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Declassified and approved for release by NSA on 11-08-2013 pursuant to E. 0. 1352B 

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TO;• -~ C;,f r 

S'"'CL Rlt1:£M-DRi1ATIO~' 

ARMY SECURITY AGENCY 

WA$HINGTO ... 25. D. e. 

GA~2~ 314. 7 

9UBJECT: H!stor1cal Study. 

TC: Director 

Armed Forces Security APency 

The Pentagon Washington 25, D. c. 

ATTN: AFSA-14 

_!llg 52:?054 ' .. 

Attached study prepared tn the Historical Sect1on, G2, 

Army Security Agency and entitled The Colmar Compromise is 

forwarded for reference and file. 

FOP. THE CHIEF, ARMY SECURJTY AGENCY 

l rncl. 

Cy #3 of l'he 

Colmar Ccmnromise. l •' 

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19P S C .ET 

;1F: a "'.''12 

1~: Director 

Araed Porcea ~urt t1 AF•ncy 

'!'he Pentagon 

Wa•h1~ton 2~, D. C. 

AT'l'I: AP~-1 l 

Attached atlld7 prepared tn the Histortcal !ectlon, · An.1 :secu:rtt)' Agency and entitled T11e coi.ar Ca.prOllhe 

fnrvarded ror retn•ce and rue. 

1 Incl. 

CJ 13 or ft!• 

Co 111&r Co.pp<* he. .!Ch p \•, ~ r , 

UPTAI' ti~_ 

.~S~T ftQ J G. N 

reP s_-pser .. . . . . ~ ."::.; .. - :' - ~ .... ~ Tl.:;.\: ... · 

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Text mtertal 47 paves 

Cii.ronoloeieal Sum·oary 2 pages 

".'ab 2 1 pares 

Tab 3 5 par.es 

----.. -

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J 

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-~ ., 
~··d under..-. Dl.rectloa ot 1M 

ch:iet 1 d!llf S'ICW!Tr A<JllCT 

April 19S2 

t:l.5-22 
...... , 

·. ~. ·:.; :~~·:::'..~:~. 

'118 hi•torte'll a '.itd:r, d11 ... une wi •.h the Colur Collpromae in rz.•·t A • 

. i:i 191.1. outlinH .tha neri•mey 'lleuul'9• whtct1 m.at ~ Lak9\ wheo _tli.. 

of' 1110r!t inTolved i 'l rep'La.c-4.n~ theae syat.... l"urtbe?', 1 t r..,..i,. tb9 

larf"e m.abG'I or pu nwnnel involnd in neb a CO .. ll'OlibG n-o. enJtu.4. 

Mn to •.heatsr c011t.-ndere, Md ~ui&• t~e ~raTe s:lt.nat1ona . . in 1Jilioa,;;.,.~ -:;; . ~ ~ ....• :. ~ '~, .... ,. 

all eoo~ed fi."lti thelaNbN. Renee, t.t !'l"O'YiA• .. bport•i ol'i•~~--;~ '..,.._.-r .. 

tor pu•s«it,..1111 G011.Ucat.\.On teeuri:if ~u... lb• 1ncicla\.- i *f;tlJ' 

-.. ini-1rnt.r1-.nit ~ .•-..-. -. u. • wu hie· •0•1. ~·· . . . . 

·a. •If-.• wq. Yr'Ut.M\ to ~ Cbaptier m in the l!llmlHJ"ip\ hta~( ···: 

·or Connrt• ~l)b-C (A.~A\6-l, Oil' 5It'.llnt ), a teeh·11cal ~· ~-;~;>:;,,'. 

of d1.Hiailarity md •r>Mial lnt.areat_. t.M QQlllJPO.S..• ·~iii 11..-· 

r1epR.rat• riietributioo. 

lS A.pril 1"2 

·~ '' 

• i :· steRET 

T 
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.. ;.~~ • • z..edinP,£C1 ~.en •. 

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::~p.e~ : ; . ' '~ .. .,. Jn"°l.v.d· 

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-~~'~t.-. tp.titu-W ' ' .~: ~('''.- -: .. 

-.r~• ,,~e P.ror,ru .• 

• 

• 

• 

• 

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• 

.. • • 

• • • ··: 

... • • 

He crypto-11'..q\\ip!M.llt Fo\1¥1 • • • • • • • 

I. 

J. IWaliiaU.an of'.· Ia'ftlatir;at.iona ~t. in 

Court Varrti.al 

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h 

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17 

20 

2S 

29 

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4.4 
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of 

l'l'til~;~l\'~~ - l through 9 . . .,.,., . ' 

S!~,a.. ~•Jl.b-76, ~11tent:8 and condttioa or 

c-mtm:to · ' " 

Co'V.1i tttttUl. ~" 262.1 h9li, and the 

teasiJt<>a'bilf of- :th• 6rt1081'11 and •en .. involved in ;the COllPl'Oid.M 

Charges arid addi ti.on.al t.eotiMnials 

llepaFtaient of the •r111r, otnee of the 

geel"•ta.ry of Any: r.tr, dated 16 ~•pt 1948, 

to Ir. ·r«nor.e !Ac'Taclten trom Mr. Henry J. 

