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

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COMPREHENSIVE TEST BAN TREATY I
THIS TEL IS THE FIRST CF THREE DEALING WITH VARIOUS ASPECTS CF THE

C.T.B. IN WHICH WE SHALL EE PROVIDING YOU WITH GUIDANCE FCR THE RESUMED
SESSION OF THE ENDC. IN THIS MESSAGE WE SET OUT SOME OBSERVATIONS DERIVED
FROM A REVIEW OF OUR POLICY ON VERIFICATION OF A CTB.
WE FULLY SHAEE THE VIEW THAT ACHIEVEMENT OF A COMPREHENSIVE TEST

2.

BAN IS AN IMPORTANT AND PRESSING DISARMAMENT OBJECTIVE. APART FROM
INHIBITING THE ARMS RACE AND ACTING AS A NON-PROLIFERATION MEASURE, A
COMPREHENSIVE TEST BAN IN THE NEAR FUTURE WOULD CONTRIBUTE SIGNIFICANTLY TO
A REVIVAL OF CONFIDENCE IN ARMS CONTROL AND DISARMAMENT DISCUSSIONS. WE ARE
COGNIZANT CF THE DANGER THAT LACK QF AGREEMENT IN GENEVA BEFORE THE FALL
SESSION OF UNGA COULD LEAD TO A DISILLUSIONMENT WITH ENDC AND A PREMATURE
CALL FOR CONVOCATION OF A WDC. AS WE CONTINUE TO THINK THAT THE ENDC PROVIDES THE MOST PRACTICAL AND HOPEFUL FORUM FOR AGREEMENT BETWEEN EAST AND
WEST, WE ARE CONCERNED THAT IT DEMONSTRATE ITS EFFECTIVENESS.
3.

IN VIEW OF THE LACK OF PROGRESS ON A NON-PROLIFERATION TREATY AND

OTHER ARMS CONTROL PROPOSAIS, ATTENTION MAI NOW CENTRE UPON A COMPREHENSIVE
... &lt;-

DISTRIBUTION
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STANDARD

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(COMMUNICATIONS DIV)

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Disarmament

APPROVEO/AUTORISE

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000051

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^ f c E S T BAN AS THE MAIN AREA IN WHICH AGREEMENT MIGHT BE FOUND. W AGREE THAT
YOU SHOUU) BE PREPARED TO DISCUSS THE MATTER IN GREATER DETAIL THAN WAS
POSSIBLE DURING THE PAST SESSION AND HAVE BEEN GRATEFUL FOR THE VIEWS
EXPRESSED IN YOURTEL 103 MARCH 9 AND SUBSEQUENT MESSAGES CONCERNING THE NEED
TO REVIEW THE CDN POSITION ON THIS PROBLEM. AS WE INFORMED YOU, WE APPROACHED
THS SCIENCE AND DEFENCE COMMUNITIES HERE IN ORDER TO OBTAIN A FULL TECHNICAL
BACKGROUND FOR ANY POSITION WHICH WE MIGHT ADOPT DURING THE COMING SESSION,
i

WE HAVE NOW HAD BEPLIES FfiOM DND, DRB AND M &amp; T S AND HAVE BEEN CONSIDERING
THE CONCLUSIONS TO BE DRAWN FROM THEIR ANALYSES OF THE ISSUES INVOLVED.
U.

A MAJOR DIFFICULTY IN MAKING ASSESSMENTS HAS BEEN A LACK OF

INDEPENDENT KNOWLEDGE* OUR SCIENTISTS POINT OUT THAT AS A RESULT OF CDA*S
NON-NUCLEAft HOLE, WE AHE NO LONGER PRIVY TO MANY OF THE HEGENT DEVELOPMENTS
IN THE USA NUCLEAR PROGRAMME AND CONSEQUENTLY ARE OFTEN UNABLE TO CHALLENGE
AMERICAN VIEWS EFFECTIVELY. FOR EXAMPLE, CUR SCIENTISTS ACKNOWLEDGE THAT
MANY CF THEIR VIEWS ON THE TECHNOLOGY OF THE ABM R AND D ARE LITTLE MORE
THAN CONJECTURE. FURTHERMORE, TO THS EXTENT THAT THEY DO HAVE INFORMATION,
OUR SCIENTISTS HAVE DERIVED IT FROM THE AMERICANS SO THAT IT TENDS TO CONFIRM
THE USA POSITION.
£#

