84 Avenue Foch

84 Avenue Foch
Vierundachtzig Avenue Foch
General information
Address	84 Avenue Foch
Town or city	Paris
Country	France

84 Avenue Foch (German: Vierundachtzig Avenue Foch) was the Parisian headquarters of the Sicherheitsdienst, the counter-intelligence branch of the SS during the German occupation of Paris in World War II.

The Avenue Foch is a wide residential boulevard in the 16th arrondissement that connects the Arc de Triomphe with the Porte Dauphine. During the German occupation of northern France, the buildings at numbers 82 and 86 - either side of 84 - were also commandeered by the German occupation forces.

Number 84 was used for the interrogation of allied SOE agents captured in France. Prisoners were regularly brought to the building from Fresnes prison on the outskirts of the city.

The second floor was used by the SD's wireless unit known as Section IV. It was under the control of Dr. Josef Goetz. The SD used captured allied wireless sets to transmit bogus coded messages in attempts to flush out resistance groups. The operation was colloquially known as the 'radio game'.

The third floor was used by SS Standartenführer Helmut Knochen, who was appointed as senior commander of security in Paris in 1940. In 1942, Knochen's jurisdiction stretched from northern France to Belgium. He was involved in the deportation of French Jews to concentration camps.

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