During World War II, the D-Day invasion (Operation Overlord) was a pivotal moment in the Allied campaign to liberate Europe from Nazi occupation. To ensure the success of the operation, it was crucial that the Resistance in France was informed of the invasion without alerting the German forces. One key element of this communication was a secret message that signaled the invasion was imminent.
The message, known as the “June 5th” or “D-Day warning,” was part of a larger covert communication strategy employed by the Allies to alert the French Resistance about the invasion. It was transmitted through various channels, including radio broadcasts and coded messages. One of the most famous signals was a message sent via the BBC, which used a pre-arranged code to alert the Resistance without tipping off the Germans.
The secret message was a simple but significant code phrase: "The time has come." It was broadcast on June 5, 1944, the night before the invasion. This phrase, though seemingly innocuous, was understood by the Resistance as a direct signal that the invasion of Normandy was about to begin. The French Resistance had been meticulously briefed in advance, so they knew that upon hearing this message, they were to prepare for action, such as disrupting German communications, sabotaging infrastructure, and gathering intelligence to support the Allied forces.
The communication was a crucial element in the success of D-Day. By using the coded message, the Allies ensured that the Resistance could effectively assist the invasion, complicating German defenses and providing vital support during the initial assault on the beaches of Normandy. The careful planning and secretive communication between the Allies and the French Resistance played a critical role in the success of the operation, which marked a turning point in the war.