In the aftermath, a daily radio show, independent of Free France was launched on 14 July, the date of Bastille Day called "Ici la France", then from 6 September 1940, "Les Français parlent aux Français".

This is undoubtedly the dominant tone of your letters and what constitutes the raison d'être of this program is the proud complaint of a chained people, it is the anger of the prisoner who shakes the bars.

But behind these phrases were hidden an important significance, such as: The idea of using personal messages to transmit coded messages came from Georges Bégué, French Officer in the British Secret Service Action SOE, the first agent of this service to parachute into France in May 1941.

In Morse code, the first four notes of the work (three short and one long) represent the letter "V" for victory.

To activate the resistance just before the Normandy landings, numerous coded messages were broadcast by Radio Londres : A famous example often cited was the first strophe of the poem Chanson d'automne by Verlaine which was used for the rail plan of Operation VENTRILOQUIST by Philippe de Vomécourt in Sologne (the mission was to sabotage the rails across Normandy, making them unusable for German reinforcements), under a slightly altered form[10][11] Pierre Dac attacked both Adolf Hitler and Joseph Goebbels in the journal L'Os à moelle, and began to listen to French programming on the BBC from 1937.

He then prepared new texts by listening to the German controlled radio and mocking their poor strategies and the enemy's defeats.

[20] A few weeks later, was the Siege of Leningrad and Radio Paris clumsily tried to hide the scale of the German defeat.

Pierre Dac responded : But now the encirclement of the divisions of the Wehrmacht by the Red Army can be called concentric pressure.

[21] On 10 May 1944, a comic dialogue took place between the stations, Philippe Henriot broadcasting on Radio Paris and referring to Pierre Dac as a Jew who fled France without an interest in its fate.