Sollln\er 
~l' -·i!--f ~ 

~' /<~_: .. ~ ,. 

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·:--

In a:n .•• o.f ~!le carefully worked out 'lea.-uree oonoeming the pb;rsical 

eecur!.t:r of the a..-134-C ('rr()\Bl), and the hich der.ree of cryptographic aeourl tr os~11bllehed for it1 a vsry een:ma coaiproalse of ~nrr aid r.otatrt.n.d 

Cr :μto-::: •~1ie :;ya teun a."ld 111.11. erl.Rb ')Ccurnd at a !)1 v111oa Readql.!artm-1 in 

F.urope late 1n llorl.d ':'f!U" II. 

ijoadquarter1, OO!llOW'licationa Zone, no, (Paria, Fnooe~, d:hpatched 

an :Jrru"\~;ecret 2su.ee on f\IMC!q, 6 1•~ 1916 at 2~, to all atrate, ic oo-. ~~s 1."'l :::urope, i.ntor-1.ne: their 81,,ial of.t'loer• \o eu.pend etrl'tain 

e;ret.enw due to a ooilsibl.e ouuproid.••• l'he ll'ar nepartaMi• NHLm • into 

l 

eopy ot thifl tll'Jl!N.&9 •10. llX-9~3 1 and b1 dlb9, 7 P'ebruarf 1 U-llnr,too Hall 

ofr!.<'i.ala hac read the t'ollowtng coaimunicat1on1 

HUpend u&9 1m:lidiat•l;r at edt.Mom U md 19 et. ..,.i.. 22011 

2222 and 22h2, -.di.tiona 10 and 11 ot Cr.BP o12S ad 0126 ..a 

ed1 Uon 2 ot .,. .. su. 

Orne poes1Mllt;;r ot ~all Mnt.ioned ex1.8u, all c... 

!Uli.\ .. tl t.o> be ~ .ntor..t Gt posaibl u. '7 ct eoeipiberat \ratn.e na 

radio in abO'n •J8t.-. be!.nr. Ned 'Iii' -.... a..el'ft .,..._ now 

be1ne dia1u'iwt.ct. 

lM onl;r HOm'9 l&D!O.iae, co111"1.•, er reHrYiJ ..,.t.u 11hc-e .. vailable atM.l _..._, "9111_..a.,. •~•1M.-l2., 1). 14, 1$ -i! 11 

not atfeotod u 'All as CCBP 0101.,. 0102 md Olll b7 &bone Ia- . 

form all abord1naile mi'•· .......... · · 

1. !n!'·) CO!'"?' to S''"!C - Code lett•ft tor -.rlinr,ton Hall staUon 
• 

' • 

'he r ... n,,.tn Hl L;) 1

t•> .._.'.,'4~-w ·rJo. ('')ll":JJn•· ='l'll, • ..,., OQ 

'>h• '/th aer"" rtoe•h•-:· a . • rlin ~o 1 Rall. 

10. ' •: 95681, ll~Z ··! .. , ~ 

llH of · n~ Ol22 '-1) auepenJed iawdh~.ely due •WJPMt.ed 

c r>!Apl'"Jlli&•. • '° •'r .air1 f'l-<)!11 aubor<'i na • e hfl ldere unc<f!I' :rour 

juriadtct.i:>n and i:l!l'lr.1 thlt• hMtiquari.era erirlies t»fftble 

I.> pu':. edit.i·>n ~-16 i.n!,.., .. rrec:.. 

io. 1. • 957491 1900.. ·. ·:1 · 

rirtnr ht? efft'ICt. illnf!:iiat ... l;r l"r~r :nn-11 tor intra• 

tH:rY104t ';. ~; • ~ l"IQ' uae only as ~ mpor1try --.euN. , !.• ".r1.-

but. ion now bein• 111ari• in i\r'!Q' t.roun" r 'lrcea tor i1111ue to 

1HT1.ei1ina. rrou:id rorc• iviisio:tt Will cot1Ml!'lcf' 1111r •• 

uoon aa :oc~t. avail&bl•·· r:round l'orc• •livisicms wi.ll 

h)ld ~~JI' 01)1 until no!".IW.l myat.a. an. eecurity r .. ~ore-1. 

~ fourth ·.eaaar•, 'lo. -v 96'412 Md been receiftd a'. t.he V ~par\;uf!Q\ 

arid 1ubHq,umt.ly b.r 11i ~ 01 l Fl'lbruary, wtllch et.ill an !"I'> 1Jefini\.e We>.,.. 

