END OF PHASE 1
Agency: JCS
Document date: 07/23/1962
Document type: MEMORANDUM

## Page 1

is !

Date

Page

08/28/98

1

JFK ASSASSINATION SYSTEM

IDENTIFICATION FORM

AGENCY INFORMATION

AGENCY : JCS

RECORD NUMBER

:202-10001-10169

RECORDS SERIES

FOIA SERIES

AGENCY FILE NUMBER

.: DOC 170

Released under the John

Assassination Records

Collection Aet of 1992

144 USC 2107 Notel.

Case#:NW 54214 Date:

09-13-2017

--

DOCUMENT INFORMATION

ORIGINATOR :

FROM

TO

TITLE : END OF PHASE 1

DATE

: 07/23/62

PAGES

: 24

SUBJECTS

OPERATION MONGOOSE

DOCUMENT TYPE : MEMORANDUM

CLASSIFICATION : TOP SECRET

RESTRICTIONS

: 1C

CURRENT STATUS : RELEASED WITH DELETIONS

DATE OF LAST REVIEW : 07/30/98

OPENING CRITERIA

COMMENTS : Reviewed by JCS, CIA, State,

OSD.

EXEMPT PER E.O. 13526

SEC 3.3(b) SAXS

DATE EXEMPTED: MAR

2016

US RE-REVIEW DATE: 31 DEL 2037

OKAY TE RELEASE AS REDACTED W/CIA CONCURRENCE

[R] - ITEM IS RESTRICTED

HH 54214 DocId: 32424900 Page 1

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## Page 2

TOP

EGRET

.c. PT Boats. DOD reconditioned a PT boat for possible

use by CIA. In addition, DOD obtained certain data on

characteristics and costs of PT boats manufactured by other

countries.

d.. Voice Rat

• Broadcast

from a Submarine. DOD

nade:a submarine

lavailable to

FA for the conduct of voice

radio broadcasts near Cuba by the CIA.

e. Overflights of Cuba. DOD has conducted several

reconnaissance and photographic missions over Cuba for the

CIA.

f. Utilization of AVON-PARK, Florida, by CIA as a Base

for the Training of Cuban Refugees. DOD investigated the

feasibility of using certain facilities at AVON-PARK for the

training of Cuban refugees in guerrilla warfare.

Oil Drum Mines. DOD transferred 40 oil drum mines

to CLA

to duty with Clean Officer to CIA. DOD detailed an officer

9 be in charge of small boat operations at

Miami, Florida.

i. Contingency Plan for Overt US Military Intervention

in Cuba. In order to insure a decisive US military capability

for overt military intervention in Cuba, CINCLANT's regular

contingency plan for Cuba has been updated. Attempts are

being made to reduce the reaction time required for imple-

mentation of this plan, without piecemeal commitment of US

forces.

j. Alternate Contingency Plan for Overt US Military Inter-

vention in Cuba. CINCLANT developed an alternate plan which

accomplished a reduction in reaction time but requires piece-

meal commitment of forces. In order to reduce the risk in-

herent in such an operation CINCLANT is seeking means for

reduction of the reaction time without piecemeal commitment.

k. Cover age Deception Plan. This plan has been developed

for the purpose dIcevering the prepositioning of forces allocated,

to the contingency plans for overt military intervention in Cuba.

2

TOP SECRET

HH 54214 DocId:32424900 Page 2

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## Page 3

TOP SECRET

It also includes means designed to provoke Cuban reaction and

thus act as a triggering device for US intervention.

1. Air Strikes Against Cuba. A plan has been developed

for the use of airpower only following a national policy decision,

to suppress and/or neutralize Cuban forces pending the execu-

tion of an assault or to be executed in support of an internal

revolt.

m. Air and Sea Blockade of Cuba. A plan has been develop-

ed for the complete air and sea blockade of Cuba within 48 hours

after decision.

n. Civil Affairs and Military Government. An outline plan

providing guidance .for the conduct of civil affairs and for a

provisional military government for Cuba has been prepared.

