Input:
"
Here is some messy data parsed from a pdf. These files may contain redacted information.
Using a json format, ouput the who, what, when, and where of the document, and required security clearence
Use the following json format:
{"Who": "key names or groups", "What": "keywords or ideas from document", "When": "day/month/year", "Where": ["referenced locations"], "Security Clearance": "CONFIDENTIAL, SECRET, or TOP SECRET"
} Text: # Doc ID: 6637225 Doc Ref ID: A6637224

J/O/STY/R.42-68

3/0/STY /R42-68

SECUR 18 Feb 68 20002

DIST: 18 Feb o/ur68 2000Z

DIST:SIGSUM 42

SEA 0/UT

SEA SIGSUM 42

UNITED STATES OF AMERICA

SOUTHEAST ASIA

SIGINT SUMMARY

THIS DOCUMENT CONTAINS CODEWORD MATERIAL

THIS DOCUMENT CONTAINS CODEWORD MATERIAL

Declassified and Approved for Release by NSA on 10-22-2018 pursuant to E.O. 13526
---
# Doc ID: 6637225

# Doc Ref ID: A6637224

LTOpSECRET FRHE

TOP i~CR~T TRINE

INon - Non Responsive
Respons i ve

DIST: 18Feb682000z

3 /0 / STY /R42-68

18 Feb 0/ur

3 /o / STY /R42-6868 200oz

DIST: O/UT

NATIONAL SECURITY AGENCY

NATIONAL ASIASIGINT SUMMARY SECURITY AGENCY

SOUTHEAST ASIA

SOUTHEAST SIGINT SUMMARY

This report summarizes developments noted throughout Asia information in this report of publication on throughout available to summarizes This report NSA at time of developments based entirely 18 February 1968 noteds Southeast

All available to NSA at time is publication entirely on SIGINT on 18 on February except 1968

where otherwise All information specifically indicated in this report is based SIGINT except where otherwise specifically indicated.

# CONTENTS

|Situation Summary|PAGE|
|---|---|
|Communist Southeast Asia|1|
|Military| |
|Vietnamese Communist Communications| |
|South Vietnam Communist Communications|2|
|DRV Communications|6|
---
|Doc ID|6637225|Doc Ref ID|A6637224|
|---|---|---|---|
|INon - Responsive|TTOP SECRET TRTNETOP|51!:Clll!: I|llINI!:|
|Non Responsive| | | |
|3/0 / STY /R42-58| | | |
|3 /o / STY /R42-68| | | |

SITUATION SUMMARY

Allied tactical indications of impending moves and reflections of relocations in Vietnam's Allied Military Region (MR) 5 highlighted unusually high volume of activity. Additionally, during 16 and 17 February, messages passed an unusually high volume of activity in this MR.

On 16 February, a possible element of CO SVN was located in the coastal provinces, marking the first time this entity has been observed outside its normal base area in Tay Ninh Province.

In the northwest corner of Quang Tri Province, a probable forward observer was associated with the intensification of obstacles and fortifications in the area of the PAVN 325C Division.

In the eastern DMZ area, communications indicated possible impending action by the PAVN 27th Independent Battalion. Farther south, communications reflected intensified activity in the area of Quang Tri city.
---
VIETNAMESE COMMUNIST ACTIVITIESIN QUANGNAM PROVINCEIN QUANG NAM PROVINCE
RS 44 SUBHQ, RS 44 SUBDA NANG DA NANG®
QUANG NAM QUANG NAM Hoi ANO
HQ_PAVN 3Ist REGTo HOIAN® QUANG NAM Pu
HQ, PAVN 31st REGT•HQ, RS 44_ HQ FAVN Znd DIV ,-- f DIVQUANSUBNAM PU
HQ, RS 44 SUB HQ, MRs PUC
HQ, MRS PUC,.----/ SEGPiiT C tlfltl
---
# COMMUNISTSOUTHEASTASIA

# COMMUNIST SOUTHEAST ASIA

# MILITARY

|Vietnamese Communist Communications|South Vietnam|
|---|---|
|Vietnamese Communist Communications|South Vietnam|

# Military Region Tri-Thien-Hue

On 17 February, attack against and occupying of an element of YD against the probable PAVN 6th Regiment near Hue at An Hoa (16-29N 107-34E) and coordinating with Company 9, Allied forces near Hue at An Hoa (16-29N 107-34E, YD 730232), and the occupying unit specified positions, and coordinating with Company 9, (2/Gll/VCM/Tl327-66, 1715202).

