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                  <text>Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information

FM CANDELNATO MAR 14/6*9* SECRET
jfctT

EXTER 7 3 1

IMMED DE LDN

"L T- ~ U

-

/

INFO LDN TT PARIS BRU WSHDC PRMNY BONN ROME HAGUE DISARMDELGVA DE LDN
CANFORCEHED DE OTT
CANMILREP NATO
BAG ANKRA ATHNS COPEN OSLO WSAW PRGUE BGRAD DE LDN LSBON DE OTT
PRESIDENT NIXONS DECISION ON A3M DEFENCE
I HAVE JUST RECEIVED COPY OF FOLLOWING LET FROM USA AMBASSADOR
CONTAINING ADVANCE NOTIFICATION THAT USA DECISION

IS TO GO AHEAD WITH

ABM SYSTEM BUT THAT IT IS TO BE DEPLOYED PRIMARILY FOR DEFENCE OF
MINUTEMEN RATHER THAN AGAINST CHINESE ICBM REP QUOTE DEAR MANLIOS
I HAVE BEEN ASKED TO INFORM YOU AND MEMBERS OF THE MAC OF THE MAIN
POINTS OF A STATEMENT ON DEPLOYMENT OF AN ANTI-BALLISTIC MISSILE
SYSTEM,WHICH PRESIDENT NIXON I S SCHEDULED TO MAKE LATER TODAY.WE
HAVE BEEN FURNISHED A SUMMARY OF THESE POINTS,AND THIS IS ENCLOSED.
I KNOW IT IS UNNECESSARY TO REMIND YOU THAT THIS INFO SHOULD BE
CLOSELY HELD UNTIL AFTER THE PRESIDENTS ANNOUNCEMENT.
AFTER CAREFUL CONSIDERATION OF WHETHER OUR DECISION WOULD COMPLICATE
REACHING A_1LAGREEKENT_JLTTM " s g f f

n

" SXR4X£GIC_ARMS LIMIT AT IONS, WE

HAVE CONCLUDED THAT IT WOULD NOT/NOT DO SO.SOVIET INTEREST IN
STRATEGIC ARMS TALKS WAS NOT/MOT INHIBITED BY THE DECISION OF THE
PREVIOUS ADMIN TO DEPLOY THE SENTINEL ABM SYSTEM; IN FACT,SOVIET
AGREEMENT TO PROCEED WITH SUCH TALKS FOLLOWED THAT DECISION.WE
BELIEVE THAT THE MODIFICATIONS THAT HAVE BEEN MADE IN THE PREVIOUS
. «aZ

•

000320

�Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information

PAGE TWO 7 3 1 SECRET
PROGRAM SHOULD GIVE USSR EVEN LESS REASON TO VIEW OUR A3M EFFORT PX y
AN OBSTACLE TO TALKS. FINALLY, USA,OF COURSEPREMAlNS PREPARED TO
DISCUSS LIMITATIONS ON DEFENSIVE AS WELL AS OFFENSIVE STRATEGIC
MISSILES IN TALKS WITH USSR.
WE UNDERSTAND THAT THE ASM DEPLOYMENT PROGRAM WILL BE REVIEWED
ANNUALLY,TAKING INTO ACCOUNT SUCH FACTORS A.S TECHNICAL DEVELOPMENTS
CHANGES IN THREAT, AND THE DIPLO CONTEXT, INCLUDING TALKS ON ARMS
LIMITATIONS.
COPIES OF THIS LET AND ITS ENCLOSURE ARE ALSO BEING SENT TO OUR
COLLEAGUES ON THE COUNCIL.
WARMEST REGARDS,SINCERELY,HAELAN CLEVELAND.
USA ABM PROGRAM
DESCRIPTION OF THE SYSTEMsTHE MODIFIED SENTINEL PROGRAM I S DESIGNED
TO FULFILL THE FOLLOWING OBJECTIVE St
A. PROTECTION FOR OUR LAND-BASED RETALIATORY FORCES AGAINST A DIRECT
ATTACK BY USSR.
3.DEFENSE OF OUR HEAVILY POPULATED AREAS AGAINST THE KIND OF ATTACK
4

COMMUNIST CHINA IS LIKELY TO BE. ABLE TO EOUi^T WITHIN THE DECADE.
C. PROTECTION AGAINST THE POSSIBILITY OF ACCIDENTAL CR IRRATIONAL
ATTACK FROM ANY SOURCE.
THE PROGRAM INVOLVES A PHASED DEPLC^EEMT SCHEDULE CLOSELY ALIGNED
WITH THE EMERGING CHINESE AND SOVIET THRIATS.CONSTRUCTION FOR THE
INITIAL PHASE WILL TAKE PLACE AT TWO OF CUR MINUTEMAN FILES:
»• . o

000321

�„.„,- ~ . . n - -

„, *

PAGE THREE 731

„-„„,,..

