David P. Mowry
Published: 2012-08
Total Pages: 104
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This publication joins two cryptologic history monographs that were published separately in 1989. In part I, the author identifies and presents a thorough account of German intelligence organizations engaged in clandestine work in South America as well as a detailed report of the U.S. response to the perceived threat. Part II deals with the cryptographic systems used by the varioius German intelligence organizations engaged in clandestine activities.