REii....A61276 AA,) --· UNITED STATES FLEET ... 

HICADQUARTERS 01" THE COMMANDER IN CHlltl" 

NAVY DEPARTMENT 

WASHINGTON 25, D C 

2 October 1945. 

ME1lOHANDYM FOR GENTML lLARSHALL: 

Subject: 

Reference: 

Signal Intelligence (Camnnnication Intelligence). 

(a) My 'l'cp Seeret 

1945. 

(b) Your Top Seczet 

1945. 

(c) Your Tep S•o~e:t 

Septembw 1945. 

11.emorand\lll ot 18 September 

mmorandull ot 18 Augut 

•aorandum at 25 

1. If reference (a) gave the impression that I do not 

desire integration of our signal intelligence acti~ties, 11¥ point 

of view was not made clear. My intention was to inclicate acceptance of your proposal to have ANCm "recoaaend procedure to insure 

complete integration," mentioned in reference (b) as an alternatiTe 

to the suggestion tor physical combination ot Army and Nav acti'Yi.-

ties. 

2. Progress toward etfectiT• coordination and integration during the war has been increasing~ beneficial. It appears 

that we are both in tull accord that this collaboration should be 

extended as tar as practicable. 

3. I note that we agree that the control and diseem5 nation ot Navy and Aru.ry operational •ignal intelligence should be 

exercised by the service concerned. In addition, I belieTe the 

tollowing principles have al.reaey been implmented ar agreed upon: 

(a} Intercept, direction finding, and associated 

communication activities should be conducted by- separate 

Army and Navy units, subject to coordination as at 

present. 

(b) Military and mval traffic should be processed 

by Army and Navy personnel respectively. 

( c) The processing at non-military and non-naTal 

traffic should be jointly undertaken. (The A:rrq beliens 

this should be accanplished by merger, and the Navy by 

ANCIB allocation). 

( d) strategic non-operational signal intelligence 

should be •Tal.uated and disseminated as a joint product. 

( e) There should be full exchange of technical 

information, collateral information, and signal intelligence (Subject to paragraph 4). 

(t} Security standards ot signal intelligence mat 

be jointly maintained. 

(g) Negotiations and coordination with other intelligence agencies should be jointly conducted. 

Declassified and approved for release by NSA on 01-30-2014 pursuantto E.O. 1352a 
Subject: 

S9D:A61276 

·-

UNITED - STATES FLEET 

,.. __ HEADQUARTEftS 01" THIE COMMANDER IN CHllEI" 

N~ Y DEPARTMENT 

\'N\SHINGTON 211 D C 

2 October 1945. 

Signal Irt.elligence (Camnunication Intelligence). 

---------------------------------

I believe that, if' we start on this conmon ground, a plan can be 

worked out to insure complete integration by means short of physical 

merger of all .facilities. 

4. I feel that the Navy's complete and independent 

control of ite production, evaluation, and diaaemination ot naval 

operational intelligence is essential. to naval conund. If a caaplete merger were e.t.f ected, such control might be endangered b7 

the establlehment of a national intelligence agency {or central 

controlling authorit7) which would not. be reaponsible tor Dd.lit&r7 

operations and probably would not be properly cona~ious ot operational 

requirements. A single merged unit would be aore auaceptible to 

abeorption. However, I recognize a real need tor one joint 

center, phyeically located in one building, into 11hich all material 

of co.amon interest shall be ted by the Navy and Ariq cryptanalytic 

processing units. Thia joint unit should al•o colt. &in a joint 

collateral center and a joint evaluation unit. intelligence produced by the evaluation unit should be •d• a'Y&ilabl• 

to st.ate, War an1 Navy, aa appropriate. 

5. It you concur with th••• reactions to reference (c), 

I will direct the raval members of ANCIB to p-oceed accordingQ". 

It appears that much of the aisunderetanding has ariaen traa a con 

rueion or the terme "coni:>ination", "integration", ''oon•olidation", 

"merger", and "joint effort", all of which have been uaed in the 

exchange ot correspondence. Therefore, I have instructed the n&'Yal 

membere ot ANCIB to insure that their understanding of th•" ter1111 

ia identical with that of the ~ mubera. 

s. Navy. 

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