pages SHGCovina t consists of of Copy No. 4G }. 21 Serics_ B - UNITED STATES © ATOMIC ENERGY COMMISSION WASHINGTON 25, D. C. October 25, 1955 Dear Mr. Secretary: To meet the veduirements of tre atomic weapons research and development program and of the Devartment of Defense weapons effects program, I propose to request the President to authorize the conduct of a series of atomic tests at the Pacific Proving Ground, commencing about May 1, 1956, The proposed tests, designated Operation REDWING, are . designed to achieve objectives vital to our continued PPOBTESS in the researchand development of atomic..weaponsand..in--the ony improvement of our atomicosfenses . —— a — Ge ‘Although there will be a greater number of shots in REDWING than there were in the previous Operation CASTLE, the total cumulative yield expected from REDWING is considerably less than one-half the cumulative yield obtained duringCASTLE, | / = TUNETMOPE 5: “ImMuM eX yieldoftheIlaéreést fh, rinele slot during REDWING is about one-third the max imum obtained on the largest single shot in CASTLE. Throughout Operation REDWING, it is intended to establish a danger area around the Pacific Proving Ground at least as large as that used during the later phases of Operation CASTIA.: Planning for Operation REDWING is in an advanced stage, and it now appears desirable to seek early Presidential approval of this very important program, By separate letter, I. have recently requested formal concurrence and support from the Department of Defense. . After receipt of Presidential approval, but not before January 1, 1956, we plan to make a suitable public announcement of these tests. This announcement will be coordinated with the Operations Coordinating Board, = RESFRECTEDDATA This document contains restricted data as defined in the Atomic Energy Act of 1954. Its transmittal or the disclosure of its eontents in any manner to an unauthorized person i8 prohibited. “

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