johnbr

070918-F-1234S-004

Cryptology in World War II German forces depended on Enigma machines to encode and decode secret messages transmitted over the radio during World War II. The Enigma machine is on the left. (Photo courtesy of Helge Fykse, Norway

070918-F-1234S-004
johnbr, May 17, 2011
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    German
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    johnbr
    Date:
    May 17, 2011
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