The codeword "Odessa" – as used by the Allies – appeared for the first time in a memo dated July 3, 1946, by the American Counterintelligence Corps (CIC) whose principal role was to screen displaced persons for possible suspects. The CIC discovered that the word "ODESSA" was used at the KZ Bensheim-Auerbach internment camp for SS prisoners who used this watchword in their secret attempts to gain special privileges from the Red Cross, wrote historian Guy Walters. Neither the Americans nor the British were able to verify the claims extending any further than that.[1]