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                  <text>Document disclosed under the Access to Information Act ■
Document divulge en vertu de la Loi suri'acces a /'information

■

Copy No.

J

Ext. 182B

5, of five copies#

FILE COPY
OTTAWA FILE
No

WISER

Letter No. .........................................

SECURITY CLASSIFICATION

Date.. August . 7th, . 1952.

' WISER - TOP SECRET

FROM: THE CHARGE D'AFFAIRES, CANADIAN EMBASSY, WASHINGTON, D.C.
TO:

THE UNDER-SECRETARY OF STATE FOR EXTERNAL AFFAIRS, CANADA

Reference..

.. OUT. WAser. Letter. No.. 23. of March. 5th, . 1952.........

Subject:

' night necessitte' the use ’ of Atomi c Weapons.................

British-American Consultations on Developments which ...
k

Copies Referred

To....................

1.
In the Wiser letter under reference the
Ambassador reported a discussion which took place at the
State Department on February 5th between British and U.S.
officials, in which Sir Oliver Franks set out certain
views of the U.K. Government on the nature and effects of
In the course of this statement, Sir
a general war.
Oliver outlined particularly the views of the British
Government regarding the possible uses of the technique
of ultimatum as a means of deterring Soviet aggression
in the event of a clear indication of Soviet aggressive
intent on some area the defence of which was regarded as
essential to the safety of the Western world. .
2*

As the Ambassador reported, the discussion was

inconclusive and Sir Oliver was asked to seek a further
clarification of U.K. views on this point.

- No. of Enclosures

Post File
No

In a conversation with Mr. E. E. Tomkins, First
3.
Secretary of the British Embassy,. on Thursday, August 7th,
Mr.. Ignatieff was told that some further views of the U.K.
Government on this question of the possible use of ultimata
to the Soviet Union were expressed in one of the talks
which took place when Air Marshal Slessor visited
In a conversation at the State Department at
Washington.
which Sir Oliver Franks and Air Marshal Slessor were
present, the British Ambassador informed the State Department orally of these views, which had been communicated to
him by the Foreign Office. Apparently the U.K. authorities
now consider that it is impossible to lay down in advance
Recognizany firm rule on the possible use of ultimata.
int that there might be serious military disadvantages in
giving the Soviet Government advance notice of allied
intention, it is now suggested that it would be necessary
to consider in the circumstances which might arise, the .
balance of advantage and disadvantage which would be gained
from employment 'of this method., it was the British view,
however, that the ultimatum, if used,, should be presented
to the Soviet Government in secret in the first instance at
In the event of a satellite attack,
least,, as a warning..
it would be necessary to determine in the circumstances of
each case whether, the ultimatum would be made to the
satellite government or to the Soviet Government.
Mr. Tomkins said that the U.S. officials present
o
at the meeting noted this further statement of U.K.. views
and made no comment.

(Sgd. )
81.gm

W. D. MATTHEWS.
Charge d*Affaires.

00168

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