Communication Intelligence Summary, 24
General.-Traffic volume normal. High precedence traffic above normal. Traffic analysis impresses are unchanged from
yesterday's report. The difficulties of
identifications have prevented more definite information of vessels (and fleets to which attached)
that appear to be moving south from
Kure-Sasebo area. If the poor reception prevailing here the last two days can be disregarded and the
assumption made that Radio Heeia intercepted
their "share" of the total traffic, the following impressions are worth something:
(a) The falling off of traffic to China addresses.
(b) The increased activity among third fleet addresses with a high percentage of what appeals to be movement
(c) The above normal activity in the Mandates both ashore and afloat addresses.
The association of Second Fleet, Third Fleet and Southern Expeditionary
Force continues as usual. Palao and
Jaluit appear prominently in dispatch
traffic, the Second Fleet Commander with the former, and the Submarine Force Commander with the latter.
First and Second Fleets.-Very little activity in First Fleet. The radio
call believed to represent the flagship
of Cruiser Division Seven originated a
dispatch to Commander Cruiser Division Seven, CinC. Second Fleet, Commander Southern Expeditionary
Force, and Radio Sama, Takao, Sasebo,
and Tokyo. The CinC. Second Fleet continues to appear as the Task Force Commander of a large number of units
from First and Second Fleet plus
Carrier Division Three and Combined Air Force units.
Third Fleet.-Large number of dispatches involving Third Fleet units, some of which appear to be movement reports.
The fact that CinC Third Fleet appears
as information addressee on many dispatches to and from Second Fleet units indicates that these two
fleets will be closely associated in
any future operations. Yesterday, a large number of dispatches associating Carrier Division Three with Cinc. Third
Fourth Fleet and Mandates.-Fourth Fleet appears to be concentrated in Truk area since all of the recent definite
reports from Fourth Fleet vessels have
come from Truk. Air Squadron Twenty-four and perhaps a large number of submarines from the Submarine
Force are in the Marshall Area.
Submarines.-Comparatively little activity.
Carriers.-No definite indications of location.
Combined Air Force.-Commander Kanoya Air appears in the Takao area.
Otherwise no change.
(FROM: U.S. CONGRESS JOINT COMMITTEE ON PEARL
HARBOR ATTACK HEARINGS; PT. 35, THE
CLAUSEN INVESTIGATION, PP. 62-81. EXHIBIT "A" DAILY COMMUNICATION