REF ID:A71134 

DATE;/~.-~ 

FROM. Execut1 ve Director 

TO: G-2 Secretariat 

d ·( 

Declassified and approved for release by NSA on 05-27-2014 pursuantto E.O. 1352a 
. .. . .. 
.,-.\? I 

.SECRET / CliUl~:'l)ll.1134 RESTRICT-

:i.ASA 

DATE_ I "tfo 

Executive 0 

DrrComm Res 

Ch, Hist Umt 

Control 0 

_ Asst Chief (Staff) 

Ch, Pers Sec 

Ch, Org & Tng Sec 

Ch, Plans & Oper 

Ch, Materiel Sec 

Ch, Fiscal Sec 

Adjutant, ASA 

Ch, Sec Cont Sec __ Asst Chief (Oper) 

__ Ch, Intel Div 

Ch, Lab Br 

Ch, Machine Br 

Ch, Crypt Br 

Ch, Int Cont Br 

Ch, I & D Br. 

( ) As Discussed 

( ) As Requested 

FROM 0 FROM (10)7 _ Ch, Secunty Div (80)_ 

(11)_ _ P & 0 Staff (81)_ 

(14)_ _ Ch, Matenel Br (82)_ 

(13)_ ___ Ch, Methods Br (83)_ 

(15)_ __ Ch, Protective Br (84) _ 

(20)_ _ Ch, Maint Br (85) __ 

(21)_ __ Ch, Res & Dev Div (70)_ 

(22)_ Tech Staff (71)_ 

(23)_ Ch, C1ph & Ciph Br (72)_ __ 

(24)_ Ch, Int Eqmp Br (73) __ 

(25)_ Ch, Elec & Elec Br (74)_ 

(26)__ Ch, Lab Serv Br (75) __ 

(27)__ Ch, C'logic Br (76) _ 

(60)__ Ch, Pers & Tng Br (61) __ _ 

(90)_ __Ch, Supply Br (62) __ 

(91)_ __Co, Arlington Hall (40) __ 

(92)_ _2d Sig Serv Bn (50)_ 

(93)_ 

(94)_ 

(95)_ 

( ) Information & Fi.le 

( ) Recommendat10n 

( ) Concurrence or Comments 

( ) Information & Forwarding 

( ) Information & Return 

( ) Signature 1f approved 

( ) Your action by 

( ) Info upon which to base reply 

. 

~ ---- ·--

_____ u~~\-.. ~\ Ptuct- ' - ---------

~-- _' -~· ~ '!M..:a.J~A._ 

J_~. 

~-----------0~------- -~--=~~------~-- --

WDGSS FORM NO 96 (Rev 10) 2 APR 46 40374 
- c ~ 1:!1: lA\.J.l :i. =? 4 RESTRICT 

TO/ 

-~-Chiiefef., ASA 

Executive 0 

DATE J 'Y" c~ "f'b 

FROM T FROM 

Dir Comm.Res 

Ch, HJSt Umt 

Control 0 _ Asst Chief (St.aff) 

Ch, Pers Sec 

Ch, Org & Tng Sec 

Ch, Plans & Oper 

Ch, Materiel See 

Ch, Fiscal Sec 

AdJutant, ASA 

Ch, Sec Cont Sec 

_ Asst Chief {Oper) 

_ Ch, Intel Div 

Ch, Lab Br 

Ch, Machine Br 

_ Ch, Crypt Br 

_ Ch, Int Cont Br 

_ Ch,I&DBr 

{ ) As DlBCussed 

{ ) As Requested 

(10)_ 

(11) 

(14)_ 

(18)_ 

(15) _ 

(20)_ 

(21)_ 

(22)_ 

{23)_ 

(24)_ 

(25)_ 

(26)_ 

(27)_ 

(60) _ 

(90)_ 

(91)_ 

(92)_ 

(93)_ 

(94)_ 

(95)_ 

{ ) Concurrence or Comments 

{ ) Information & Forwarding 

{ ) Information & Return • 

Ch, Secunty Div (80)_ 

P & 0 St.aff (81)_ 

Ch, Materiel Br (82)_ 

_ Ch, Methods Br (88)_ 

_ Ch, Protective Br (84)_ 

_ Ch, Maint Br (85)_ 

_ Ch, Res & Dev Div {70)_ 

Tech Staff {71)_ 

Ch, C1ph & C1ph Br {72)_ 

Ch, Int Eqwp Br {78)_ 

Ch, Elec & Elec Br (74)_ 

Ch, Lab Serv Br (75)_ 

Ch, C'logic Br {76)_ 

Ch, Pers & Tng Br {61)_ 

_Ch, Supply Br (62)_ 

_Co, Arllngton Hall (40)_ 

_2d Sig Serv Bn {50)_ 

( ) Information & File 

( ) Recommendation 

( } Signature if approved 

( ) Your acbon by 

( ) Info upon whICh to base reply 

.. 