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Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'informatio

SECRET'

MALMSTROM AIR FORCE BASE,MONTANA AND GRAND FORKS AIRFORCE BASE,
HTHDAKOTA. CONSTRUCT ION OF RADARS AND DEPLOYMENT OF MISSILES AT THE
FIRST OF THESE SITES I S SCHEDULED TC BE COMPLETED IN FOUR YEARS.
THE COMPONENTS OF THE SYSTEM CONSIST OFCA)PERIMETER ACQUISITION
RADARS,FOR LONG-RANGE DETECTION OF ANY KIND CF NUCLEAR ATTACKCB&gt;
MISSILE SITE RADARS,FOR ACCURATE GUIDANCE OF THE DEFENSE MISSILES
TC THE INCOMING'WEAPONSCC)SPARTAN MISSILES,FOR HIGH ALTITUDE ' ' ""

**

INTERCEPTION OF ATTACKING WEAPONSCD) SPRIN*T MISSILES, FOR LOWER' '
ALTITUDE INTERCEPTION IN THE ATMOSPHERE TO PROVIDE LOCAL PROTECTION,
TOTAL'INVESTMENT COSTS FOR THE FljLL DEPLOYMENT WILL BE ABOUT
DOLLARS 6 . 6 BILLION, SOME DOLLARS 2E0 MILLION MORE THAN SENTINEL.
.

HOWEVER,BUDGETARY REQUESTS FOR NEXT YEAR WILL BE SIGNIFICANTLY LESS '
THAN WHAT THE PREVIOUS ADMIN REQUESTED FOR SENTINEL.
THE FULL DEPLOYMENT SCHEDULE FOR THE R A D A R S AND MISSILES WILL BE*
DEVELOPED ON THE BASIS CF CAREFUL ASSUMPTIONS OF THE THREATS AT
THE T I M E ;

*

J l

•

•- i

COMPLETION OF THE SYSTEM WILL PROVIDE:
A. SIGNIFICANT LOCAL PROTECTION FOR PART OF OUR MINUTEMAN FORCE PLUS
THE OPTION FOR 'FURTHER EXPANSION IF THE THREAT JUSTIFIES

IT.

B.VIRTUALLY COMPLETE AREA PROTECTION OF USA AGAINST THE EARLY CHINESE
ICBM THREAT OR AGAINST IRRATIONAL ATTACK BY ANY COUNTRY.
C.AREA PROTECTION FOR STRATEGIC BOMBER BASES AGAINST ATTACK FROM
BALLISTIC MISSILE SUBMARINES CR SEMI-ORBITAL WEAPONS.
, /",

e o

I " • .*'*

*"

000322

�Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information

PAGE FOUR 731

SECRET

D. SIGNIFICANT PROTECTION FOR NATL COMMAND AUTHORITIES AGAINST A
MODERATELY HEAVY ATTACK.
COMPARISON OF PRESIDENTS BALLISTIC MISSILE DEFENSE PROGRAM WITH
SENTINEL PROGRAM:
PRESIDENTS PROGRAM
1,CONCEPT: PROGRAM I S DESIGNED TO FULFILL THREE OBJECTIVES:
ft. PROTECTION FOR OUR LAND BASED RETALIATORY FORCES AGAINST A DIRECT
ATTACK BY USSR.
B.DEFENSE OF OUR HEAVILY POPULATED AREAS AGAINST THE KIND OF ATTACK
COMMUNIST CHINA IS LIKELY TO BE ABLE TO MOUNT WITHIN THE DECADE.
C, PROTECTION AGAINST THE POSSIBILITY OF ACCIDENTAL OR IRRATIONAL
ATTACK FROM ANY SOURCE.
2.MISSIONS:
A.DEFENSE OF MINUTE MAN-PROVIDE SIGNIFICANT LOCAL PROTECTION FOR PART
OF OUR MINUTEMAN FORCE PLUS OPTION FOR FURTHER EXPANSION IF THE
THREAT MATERIALIZES.
B.AREA DEFENSE-COMPLETE PROTECTION AGAINST EARLY,UNSOPHISTICATED
CHINESE ICBM THREAT,OR AGAINST IRRATIONAL ATTACK BY ANY COUNTRY.
SOKE PROTECTION AGAINST MORE SOPHISTICATED CHINESE THREAT.EXTENSIVE
AREA DEFENSE IN ALL DIRECTI0NS.3Y REDUCING NUMBER AND RELOCATING
RADAR AND MISSILE SITES AND BY ENABLING RADARS TO LOOK OTHER THAN
NORTHWARD, PROVIDES PROTECTION FOR BOMBER BASES AND CITIES AGAINST
SOVIET SUBMARINE-LAUNCHED OR ORBITAL SPACE-LAUNCHED ATTA.CKS.RA.DARS
...5

