night before D-Dat. Taxable simulated an invasion force sailing towards the Normandy coast further north from where the actual landings would take place.

Thunderclap, Exercise

The codename for General Sir Bernard Montgomery’s final presentations of his plans for D-Day and Operational Overlord at St Paul’s School in London on 7 April and 15 May 1944.

Tiger, Exercise

The codename for a large exercise held by US forces at Slapton Sands in Devon in April 1944. The exercise was attacked by German E-Boats, causing the death of 749 US servicemen.

Titanic, Operation

The codename for a group of deception operations that took place on the night before D-Day. Titanic consisted of the dropping of dummy paratroopers, metal foil known as ‘chaff’, which confused German radars and dropping special forces. The aim was to confuse the Germans and draw their attention away from the real landing beaches.

Todt Organisation

A civil and military engineering group from 1933 to 1945, named after its founder Fritz Todt. The Todt Organisation built many of the German defences on the Atlantic Wall.

Tonga, Operation

The codename for the British 6th Airborne Division’s landing on the eastern flank of the landing beaches in Normandy.

Torch, Operation

The Allied landings in French North Africa in 1942.

Totalize, Operation

The codename for a British and Canadian offensive on 8 and 9 August 1944. The objective was to break through the German defences south of Caen and advance towards Falaise.

Tractable, Operation

The codename for an offensive carried out by Canadian and Polish troops between 14 and 21 August 1944. The objective was to capture the towns of Falaise, Trun and Chambois and close the Falaise gap.

Transportation Plan

The plan developed by the Allies before D-Day to bomb railway yards in France in order to prevent the Germans from being able to send reinforcements to Normandy.