0. DOD's Position as to its Stake and Proposed Role in the

Removal of the Communist Regime from Cuba. This paper

included a statement of conditions under which Defense believes

that overt military intervention in Cuba could be accomplished

without leading to general war and without serious offense to

public opinion.

p. BW/CW Capabilities. A paper was prepared listing the

things that can be done against Cuba in BW/CW field.

9. Air Re-supply. Four aircraft and crews have been

readied for air re-supply missions over Cuba.

I. Risk Estimate. An estimate was prepared concerning

the risk involved in air re-supply missions over Cuba.

s. Manufacture of Soviet Aircraft. A survey was made con-

cerning the US capability for the covert production of facsimiles

of Soviet aircraft.

t. Military Intelligence. A detailed list of Essential Elements

of Information was prepared in February 1962 covering the require-

ments of the Caribbean Survey Group and CINCLANT and was levied

on the Intelligence Community for fulfillment: Reconnaissance

activities consisting of overhead reconnaissance, air patrols;

electronic collection and special operations were implemented.

Specific intelligence requirements to be used in the interrogation

of knowledgeable refugees covering items of military, political

3

TOP SECRET

HH 54214 DocId:32421900 Page 3

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## Page 4

TOP SECRET

e. Summary - Our knowledge of Cuban military order of

battle, especially ground order of battle, has dropped off con-

siderably in recent weeks. Changes in unit organization and in

the numbering system as well as the militia nature of the organi-

zation itself make OB material perishable. Until such time as a

definite target date and objective is set making it possible to

inject a sufficient quantity of trained observers into the area with

specific targets, this situation will probably continue.

4. Estimate of the Potential for Military Operations within Cuba -

Should a policy decision be made to militarily intervene in Cuba, the

U.S. could:

ay with to-days of preparation, execute a coordinated airborne-

amphibious assault which it is anticipated would gain control of key

military installations and the principal centers of population of Cuba

within 10 days and result in minimum US and Cuban casualties.

b. Should the situation demand, a piecemeal commitment of

US forces could be made|with reaction times approximately as follows:

2 Airborne Divisions

5 days (para-drop units only)

• 4 Marine BLTS

7 - 8 days

Following Forces

15 - 18 days

: (This operation would involve a dangerous element of risk. )

c. In conjunction with either of the actions described in a and b,

above, cover and deception plans have been developed which, if executed,

would result in prepositioning of forces assigned to the invasion of Cuba

and could thereby result in an over-all reaction time of approximately

12 days for a coordinated assault.

Air strikes could be conducted against selected targets in

Cuba within 6, 12 or 24 hours; the time dependent upon airerast

availability and desired intensity of attack.

e. Ait-sea blockade can be initiated within 24 hours with effective-

ness increasing to a complete blockade within approximately 48 hours.

5. Factors Worth Considering in Deciding on One of the Following Four

Courses of Action for the United States to Follow in Relation to Cuba:

a. Cancel operational plans; treat Cuba as a Bloc nation; protect

Hemisphere from it.'

• 7

TOP SECRET

HH 54214 DocId:32424900 Page 4

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## Page 5

...

TOP SECRET

c. PT Boats. DOD reconditioned a PI boat for possible

use by CIA. In addition, DOD obtained certain data on

characteristics and costs of PT boats manufactured by other

countries.

d..

Voice Radio Broadcasts

e. Overflights of Cuba. DOD has conducted several

reconnaissance and photographic missions over Cuba for the

CIA.

f. Utilization of AVON-PARK, Florida, by CIA as a Base

for the Training of Cuban Refugees. DOD investigated the

feasibility of using certain facilities at AVON-PARK for the

training of Cuban refugees in guerrilla warfare.

to CLA

oil Drum Mines. DOD transterred 10 oil druza mined

h. Detail

to duty with CL

an Officer to CLA. DOD detailed an officer

i. Contingency Plan for Overt US Military Intervention

in Cuba. In order to insure a decisive US military capability

for overt military intervention in Cuba, CINCLANT's regular

contingency plan for Cuba has been updated. Attempts are

being made to reduce the reaction time required for imple-

mentation of this plan, without piecemeal commitment of US

forces.