000323

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Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information

PAGE FIVE 7 3 1 SECRET
ML&gt;

MISSILES WILL BE RELOCATED AWAY FRCM C I T I E S .

CDEFENSE OF NATL COMMAND AUTHORITIES-HAS SIGNIFICANT PROTECTION FOR
PRINCIPAL NATL COMMAND AUTHORITIES AGAINST MODERATELY HEAVY ATTACK.
D.PROTECTION OR DAMAGE LIMITATION AGAINST USSR-STILL VERY LTD,BUT
BETTER DIRECTIONAL COVERAGE.NO/NO ORGANIC BASIS FOR LATER
INSTALLATION OF A CITIES DEFENSE.
E. PROTECTION AGAINST ACCIDENTAL OR IRRATIONAL ATTACK-COMPLETE
PROTECTION AGAINST SUCH ATTACKS FROM ANY SOURCE.

SENTINEL
!.CONCEPTS
PRIMARY PURPOSE:DEFENSE OF USA AGAINST THE EARLY CHINESE ICBM THREAT.
SECONDARY PURPOSE: PROVIDE SOME LOCAL DEFENSE FOR MINUTEMAN FORCES
AND THE OPTION TO INSTALL FULL LOCAL PROTECTION OF OUR MINUTEMAN
FORCE IF THE THREAT MATERIALIZED.
2.MISSIONS:
A. DEFENSE OF MINUTEMAN-PROVIDED MINIMAL DEFENSE OF MINUTEMAN AND
AN OPTION FOR ADDITIONAL DEFENSE.
8 . AREA DEFENSE-AREA PROTECTION AGAINST ATTACKS FROM THE NORTH, IE
CHINA ONLY. NO/NO SIGNIFICANT AREA PROTECTION OF BOMBERS OR CITIES
AGAINST ATTACKS FROM SOVIET BALLISTIC MISSILE SuBMARINES(SLBMS)
OR FRACTIONAL ORBITAL BOMBARDMENT SYSTEMS(FOBS) .RADAR AND MISSILE
SITES NEAR C I T I E S .
CDEFENSE OF NATL COMMAND AUTHORITIES-PROVIDED NO/NO MORE THAN FOR
««. 6

000324

�Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information

PAGE SIX 7 3 1 SECRET
REST OF COUNTRY.

,

^

D.PROTECTION OR DAMAGE LIMITATION A G A I N S T USSR-VERY LTD AND ONLY
AGAINST ATTACKS FROM NORTH; NOT/NOT DESIGNED FCR THIS PURPOSE.
HOWEVER,MAINTAINS OPTION OF CITIES DEFENSE AGAINST SOVIET THREAT.
E.PROTECTION AGAINST ACCIDENTAL OR IRRATIONAL ATTACK-PROTECTION
AGAINST SUCH ATTACKS FROM NORTH ONLY UNQUOTE.

000325

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              <text>RG25-A-3-c, file 27-11-7, "DEFENCE - CONVENTIONAL AND NUCLEAR ARMAMENTS - ANTI - BALLISTIC MISSILES (ABM) = DEFENSE - ARMEMENTS DE TYPE CLASSIQUE ET NUCLEAIRE - ENGINS ANTIMISSILES (ABM)," vol. 10357, part 4, Library and Archives Canada, (LAC).</text>
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