27 November 1941
Circular #2409 (In 4 parts, complete)
Rio de Janeiro to Santiago as Circular #324
(Washington sent to Ottawa, Mexico City, Bogota, Caracas, Havana, Panama, New York, and New Orleans as unnumbered message.)
Handle as Chief of Office routing.
With international relations becoming more strained, the following emergency system of despatches, using INGO DENPO (hidden word, or misleading language telegrams) is placed in effect. Please study this carefully.
Make up a table with the left column containing the code words and the right the corresponding plain (decoded) text. Please see that there is no mistake in transcribing this.
Example. A message meaning:
"Japan and U. S. S. R. military have clashed", will read:
"HIJIKATA and KUBOTA, clerks, have both been ordered to your embassy on 15th (begin spell) S T O P (end spell)."
In order to distinguish these cables from others, the English word S T O P will be added at the end as an indicator. (The Japanese word "OWARI" (end) will not be used).
Code Word Meaning
ARIMURA Code communications prohibited.
ASAI Communications will be by radio broadcasts.
ASAKURA Will communicate by radio broadcast. You
are directed to listen carefully.
ASIKAGA Reception of overseas broadcast impossible
due to interference.
AZUMA Pressure on Japan increasing continually.
EDOGUTI Prepare for evacuation.
HANABUSA Preparations for evacuation have been com-
HANAZONO (?) Prepare to entrust Embassy property to suit-
able foreign envoy (or consul) there.
HATAKEYAMA Relations between Japan and . . . . . (blank)
. . . . . have been severed.
HATTORI Relations between Japan and . . . . .(blank)
. . . . . are not in accordance with expec-
HIZIKATA Japan's and . . . . .(blank's) . . . .
military have clashed.
HOSINO Japan and . . . . .(blank) . . . . . are enter-
ing a full fledged general war.
IBARAGI Communicate to us probable date of breaking
off of relations between Japan and the coun-
try to which you are accredited.
INAGAKI Have you - -?- - the . . . (blank) . . . mat-
ISHIKAWA I have - -?- - the . . . (blank) . . . matter.
KASHIWAGI We are commencing military action ? against
(blank) . . .
KOBAYAKAWA Stop issuing all entrance and transient visas
to Japan, to persons of . . . (blank) . . .
KUBOTA U. S. S. R.
KURIBARA France (?)
MINAMI U. S. A
NAN GO French Indo-China.
NEGI (?) Netherlands East-Indies.
OGAWA Burma (?).
ONIZUKA Union of South Africa (?).
ONODERA Enemy country.
OTANI (?) (Possibly: friendly, or allied country?)
SIMANAKA Day (?)
SAKAEIBARA Tsuki) Month
SIGENOI (KO) Paragraph
SANZYO (Toki) Time
JD-1: 6985 (Y) Navy Trans. 12-2-41 (7)
(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 1 INTERCEPTED DIPLOMATIC MESSAGES SENT BY THE JAPANESE GOVERNMENT BETWEEN JULY l AND DECEMBER 8, 1941)