wa,
CASTLE

From time to tine various Department of Defense agencies
concerned with operational probleas connected with Pacifie
Proving Grounds tests have raised infermally the question
of the approximate date of whatever operation is planned

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bring this matter to the attention of the Joint Chiefs of

KIL

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for that area following IVY. Inasmuch es you may wish te

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Staff for necessary support planning purposes, it is our
opinion that a date of approximately September-October 1955
represents the best guess that can be made at this tize for

ocoupaney of Eniwetok Atoll following IVY. CASTLE is the
code nese assigned to the series of atomia tests at the
Pacifie Preving Grounds in the Fall of 1953,

We will keep the Comnittee informed in any changes in ths above plans.

Sineerely yours,

)

UNITED STATES ATOMIQ SHERGY COakiISSIow

Honcrable Robert LeSaron
Chairman, Military Uiaison Comittee
te the Atomie mnergy Comission
CC:;Chief, AFSHP
Manager, SFO (2)

rector, LASL
J-Division Leader, LASL
JTF-132
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