TOP SECRET / [BLANKED] 001 EYES ONLY NATIONAL SECURITY INFORMATION * * * * * * * * * * * * * * * [BLANKED] * * * * * * * * * * * * * * * [BLANKED] COPY _ONE_ OF _ONE_. BRIEFING DOCUMENT: OPERATION [BLANKED] PREPARED FOR [ BLANKED ]: (EYES ONLY) [ BLANKED ] _WARNING_: This is a TOP SECRET - EYES ONLY document containing compartmentalised information essential to the national security of the United States. EYES ONLY ACCESS to the material herein is strictly limited to those possessing [BLANKED] clearance level. Reproduction in any form or the taking of written or mechanically transcribed notes is strictly forbidden. * * * * * * * * * * * * * * * [BLANKED] * * * * * * * * * * * * * * * T52-EXEMPT (E) TOP SECRET / [BLANKED] EYES ONLY EYES ONLY 001 -------------------------------------------------------------------------------- TOP SECRET / [BLANKED] 002 EYES ONLY * * * * * * * * * * * * * * * [BLANKED] * * * * * * * * * * * * * * * _[BLANKED]_ COPY _ONE_ OF _ONE_. SUBJECT: OPERATION [ BLANKED ] PRELIMINARY BRIEFING FOR [ BLANKED ] DOCUMENT PREPARED [ BLANKED ] BRIEFING OFFICER: ADM. ROSCOE H. HILLNKOETTER (MJ-1) NOTE: This document has been prepared as a preliminary briefing only. It should be regarded as introductory to a full operations briefing intended to follow. * * * * * * OPERATION [BLANKED] is a TOP SECRET Research and Development/ Intelligence operation responsible directly and only to the President of the United States. Operations of the project are carried out under the control of the [ BLANKED ] Group which was established by special classified executive order of President Truman on 24 September, 1947, upon recommendation by Dr. Vannevar Bush and Secretary James Forrestal. (See Attachment "A".) Members of the [ BLANKED ] Group were designated as follows: Adm. Roscoe H. Hillenkoetter Dr. Vannevar Bush Secy. James V. Forrestal* Gen. Nathan P. Twining Gen Hoyt S. Vandenberg Dr. Detlev Bronk Dr. Jerome Hunsaker Mr. Sidney W. Souers Mr. Gordon Gray Dr. Donald Menzel Gen. Robert M. Montague Dr. Lloyd V. Berkner The death of Secretary Forrestal on 22 May, 1949, created a vacancy which remained unfilled until 01 August, 1950, upon which date Gen. Walter B. Smith was designated as permanent replacement. * * * * * * * * * * * * * * * T O P S E C R E T * * * * * * * * * * * * * * * TOP SECRET / [BLANKED] _EYES ONLY_ EYES ONLY T52-EXEMPT (E) 002