"Radio interception." . . "2. Verdenskrig 1939-1945" . . "History." . . "World War, 1939-1945 Radio." . . "Countermeasures." . . "World War, 1939-1945 Secret service Germany." . . "Germany(East and West)" . . "Counterintelligence." . . "Europe." . . "1914 - 1945" . . "Efterretningstjeneste" . . "Radio interception History." . . "ARMY TRAINING AND DOCTRINE COMMAND FORT MONROE VA." . . "Conventional warfare." . . "Radio Social and economic aspects." . . "Spionage" . . "Tyskland" . . "Radio Communications." . . "Telecommunications." . . "Radiokommunikation" . . . . "Ciphers." . . "1939 - 1945" . . "Cryptography." . . "United States. Navy Security Group Command." . . . "War secrets in the eIther"@en . . . . . . . . "War Secrets in the ether 2 vols"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "War secrets in the Ether" . . . . . . . . . . . . "War secrets in the ether : the use of signals intelligence by the German military in WWII"@en . . . . . . . . . . . . . . . . . . "Kriegsgeheimnisse im Äther" . . . "War secrets in the ether" . "War secrets in the ether"@en . "War Secrets in the Ether, the Use of Signals Intelligence by the German Military in WWII"@en . "History"@en . "History" . . . . . . . . . . . . "This is a history of the intercept service in Europe from 1908-1945, as told by Flicke who spent 26 years in the German intelligence service. He gives a personal account of his experiences as an espionage radio agent. The development of the intercept service is discussed with an emphasis on German methodology. The author states that radio espionage played a decisive role during World War II. Long before the armistice it was apparent to these German agents that the National Socialist cause was lost because the results of the intercept service revealed how strong the enemy was in all fields. The author poses the question, Why did they not stop the war when they knew it could not be won?"@en . . . . . . . . . . . "\"The story of German 'code-breaking' successes and radio-espionage during and between the world wars\"--Cover."@en . "Use of signals intelligence by the German military in WWII"@en . "Military intelligence." . . "Military Intelligence." . "Espionage." . . "Signaltjeneste" . . "Radioopklaring" . . "Espionage History." . . "Besatte lande" . .