A TENTION 

2 

' 

RB ID:A71134 

WAR DEPARTM!IT GENERAL STAFF 

MO ROUT I NG SLIP 

1"fr71~· ~ 

5 

REMARKS/.# 

//~ 

tfllr7~...,,1 a ~. ,.,. 

I 

-~~ 

°!- ~i<r(r· 

OFFICE 

ROOM 

ID-84008-10011 
u u ~ -

1 ~ 1~ 1 1 1 r .. ~ ~ ~ ~ I I 

--tr.tt-tttii~--:"~~~-'f+-~ '::"! .r-: ' REF ID : A 711 ~- ' , 1n ,. :1 -'W 

::::!)l..'!:;;:i ·~ ' 

ose o you w o nave followed with more than casual interest the 

sensational disclosures made 1n the course of long, protracted hearings 

of the Joint Congressional Committee on the Investigation of the Pearl 

Harbor Attack will recall that time and again "Magic" was mentioned. 

For example, on page 79 of the Majority Report of that Committee, published on 20 July 1946, you'll find this statement: 

INTELLIGENCE AVAILABLE IN WASHINGTON 

THE "MAGIC II 

"With the exercise of the greatest ingenuity and 

utmost resourcefulness, regarded by the committee as meriting 

the highest commendation, the War and Navy Departments collaborated in breaking the Japanese diplomatic codes. Through the exploitation of intercepted and decoded messages between - Japan and her diplomatic establishments, the so-called Magic, 

a wealth of intelligence concerning the purposes or the 

Japanese was available in Washington." 

and again, on page 232: 

11 ••• all witnesses familiar with Magic material 

throughout .the war have testified that it contributed enormously to the defeat of the enemy, greatly shortened the 

war, and saved many thousands or lives." 

I'd like to recall to you in their own words what some of these witnesses actually said, but there isn't time. However, I'm sure you kn.ow 

that among these witnesses were some or the foremost men or our day--

top ranking officers in the Army, Navy, and State Department, and therefore their testimony bears fireat weight. They all knew the value of this 

mysterious material, "Magic • 'What these officers could say in an open bearing was, of course, quite limited, so let me read to you what the 

Secretary of State said in a memorandum dated 3 January 1944 to the AC 

of S, G-2, regarding the value of "Magic": 

"The Department has found this material valuable at 

all times, -and vital in a number of highly important situations. 

It would appear that information of this kind, and its analysis, will be even more vital in the future than in the past, both 

during the period of actual hostilities, and for a considerable 

period or time (which cannot now be estimated) after the hostilities may be concluded. This material is of great value in 

determining the facts on which policy must be formulated or 

action taken." ... 

Coming a bit closer to home authorities, I will quote what Major :! 

General Chamberl_ain, who tlutoughout the war in the Pacific was-... G-) -ori I ' 

General MacArthur's staff and who is the present Director of Intelligence,:· 

recently stated: : , 

1

l I 

H 

-::e::.. ---
,. 

r 't ( 

.. 

.. ., , 

·- . '{ l' , .. 

.... ' \ T . 

.. --, 

I 

1 f ( .. 

.. ' J, 

") 

I 1 j 

I 'f f 

J 

~ . .. 

• 

J ~ -

I ~ ~ I 

.. t- ?.1 I 

r 

I 

t • 

I I,. 

j' 

I-. 

• '"1 • 

.... 

~ ' 

I 

~ 

I I 

•• 

'\ 

.. .! 

I I 

~ 

~ I 

I 

. ,,. ~ 

REF I:f>:A71134 

• I 

, ...... 

r 

JJ 

.. J Y" 

.J I 

~. 

I 

'J , 

-... r- J. ... .. 

I• j 

... ' ... t J 

r .. 

e 

t 

( 

• • 

I I 

.. .. -.. , . I l 

} I 

-......... .. 

e 

·'' 

I -

r .. ! , ... 

I " I 

-~ .. 

I ' " 

,. 

I i ,, 

... 

~ 

•f 

__ ....,_ • ---

, 
\ 

WAR DEPARTMENT 

MILITARY INTELLIGENCE SERVICE 

WASHINGTON 25, D C 

OFFICIAL BUSINESS 

REF ID:A71134 

PENALTY FOR PRIVATE USE TO AVOID 

PAYMENT OF POSTAGE, $300,