When the concerns of the SIS were dispelled in mid-February 1945, Periwig was able to start. The first step was manipulated radio messages to Germany. From 21 February 1945, the first containers with supplies and forged information material for the alleged resistance cells were dropped by plane. The operation was suspended again from mid-March 1945, as the
Supreme Headquarters Allied Expeditionary Force (SHAEF) feared that the
Gestapo could misuse such drops of weapons or material near POW camps to commit the murder of
Allied prisoners. In early to mid-April 1945, a number of trustworthy German prisoners of war were dropped as alleged agents over German territory. There they were to perform various
conspiratorial activities for the claimed resistance cells. The prisoners of war were not aware that these cells did not exist in reality.
Propaganda To support SOE for Periwig, the PWE took over some tasks related to the printing of propaganda material from March 1945. After a new resistance network called "Red Horse" had been invented for the operation, the PWE also distributed printed material with the horse symbol of the fictitious resistance group. The "goal" of this group was the execution of high-ranking Nazi
functionaries. To draw more attention to this goal among the German population, agents were commissioned to place this horse symbol on various buildings or objects while postcards were sent to prominent Germans containing threatening texts, showing the Red Horse symbol. Recipients were asked to commit suicide, with the hidden meaning that this was more honourable than being liquidated by "Red Horse". On 7 March 1945, an article appeared in the German Wehrmacht magazine
Nachrichten für die Truppe (News for the troops) with the headline
Sonderbewachung für bedrohten Gauleiter (Special surveillance for threatened Gauleiters). It announced that three additional armoured vehicles and 24 men of the
NSKK, under the leadership of Major Ludwig Läubl, would be deployed to protect the 37-year-old Gauleiter of
Westphalia South,
Albert Hoffmann. It was necessary, it said, as numerous party members have recently been liquidated in the
Rhine-Ruhr area. It is believed that Gauleiter Hoffmann was one of the next candidates for an assassination attempt. This description was followed by a list of Nazi members who already had been liquidated and ended with the text that now also the mayor of
Bochum, Dr. Piclum, had disappeared without trace. He, too, had received several threatening letters, which only showed the red horse symbol as signature.
Use of carrier pigeons The final action of Periwig consisted of the extraordinary plan to use
carrier pigeons as spy assistants. From 4 April 1945 pigeons were packed in containers attached to
parachutes. These containers were then dropped over enemy territory. A small capsule was fixed to a pigeon leg, which contained a questionnaire, a pencil, and instructions to ensure the safe return of the pigeons to England. The aim was that the pigeons would land in German towns and be found there by cooperative residents who would answer the questions. Afterwards they were to be sent back to England with the information gained, for instance troop strength near the village. Of 330 pigeons used, only nine returned to England and two flew to
France. Five pigeons' capsules contained return messages, of which only one was useful. == Legacy ==