[Secret]
 
From: Tokyo
To: Washington
19 November 1941
(J 19)
Circular #2354
 

When our diplomatic relations are becoming dangerous, we will add the following at the beginning and end of our general intelligence broadcasts:

 

(1) If it is Japan-U. S. relations, "HIGASHI".

(2) Japan-Russia relations, "KITA".

(3) Japan-British relations, (including Thai, Malaya and N. E. I.); "NISHI".

 

The above will be repeated five times and included at beginning and end.

 

Relay to Rio de Janeiro, Buenos Aires, Mexico City, San Francisco.

 
25392
JD-1: 6850                                  (Y) Navy Trans. 11-26-41 (S)
 

(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 1 INTERCEPTED DIPLOMATIC MESSAGES SENT BY THE JAPANESE GOVERNMENT BETWEEN JULY l AND DECEMBER 8, 1941)