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

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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

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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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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.

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Text mtertal 47 paves

Cii.ronoloeieal Sum·oary 2 pages

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Tab 3 5 par.es

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

April 19S2

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'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.

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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

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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 aeo­

url 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 atrat-

e, 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-9~31 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

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' • 'he r ... n,,.tn Hl L;)

1t•> .._.'.,'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 11i1 ~ 01 l Fl'lbruary, wtllch et.ill an !"I'> 1Jefini\.e We>.,..

"'\.bn nor (1e:.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

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·.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