THERE AHE ALSO SEVERAL AREAS IN WHICH THE AMERICANS THEMSELVES DO

NOT HAVE PRECISE INFORMATION AND THUS ARE UNABLE TO PHEDICT WITH ANY DEGREE
• ' QF ASSURANCE WHAT TO EXPECT. THEY DO NOT KNOW E.G. WHETHER A SINGLE UNDERGROUND TEST MIGHT NOT PROVIDE SIGNIFICANT ADVANCES IN THE NUCIEAR ART OR
WHETHER THE SOVIET UNION HAS BEEN DEVELOPING SOPHISTICATED AND EFFECTIVE '
DEFENSIVE WEAPONS AGAINST EXISTING USA ICBMS.
6.

MOST IMPORTANT IS THE REALIZATION THAT DETECTION BY SEISMIC MEANS
T O T5f2

AT LONG. EANGE IS NOT NOW, AND 23 UNLIKELY IN THE FUTUREi AB&amp;E TO' PROVIDE;
SUFFICIENT ASSURANCES THAT THE SOVIET UNION IS NOT CONDUCTING C&amp;NDE5TINE
TESTS. IT IS TRUE THAT ANY PROPOSED INTERNATIONAL EXCHANGE OF SEISMIC DATS
WILL ENHANCE INDIVIDUAL NATION'S CAPACITY TO DETECT AND' IDENTIFY 4IUCI&amp;AR
TESTS.

000052

I T I S ALSO TRUE THAT LASA AND OTHER ARRAYS WILL CONTRIBUTE TO A

..* 3

/

�Document-disclosed under the Access to Information Act Document divulgue en vertu deQ&amp;SB&amp;ur I'acces a I'inform/ation

-3 *
LOWERING OF THE TECHNICAL DETECTION THRESHOU).

IT I S RECOGNIZED, HOWEVER,

THAT THE RESIDUUM &lt;F UNIDENTIFIED SEISMIC EVENTS WILL STILL BE SIGNIFICANT
PARTICULARLY WHEN ADVANCES IN DE-COUPLING ARE TAKEN INTO ACCOUNT.
7.

MOREOVER, IT I S EXTREMELY UNLIKELY THAT THE USA WILL MOVE FROM

ITS PRESENT POSITION IN THE FORESEEABLE FUTURE REGARDLESS OF INTERNATIONAL
PRESSURES.

IN EFFECT, RELUCTANCE TO DEPLOY AN ABM SYSTEM I S ALREADY IN

PART A USA CONCESSION TO THE VIEW THAT THE ARMS RACE SHOULD HE HALTED AND
TREATY .
A TEST BAN!SIGNED.
TESTING AS PART OF AN R AND D PROGRAMME I S THE CGMPROT

MISE POSITION WHICH PERMITS THE USA ADMINISTRATION TO WITHSTAND THE PREFERENCE OF CONGRESS AND THE JOINT CHIEFS FOR A FULL ABM INSTALLATION. jQS
A RESULT OF THE FACTORS OUTLINED IN PARAS k TO 7 WE HAVE WITH SOME RELUCTANCE CONCLUDED THAT WE ARE NOT WELL PLACED TO RECOMMEND TO THE MINISTERS
A FUNDAMENTAL CHANGE IN CANADIAN POLICY. IN THE CIRCUMSTANCES, CDA IS NOT
ABLE TO TAKE ISSUE ON TECHNICAL GROUNDS WITH THE USA POSITION ON ON-SITE
INSPECTIONS AND WE DO NOT THINK THAT WE SHOULD ATTEMPT TO PUT PRESSURE ON
THE USA TO ALTER ITS VIEWS. IN ADDITION TO THE FACT THAT THEBS IS A GOOD
DEAL IN USA ARGUMENTS ON THE NEED FOR THE NESTING OPTION, WE CAN SEE THAT
CRITICISM, WHETHER DIPLOMATIC OS PUBLIC, WOULD BE UNPRODUCTIVE AT THIS
TIME FOR, AS YOU HAVE REPCRTED, USA COULD ONLY HE MOVED FROM ITS POSITION
(AND THEN RELUCTANTLY) IF USSR DROPPED ITS OBJECTIONS TO ON-SITE INSPECTIONS.
9.

