Hugo Kettler

Hugo Wilhelm Kettler (3 January 1895) was a German signals officer with the rank of colonel in the German Army. In October 1943, Kettler became director of the OKW/Chi, the cipher Department of the High Command of the Wehrmacht.[1][2] Kettler remained in command of the unit until it was dissolved on 15 April 1945.[3]

References
  1. David Kahn (5 December 1996). The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet. Simon and Schuster. p. 481. ISBN 978-1-4391-0355-5. Retrieved 20 March 2021.
  2. Rezabek, Randy (3 April 2013). "TICOM and the Search for OKW/ Chi". Cryptologia. 37 (2): 139–153. doi:10.1080/01611194.2012.687430. S2CID 37039981.
  3. Jager, Benedikt (2019). Seehundspeck und Hundeschlitten: Alfred Otto Schwede als Übersetzer des skandinavischen Nordens. Skandinavistik--Sprache, Literatur, Kultur (in German). Vol. 13. LIT Verlag Münster. p. 29. ISBN 978-3-643-91189-6. OCLC 1197629264.
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