j. Alternate Contingency Plan for Overt US Military Inter -

vention in Cuba. CINCLANT developed an alternate plan which

accomplished'a reduction in reaction time but requires piece-

meal commitment of forces

In order to reduce the risk in-

herent in such an operation CINCLANT is seeking means for

reduction of the reaction time without piecemeal commitment.

k. Cover are Deception Plan. This plan has been developed

for the purpose

2

TOP SECRET

HH 54214 DocId:32424900 Page 5

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## Page 6

TOP SECRET

1. Air Strikes Against Cuba. A plan has been developed

for the use of airpower only following a national policy decision,

to suppress and/or neutralize Cuban forces pending the execu-

tion of an assault or to be executed in support of an internal

revolt.

m. Air and Sea Blockade o Cuba. A plan has been develop-

ed for the complete air and sea blockade of Cuba within 48 hours

after decision.

n. Civil Affairs and Military Government. An outline plan

providing guidance for the conduct of civil affairs and for a

provisional military government for Cuba has been prepared.

o. DOD's Position as to its Stake and Proposed Role in the

Removal of the Communist Regime from Cuba. This paper

included a statement of conditions under which Defense believes

that overt military intervention in Cuba could be accomplished

without leading to general war and without serious offense to

mublic opinion.

9.

Air Re-supply. Four aircraft and crews have been

readied for air re-supply missions over Cuba.

I. Risk Estimate. An estimate was prepared concerning

the risk involved in air re-supply missions over Cuba.

s. Manufacture of Soviet Aircraft. A survey was made con-

cerning the US capability for the covert production of facsimiles

of Soviet aircraft.

t. Military Intelligence. A detailed list of Essential Elements

of Information was prepared in February 1962 covering the require-

ments of the Caribbean Survey Group and CINCLANT and was levied

on the Intelligence Community for fulfillment. Reconnaissance

activities consisting of overhead reconnaissance, air patrols,

[electronic collection and special operations were implemented.

Specific intelligence requirements to be used in the interrogation

öf knowledgeable refugees covering items of military, political

TOP SECRET

HH 54214 DocId:32424900 Page 6

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## Page 7

TOP SECRET

e. Summary - Our knowledge of Cuban military order of

battle, especially ground order of battle, has dropped off con-

siderably in recent weeks. Changes in unit organization and in

the numbering system as well as the militia nature of the organi-

zation itself make OB material perishable. Until such time as a

definite target date and objective is set making it possible to

inject a sufficient quantity of trained observers into the area with

specific targets, this situation will probably continue.

4. Estimate of the Potential for Military Operations within Cuba -

Should a policy decision be made to militarily intervene in Cuba, the

U.S. could:

With-18 days of preparation, execute a coordinated airborne-

amphibious assault which it is anticipated would gain control of key

military installations and the principal centers of population of Cuba

within 10 days and result in

n'minimum US and Cuban casualties.

b. Should the situati

US forces could be mad

demand, a piecemeal commitment of

c.

In conjunction with either of the actions described in a and b,

above, cover and deception plans have been developed which, if executed,

would result in prepositioning of forces assigned to the invasion of Cuba

and could thereby result in an over-all reaction time of approximately

12 days for a coordinated assault.

Cuba air strikes could be inducted against selected targets in

the time dependent upon aircraft

availafnity and desired intenalty of attack.

e. Air-sea blockade can be initiated within 24 hours with effective

ness increasing to a complete blockade within approximately 48 hours.

5. Factors Worth Considering in Deciding on One of the Following Four

Courses of Action for the United States to Follow in Relation to Cuba:

a. Cancel operational plans; treat Cuba as a Bloc nation; protect

Hemisphere from it.

7

TOP SECRET

HY 54214 DocId: 32424900 Page 7

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