"'\.bn nor (

1

e:.a1.lA c:>nc 1•nir1 the c >11pr-:>iaiaei. It. wu 'lO~ i.sit.11 10 F•\lru.u7 

at 2'#:1, wbtll I.he :>fticer b ctiarr.e of \he 'l'far Tlepart.iaen~ ".ode Centel' oall .. 

r ,10.iel rl nt.on 9e Uleopp, r-ht.ef, Securl t.J "i vit>Lon, 01q, to t.ell bi• t.bat. 

an •·.x·.r-ely illpol'ta.'lt ,.. •• .,., 'h• 9692·1.3 ooncwninr :.he OOllPMlli.M had 

r•nd ae tollowat 

'1Uit~ t.NClc beloni'in t.o tM? e!.cbt inta·itry rli.Yiaion con-

-.ainin" f'.>llCllWin". ~t.• at.:>l•n in ro1-r trr&"lc•1 c;rr.a~, 

2. J\l'...t-:Oinr. .. &&;·• 'lo. f-:,1 960til, 8 P'eb as, fro. rq • .-oe17.009 1945~, !1"lt . 

.l'.!Nlll:'• 11?.Aed ~· .. ttnhonr, reed u tollon1 1oW ••;>tiCt.cd caeproalMd 

c:; rr: F,Sr-) ...,-_.•1107 dia~r1buHOll 1n pl'0<'"91 t.n al\ effor'. ~ "> lllllke 12 

1"flbruary dat.w tor e<ht.ion h PoMible. •1otuy all h'>l<'era c:>acOl'!'M'<1. 

l. ·1.Jt.;?1n • :.ecr"t ieoaa ·• ·o. •x 96921, lO feb uS, l'/lff7., r!"u1 "<t• ... ~ 

on•, IU'',PM.'l .'hN':.· r of ·iptta -.i.ona, u~.·, 'arla, · rin~. 

J etf.411. INFORM!\ rL ll 
• 

·.11e 'ft.h wer ... reoeiTtt<l a. "rlin l.0:1 Rall. 

·10. 1 '!. 95681, l8@2Z •:t('~ I' 

UH or ·-r-~ 0122 '-1~ ouapen'1ed i~ta;;el.J due suspect.ed 

crl~rO!ld.ae. ~ scrr .ain t'rom auoo!'f~foa ,e h.:>ldera im~w yolll" 

juriadict.bn and inf'>l'!l\ 7..h1P hea<iquar•,era e'1.l'l1e• . pl41a1.ble 

1.-, pui; edit.too 1.-16 in~'.l .-ffec:.. 

'°· :./ 9S749, 1900'." VR -

Rl"inr i:'lt., efrect ianed!a':.t-ly r-r.~ Jlll-11 tor intl'asemc• Ue Se •r'lllJ WM only as "•tllpOrar.Y 9N811Ne l'iar.1'1-

0-.1t.ion now beilu- •d• in ~~ Groun" F-,rcea tor iaeue 1lo 

,, i rte ions. C'.rou.'\d Force · ivieio:u: 1'1. ll C09*1Ce uae H 

ooon u doc~ anilabl~. r.rouod T'ol'C• divisions will 

hild C"!!P 01)1 mt.il normal 819t.en m~ eeeurity r .. ::.ored. 

A !'ourth ... ..,..,... lo. --y 9&>412 h.ct been receiftd a<; t.he ".ar T'eparuf!ll\ 

&'1d aubeequl!flt.ly by At1S 01 i3 Febl'U&l"1, which st.ill •••• no definit.e Wol"!ll-

"\.i Xl [)Or c'e~ai.la cone• inin the CJlllPl'Olli.ae. It wu no~ l.Wltil 10 F•bruarT 

at 2~, when t.he ::>fticer i:l chary,e or \he ?Jar nepan.iaen~ <"'.ode Center called 

r.,lo.iel rl'nton "'· a.ll8opp, rhtet, r.ecur11f7 ''.ivilllon, um, tot.ell bi• t.bat. 

) 

an •·xo;.rne~ important. -.aare, 'l'>• 96921 conclll'ninr t.h• OOllPl'Oll1.M bad 

j1111t. b9en i·ec•1Ted1 did A'f" off'toial• become co,:nt.smt ot \be t..:t. t.hat. t.h• 

c:: · ~.ry. itaelt and rot.or buke":.•1 ~rr~vr and SHIA !Uc wf'N loet. :'he lllOSM··• 

reed aa tollowat 

?I.rited tl'QCk ti.lonrin. t'l t.W'J ·-=-~ht. L'l£ant.1'7 lii.Tlal:Jn CO'.lo-

·.a.1.nin1t followin": 1oc1ment.S st.:>1.a in rot..r '!"ra.ricez ~Tr.A~. 

2. Ju:.t:oitlr •as•r• ·10. r: 96041, 8 Ji'eb laS, trom !'q. l"om'/.one 191.5~, 1bok 

.,saa;.·• ai .. -:ned 1.; Jl!l:ihowflr, rud u follCJ1nS1 -.OW aua:J.ctcd compi'Ollla•d 

c:rr r.sr·.3 ...,._.icy di•~PibuUon in pro·l"M• in an effort :;., lllU• l2 

~ebruary dat.w for ed1t.ion h poa•ible. ·iott.ty all h'>l.!era c.1oonl"nf'<'. 

3. 1.it;-1>1n ~ :~ecrl"t leosa -e ·o. ""I 96921, 10 Feb 45, 1"'4'17.1 f~.11 "q. "'~ 

one, . LU">pMn .'ha~ .. I' t>f ·ip~ ·,i.on81 Uf'.• I '&l'ta, • r'!t'ICflo