# Military Region 5

Moves, reported their intent to relocate Vietnamese Communist units throughout MR 5 disclosed a variety of difficulties. Concurrently, MR 5 transmitted an unusually large volume of messages to Hq, 518002 on the region. During the period of 16 February through 1659Z on the following day, Hq, MR passed 1800Z an unusually high number of messages to the region. Usually, Dinh 3rd Sapper Regiment; the probable Hq, PAVN Element in Battalion, usually high number of messages to Hq, 2nd Division; Binh Dinh Provincial Hq, 5 Forward Tactical Unit; the probable in Binh Hq, VC 401st or 3rd Battalion, Hq, 68th Artillery Regiment; and the probable Hq, VC 402nd Sapper Battalion with rear services activities and several other units associated with rear services activities.

In Quang Nam Province, Hq, MR 5 Provincial Unit Control was located on Services Group 15 February position (ZC 003256), 12 of 16 February near 15-35N 107-49E. Hq, Rear Services Group 44 moved 24 km south-southwest on 16 February near 15-35N 107-49E between Hq, Rear Services 17 February, when it was located near 24 km southwest 107-57E between east-central (ZC 172776).
---
|Doc ID: 6637225|Doc Ref ID: A6637224|
|---|---|
|VIETNAMESE COMMUNIST ACTIVITIES| |
|VIETNAMESE COMMUNIST IN MR 5 ACTIVITIES| |
|HQSAP401stREGZ Quang Ngai| |
|QUANG Ngai VC 38th LFB| |
|HQ66th PAVN NGAIVC 38th LFB REGT DakTo| |
| |KONTUMN|
|LAOS LAOS HQ PAVN 174th REGT| |
|Kontum U/IB3FNT ASSOCHQ PAVN 3rd DIV| |
|SUSPARTY UNIT PAVN 1st DIV SUB| |
|Pleiku U/1B3FNT Assoc| |
|AnKhe HQ, MR FTE Qui Nhon| |
| |CAMBODIA|
|DARLAC U/IB3FNT ASSOC| |
|Ean Me Thuot PUC SUB Ban HQ Trnot Me MR SUB| |
|8EiAET 50Vlbl| |
---
# Doc ID: 6637225 Doc Ref ID: A6637224

QuangNam
Quang was Nam, a subordinate of pe probable Quang Nam Provincial Unit located in pe 13 February position of 15-52N 108-14E (BT 035536), 18km norpwest of its position. Oper elements in pe area reported a variety of difficulties on or near 15 February.
Quang Nam reported pat it was surrounded; Hq, Rear Services Group 44 reported peir intent to move on 13 February position. Oper elements reported a variety of difficulties, on or near 15 February.
Hq, Rear Services Group 44 reported pat it was located on time near 15-41N 107-57E (ZC 173368) and surrounded. The Hq, 2nd Division reported pat it was located on 15-39N 108-02E (AT 825310) on 14 February and under attack.
The Hq, Rear Services Group 44 informed pat PAVN intended to move on 17 February. An unidentified radio terminal had been located in pe vicinity of 107-52E on 16 February, two days earlier it had been located in pe vicinity of 15-54N 107-52E (ZC 062593).
On 17 February, an unidentified radio terminal had been located in pe vicinity of 15-44N 108-10E (AT 972406) and reported pat it was under attack. Hq, MR5 Main Force Unit informed pat it was under attack. