WAR DEPARTMENT 

ARMY SERVICE FORCES 

TO Dir!irnt2z:, Ccn::!Dllnica:tj cos Reaea:ccb 

(Senice, dlY!llion, or orpnlzaClon) 

(Brulcll or llDiQ 

lnitblo n_ ... _ 

(1-llom) 

(AHenUon) 

Subject: Memorandum - B II Personnel Reguirements 

l'lleNo. 

I (Wri&er'a last name) 

FROM 

<Service, dl.,lslon, ar Ol'llllnlzation) 

1. for your information and file. 

Encl. 

1. ~eino - 16 Dec. 1944 

W. D., A. G. 0. l!'orm No. 0105 

March 'n, 1943 

18 December 12~ (Da&e) 

-

(LoQtlon) (Telephone m:teDaloll) 

s. 'Kullback 

Lt. Colonel, ~ignal Corps 

SPSIB-2, SXT 321 

I 

/ 1.£./ 

eclassified and approved for 

elease by NSA on 04-07-2014 

ursuantto E .0. 13526 
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lomorandum 1 B lI Por•oim.•1 Requirement• 

1~ %ti• bellevea opport'Q.11• to 4i1cu1a h•r•in.thtt prob• 1 ... tbat confront :e II,, with their conaequent per•mm•l d. ... nd.•, in order tlUlt the P•r•onn•l Control CGnm1tte• •1 -g~~•oi•t• 'Vhr it 1• neceaaarr not anl7 thet the 18 o1T111ene 

•r 41•cu••ion in Action 1 be permanentl1 •••1gn•d to B II 

but •leo_yl\7 tt 1• n•o••••rJ that the per•mm.•l allotment to 

9 II be till•~ •• eoon •• po••lb1•. Much ot vlwt tollova ia t~obeblJ lrnovn bJ th• Pereonnel Control Camm1tt•• but 1• 

111.olud.•4 tor the ••k• ot oompleten•••· 

f. !be toll owing pr1nc1pl•• and policJ vbicb gu14• the 

ft,Otl'lticm• ot B II J1U•t be eon114•re4 1n vtn ot the peraon- .-1 re4ui'l'ementa inherent therein. 

1. !he 88.1 baa 'been 41reoted bJ competent higher autborit1 ·to procea1 all s.nte:roepted Jepan••• Arm.1 end .Air 

rorc• trettio. 

· b, It 1• the •• tabli•h•d po11c7 ot the Comman4ing Ott1o•r, that th• 8!& b• the leader an4 th• 41r•ot1ng eenter 

&fl.4 oon~rol •1•1101 ror the ••rtaua .American and Br1t1•h 

oe:ntera engaged on th• Japan••• Arm1 Oo4• P:roblem. 

o. !he material with vbioh B %1'. mu.at oanoern it-

••1t i• ver1 p•ri•hable. Intormation about the Japan••• fore•• intention• .. operattona •n4 •hipping mu.at be CUl"l'ent 

it it !a· to be or ••lu• end worth the •ftort n•c••••r1 to 

4eriv• it. !he 1.n••tillabl• ••lue of •uoh current tntorme• 

t1on to the operation• ot the Am•r1can Jl'orc•• apin•t the 

·Jepan••• ba• been emplJ' d.em.on•trated. 'l'b• p:r•••ure tram 

f .. i j•l\!ect b.l__ a temporar1 atoppege ot Clll'rent 1ntorm.et1on 

"f"or amemonlha liuoliti~in.t to l .A'dguat 19-Ji. 4ue to 'Y8l'10UI 

OlWq•• 1ntrod.uoe4 'b7 the Japan••• and th• extra•• to ~ch it ve• their 4••1n t~ 10 to get data to 4•r1T• auoh ~iutoJ:'Dl8tton, 1• a 4etizdte indication ot the Yalu• of our 

•tto:rta a.114 the 1ertou• conaequenoe1 ot d•laJ 1D th• •»•iit\io.u~~ - - -- - - -

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_ J.- A Y•'t'J large number ot people an4 much equipment 

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ta inTOlTed ln. the iziteroepticm forwar41bg an4 proceaa- ~ ot lepen••• .lrm7 !rattle. VntortU1111t•l7, the exact tt~•• er• not •v•ilable to the writer thougb the P•r•an.-

JUtl Control Committee can ••o•rt•in them. lfhi• ;p•r•onn•l i• •preaa OTer th• tac• ot the earth end et the 88' include• 

UnJ I! Branch p•r•ann•l, moat of O Br•noh,. moat ot B I. all 

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11-!-U' iloat of I' 1V, iaoat o"f Y & t. an.4 a 1irs• •t:"iff- tn 

G-2. 1t im•t b• potnt•4 out that the ezpenae an4 peraon- Ul1 lnvo1Yi4 in s•tt1Dg the tratt1c are Yll•t•4 it B II 

Amiot aucceettul.17 •olve and proaeaa the uter1a1. Ko•t 

at the ~ration• or O Bl'anch,, B I, I 6 L and men7 peraan- n•l 1n G·2 are 4•t1n1t•l7 dependent an the •ucc•••:tul 

lolution •nd proc•aa1ng ot th• tratt1o b7 B II. 

Ji.. It must al•o be pointed out that the n.ature and 

41rection of B II Operation• and problem• cannot be planned. 

tor long in adYence nor •nt1cipated, •inc• the Japaneae l'•tu•e to make cbangea 1n their orntograpbtc materiel• 

alid pi-oc$4urea to •u1t our convenience and peraonnel. We 

irtU&t b• prepa:rae4 to 4•t•n.d at no 1Q8tte:r Ybllt po1nt the 

lapan••• attack erJPtographtcall7. 

5. •· Since 1 Auguat 19~4. beceuae of a var1et7 ot 

ohangea and new proce4u:rea 1n.troduced b7 the Japan••• ind •d41t1anal commitment• Yhicb B II hlla been directed to 

u.ndertalte 1t ha• become aecee&aX'J" to proceaa aor• t:rarr1c 

:\t1th nev Additional proc••••• and procedure•. Ind••d~ the 

1ateet •d41t1cmel atep 'Vill take place on •nd •tter 

16 December 194-. Let me repeat not on.17 auat aore tratttc 

be pl'oc••••d, but more proceeatng atepa muat be pertormed. Ev~n it there had been J:a.O 1».creeae 1n trattic to proceaa, it v~4 •till have required aore per~oxmel tor ~c•••1ng. 

___ b. A recent oammitment vhich B II baa been 

41recte4 to undertake 1• the Japan••• .Air Poro• Problem • 

.At F.••at th•l'• are Jt.o people "11&•&•4 cm. th1• JU'oblem 

ffhtoh need• -00 1D order to aattet7 the.4emand• ot G-2 and 

meet the ocmm1tment ot the BSA. · 

o.-- A oOm:mitment vhlah· the 3apaneae ha~• torce4 

B ix to undertake 1• the ct1ac:r1m1nant problem. !'he procedv• ot b.olpherlng d1•or1DL1nanta# introduced bJ the 

lepen••• on 1 Auguat l.9.\ll. !ul• 111\poaed aeveral burden• on 

l)_ I,l. In the t1l'•t place, per•ODl1•l l:uld to b• trained and 

4lvertia to aolv• •1'.ld zieoover the k•J• uaed to •cipher th• 

4i•crim1nant. In a4dtt1o.n, •••r1 bit or ti-attic coming 1n 

had to be proce••ed to th• extent, •t l•a•t ot deciphering the 41•crim1nent 111 order to aegregate tratt1c by •1•t•m. 

a ,o.ecaa11r7 :Pl'•11mlnarJ to aolut1on. !'hi• ha• ebaorbed 

tile eervtcea ot 163 peraonnel •inc• l A'Ug11•t 19•4. •am•- ~lns vhtoh could not have b•en tor••••n until ve learned 

a'bOu.t thi• change .. 

_ - 6.- •. At th1• point :Lt might be ot interest to 

J,eacribe atatiatioallJ the demand• ot th• problems, Ju•t •• 

it ~·~ ~xp!8lni4 to Yartoua renk1.ng Oft1oere ot the Var · .. ~ 

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15.tRirt~inf; in. oi'a~r to gat; apPf'OVll f ~r in lnoreawe in ~e f/O ot the SSA. 

'b. On an--•••1'•8• ot •T•17 tvo mon.tha there mu.at be 

J'9C0'98l'ec1. 

1. 50,000 ke1• in the Yater Tran1port •1•tem - rand.om. number book. 

2. 100.000 ka7• 1n two ac!minlatrative •1•t•• 

'andom. nuinber book•. 

'· 100.000 ke7a in the Air Force ~•ndom .D;'Wl!ber book. 

Jt.. 50,,000 ite7• 1n the .Addrea1 ra.l'1401ll nlllll'ber bo~. . 

5. 10.000 1ce7a in the diacrf.minant "-Udom 

uo:dlber boolc. - ~ - ---

fhi• mean• a total ot '10.000 new ke1• introduced evel'J' 

two monthe. ltnce a ke7 recoverer recovera an average ot 15 

1£91• pe~ 4•1 ve have ever7 tvo mantha e •ork load of 201667 

maii d.ll71 tor r•co1'erer• •lane. It we •••ume that we v1 1 

telce 60 da7a to recover the k•J• then )-5 k•7 recoverer• -•lone•~• neoeaear7. Secauae or daJ• ott! etc., to l:lave '~5 k•7 ~eodttrijfl• ettect1ve for 60 487• ~•tu re• that there be 

It least -02 ke1 recoverer•. But tor everJ k•7 recoverer 

there are nece11ar1 ~ othor people tor reaearch, adm1A1atr•-

tlan and proo•••1ns· Ccm•equentl71 tbe requirement 1• '02 

plua 1608 or 2010. . 

--_ - c. It llUJlt be rema:rtked here that the•• tlgu.r•• •I'• l>iie~ on • m.aslnrum po••1ble utilisation ot 11echllntcal •14• 

lOi l•rs.e volume production. 

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-\U11t•- ot be laPf!!n••• .&NJ or D1Y1•1cmal or •'111Talent level 

"Ind ld.gher in e44ltton to reconatruct1Dg the nec••••17 data. 

•· Jtlpt nov we bave thou•end.a ot me•••t•• tn atr 

force •1•t9Dl8 Vb1ch could be read. Lack or •utt olent per- •onn.el • the onlJ reeeon tor the 1ntormat1on contained 

therein .not be!.ng JD1Jde •••11.ebl•. . - - - --

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. •· It m.ight be augested that the intercepted. tratt o be lt.m1ted to vbet the avetleble ptJraannel can -~oee11 and ~creaae tbe tratttc .U.7 •• pe~ac:mnel become• 

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•vailable. Vntortunatel71 the l•pane•• r•tu•• to cooperate Yith ua to thi• extent. D1nce l Augu.•t tb.•7 bave cbllng•d oon:vera1on aquel'."elll •••r1 :r1 we de7• 1 • • oompared to once 

•••r1 20 d•J• prior to 1 .August. con••quent11. flour tim•• 

aimU.eh traffic 1• needed it we er• to oontinue to get •• 

much date tor 1quare x-ecov•:t'J' •• before. 

~. 9!he enc1pherment ~ the di11orim1nant Ulling an 

8-dtgtt control which meana ioo,000,000 po••1bil1t1•• or 

10 000 times •• 11Uch •• previou1111, m•ana tbat a verr large 1qtum.e ot tratt1e muat be •~•1lable tor th• •ol~t1on ot the 

(ll10Z.1m.f.ii8ii£il 'fhich tt muet be repeated, 1• an ab•olute ~i!~~!~t1 if !he meailagea Ir• to be read. ConaequentlJ"- eaoh 

.nd •v~~7 a~a11eb~~ ·~•••1• must be proceaaed. 

_8. -The current cl'Jlitograi>blc ·trend DJ the 1apaneae 

to the- uae ot Latin •quar•• •nd enciphered d1•crim1nent ~~-~il: jiie~il tba~ the reconatruct1on of auch 41•c:r1m:lnent 

ifi1iltD 9111 be -.er7 a.1:tticult it not 1Jllpoea1ble.. But auch ·~~·• •~• abaolutel'J neceaaery it the 41•cr1mtnanta are t9~b~ ~eoiphered the Yer1oua •1ateaa eeparated and the t.r•tt~c reaC,.. e!n.ce the Japan••• teitd to ••nd con•14•r•ble 

or1ptograpb10 intormitton 1nclud1ng aquer•• :l.D. their 

-trett1c1 1t 1• oonaequenti7 ot prime Saport•nce that oontin.-

({£7 T>e mitintatned and that •ll •J'•tem• be •tud1•4 •nd proe'ine-a. !'he net r•ault or the ohlns•• introduced b7 

the Jepaneae i• then that ve mu•t proc••• aor• tratfic v1th 

man) •44itional p~ocedure• and vork Y1th it all if ve are - to r~ad an7 of' 1t. 

9. ~he 18 civilian qplo1••• rocentl7 J1U1d• available 

to help clean up •D accumulated backlog ot tratt1o proc••- atng,. ill addition to thoae B II peraonnel that 11111 b• 

:made •v•tlable bJ the tact that 30 et>.lletoo. men at Vint 

H1ll il'nd 25 VAO • • trom 0 Branch have been made tap~arll7 

•~•1lable tor trattic proce••1ng 11111 more than be 

ebeo1''be4 b7 the •dditiOlUll atep 1fb1ch 'lllll&t be done an all 

treftic (•n average ot '85.000 per month) an and •tter 

16 J>eceniber. . 

10. flih• B Il: training program '4lich ha• trained and 

l:Ltlpe4 absorb more than a thou1and people 1n apec1al1sed Jobe 1a prepared to oontinue to 4o ao tor all personnel that will be made •Y•1lable. 

11. &hould the thl'eed of oonttnu1t7 get broken because 

of 1Aauttic1ent peraaun•l to proe••• and reed the tref'tic 

and a bact~g torm it will ~e•ult in a eeaaation ot the 

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~i'"ajdy ot v~1uable futormation to G~2. !he vel.ue of the 

Rl\U\• l• •v1.dence4 b7 the approval g1ven 'b7 ua.d the 1nter- ••t 4t•pl•J94 b7 the ranking ofttc1•l• ot the War Department Who bave reviewed our aot1vlt1••· 

a,!. !o •ummartze1 !he cmange1 introduced. 'b1 the 

lapeD.eae and the trend ot their procedure 1• •uch that a 1~eater TOll,llllo ot trartic muat be proceaaed Yith more opera- tions and :reed 1.1ZJ.der greater 41tticult7. If' eutt1o1ent per- acnnei •r• riot ude •Y•1labl• to maintain • r•aul•r flow of p~oc•l•iJ:ag and reading then •11 ettort •xpen4ea 9111 be u••-

leaa 1D tliat the meter1•1 VS.ll either be Slnpoaatble to read ~ iee!eble Yhen the 1Dfol"ID8tton v111 'be ot not much T•lv.e. 

Btlt:va'J measure• vill not autt1oe. Ve haY• pr081'••••4 too 

tar ·to allow "too little and too lete 8 to.atop ue. . . 

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e. IULLBAClt ~t. Col, Signal Corpe l:PSlB-ll ht. ,21 

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