SIGNATURE RECORD AND COVER SHEET

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP83-00764R000600100040-2
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 3
• Document Creation Date: December 9, 2016
• Document Release Date: July 23, 1998
• Sequence Number: 40
• Publication Date: February 10, 1951
• Content Type: FORM

25X5A
Approved For Release 2000/09/14: CIA-RDP83-00764R000600100040-2
Approved For Release 2000/09/14: CIA-RDP83-00764R000600100040-2
:Approved For Releastep00/0910M3-00764R40604101#2
12 January 1951
mimappun FOR: STAFF CHIEFS A, Cs D? E
FOREIGN DIVISION CIIESFS Mt P? Rs S, T, Ws, Z
CHL3FS ICS, TRD, DLC
SUBJECT: Draft of Basic Assumptions
1. The ADSO has directed Staff B to prepare for his consideration
a statement of Basic Assumptions, with reference to which OSO shall
conduct its planning and operational activities. Attached are tentative
Basic Assumptions. You are requested to return your comments and
suggestions for additions or modifications to Staff B by 19 January
1951, at which time a statement of assumptions reflecting the
consolidated views of OSO will be drawn up and presented to ADSO.
2. Since the attached assumptions are tentative and unofficial,
they will not be discussed outside CSO without prior clearance of ADSO,
Eno or Staff 136 Subsequently* the revised assumptions will be
forwarded by ADSO to appropriate offices of CIA for their comment and
suggestions. Eventually, it is intended that there be Obtained the
comments or confirmation of the Department of Defense, JCS, or the
National Security Council as approp
riatfgX1 A9a
Approved For Release 2
Chief, Staff B.
0dMRDP83-00764R000600100040-?r,/
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? SECRET Assuve. Approved For For ReleakeaVIR flititcjilq,p4M0764R94219600100040-2
Basic Assueetions/2
(Tertative, as of 12 January 1951)
The following assumptions have been made for internal OSO planning and
operational purposes:
1
1, The Soviet Union will precipitate a world war.
i 17152
2. DeDay (the commencement of general hostilities) will oc7-rVief iteel .
eedle161.52-.
-3. Disruptive action stimulated by the Soviet Union will take place in a
number of peripheral areas prior to DeDay.
4. The continental United States will be subjected to atemic attack, conven-
tional bombing, and sabotage.
5. The United States will have no formal notice of the commencement of any
agressive action by the USSR.
6. The Soviet Union and its satellites will be opposed by the United States,
the other Atlantic Pact nations., and certain other nations.
7. CIA will remain essentially a civilian organization,
8. CIA field units in combat areas or theater commands will be attached to
military units and will be headed and largely staffed by military personnel.
9. In time of war a proportionately larger CO effert thee at present will be
spent in direct support of military activitY.
10. The United States and its allies will be denied the use of certain areas
as operational, and support bases as a result of the Soviet advance. This
advance willoccur...in the following phases
Pham.A. (immediately following the outbreaT: of hoetilities)e-ell of
Europe except Noruay? Sweden, Spain, Portugal, and the BritialeIsles;
ZOTt; the entire Middle East area, including the aorthweat corner of
- Saudi Arabia- Afghanistan, Nepal; Bhutan, Burma, tae northern half of
the Malay. Peninsula, Theiland? Indo-China, Korea, ead Hokkaido.
aga&p. (D-Day plus approXimately 6 menthe) aeeas specified under ?
Fhaes A plus Norway, Sweden, Portugal, Spain, the aortheen'pert of Algeria,
.Tunisia; Libya, the MaleyPeninsulee Forlieea? and japan-(excluding Okinawa).
Ilogek (D-Dayplue approximately 1 year) -'allernes specified under Phases
A and fl plus all of North Africa south to about the 20th YereIlel North;
Saudi Arabia; Pakistan, India, Caylc,- Remetra, nal the Fkilippines (net
Okinawa).
Beese D (D-Day plus approximately 18 mentlie)--211 ereav specified 7or
Phases A, Bp and C plus the British Isles; rakar, )1leetoum.
Aff*P8OtilitPoviltetedext2COOLOSLIAC eactWIRnitle7?413Q0N1
and Alaska knot Okinawa).
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