'.•'"'
YOU HAVE ALREADY REPORTED THAT AT THE RESUMED SESSION, THERE IS

A POSSIBILITY WESTERN DEIS WILL FEEL GREATER ISOLATION ESPECIALLY IF USSR
GIVES EVEN A SLIGHT INDICATION OF WILLINGNESS TO CONSIDER NON-ALIGNED
'PROPOSALS. TENDENCY WILL BE ApPAREKT MOST NOTICEABLY ON A COMPREHENSIVE
TEST BAN SO THAT SOME EFFCBT SHOULD M MADE TO MAKE WESTERN POSITION CLEAR
AND TO MITIGATE CHARGES OF .INTRANSIGENCE. IN COMMENTING CK A COMPREHENSIVE
TEST BAN BASED ON SEISMIC VERIFICATION ONLY, YOU SHOULD
. A) ALLUDE TO SWEDISH PROPOSALS ON THE EXCHANGE &lt;&amp;? SEISMIC DATA,
...

c.

000053

�Document disclosed under the Access to Information Act •
Document divulgue en vertu de fajffit&amp;ir I'acces a information

i
POINTING OUT THAT IT WOULD BE INAPPROPRIATE AT THIS STAGE TO
f
|

•'

.

•

TAKE A DECISION IGNORING ON-SITE INSPECTIONS WHEN INDIVIDUAL
i

COUNTRIES DO NOT HAVE, AND WILL NOT HAVE FOR SOME TIME, THE
.

NECESSARY SCIENTIFIC INFO AND TECHNICAL EQUIPMENT ON WHICH TO
'BiSl A CONSIDERED JUDGMENT ABOUT NUCI£AR DEMOTION. IT WOULD
BE PREFERABLE TO WITHHOLD JUDGMENT UNTIL COUNTRIES HAD HAD
TIME TO REVIEW THE EVIDENCE OF ANY EXCHANGE WHICH MIGHT RESULT
FROM SCIENTIFIC TALKS*
B) EMPHASIZE THE WAY IN WHICH THE WEST HAS MODIFIED ITS POSITION
IN RESPONSE TO TECHNOLOGICAL DEVELOPMENTS. CONSIDERABLE RESEARCH
AND STUDY HAVE BEEN DEVOTED TO ALL FACETS OF MONITORING A TEST
BAN SINCE 1958 AND THE SUBSEQUENT REDUCTION IN THE NUMBER OF
i.

REQUIRED ON-SITE INSPECTIONS REFLECTS THE PROGRESS MADE.
TECHNOLOGY HAS NOT REACHED THE POINT {AND MAY NEVER'DO SO) OF
MAKING UNNECESSARY THE RIGHT. TO INSPECT.
C) DISCUSS BRIEFLY THE TECHNICAL DIFFICULTIES NOW EXPERIENCED
IN DETECTION AND IDENTIFICATION AND THE OPPOSING ADVANCES IN
DECOUPLING AND TESTING SCIENCE IN GENERAL.
D) CONTRAST THE.MOVEMENT OF THE WEST TOWARD ACCOMMODATION ON
THE INSPECTION PBQBffiH WITH THE APPARENT USSR MQ/EMENT AWAY
FROM ACCOMMODATION, E . G . BY ITS WITHDRAWAL OF THE OFFERS OF
THREE ON-SITE INSPECTIONS MADE AT THE END OF 1 9 6 2 .
10.

IN VIEW OF THE PESSIMISTIC NATURE CF OUR STAND ON SEISMIC

VERIFICATION, WE WOULD HOPE THAT THERE COULD BE GREATER OPPORTUNITIES FOR
PROGRESS ON PROPOSALS FOR INSPECTION BY CHALLENGE AND A THRESHOLD TREATY,
AND WE SHALL BE COMMENTING ON THESE IDEAS SHORTLY.

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              <text>External to DisarmDelGeneva 160</text>
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              <text>5/30/1966</text>
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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 1, Library and Archives Canada, (LAC).</text>
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              <text>Anti-ballistic missiles</text>
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