COMMUNICATION INTELLIGENCE SUMMARY, 3
General.-Traffic volume slightly under normal although fair for Monday.
Receiving conditions good but all
circuits slow. General messages continue
to emanate from TOKYO communications. Such an amount is unprecedented and the import is not
understood. A mere call change does not
account for activities of this nature. The impression is strong that these messages are periodic reports to the
Major Commander of a certain nature.
Dummy traffic is again being sent in the TOKYO broadcasts. Naval Intelligence TOKYO addressed two WIWI
messages to Chief of Staff Combined Fleet
and to KUMI 8 (unidentified).
Combined Fleet.-Commander in Chief Combined Fleet sent an urgent
message to BUMIL information all Major
Commanders, Combined Fleet, Naval Intelligence
Tokyo, the Chief of Naval General
Staff, and Bureau of Personnel.
Commander in Chief, Combined Fleet also was associated in traffic with offices in the mandates.
principally RNO PALAO. The Commander in
Chief, Combined continues to be associated with the Carriers and Submarines.
Third Fleet.-Third Fleet traffic continues at a high level. A movement report by RATI 66 (unidentified) was
addressed to Commander in Chief Third
fleet for information.
Air.-A WE address today broke down as "ITIKOUKUU KANTAI". The
literal reading of this as "1st
Air Fleet" is correct it indicates an entirely new organization of the Naval Air Forces. There are other points
which indicate that this may be the
case. An old call (YOME7) while never identified
seemed to be in a high position with respect to the Carriers and the Air Corps. Upon movement of air units
to TAIWAN the association of CarDiv 4
and CarDiv 3 with units of the Combined Air Force was apparent. Their association in a command
sense between shore based air and fleet
air had never occurred before but under the concept of an AIR FLEET can easily be accepted. Traffic in the
Air Force continues at a high level.
(FROM: U.S. CONGRESS JOINT COMMITTEE ON PEARL HARBOR
ATTACK HEARINGS; PT. 35, THE CLAUSEN
INVESTIGATION, PP. 62-81. EXHIBIT "A" DAILY COMMUNICATION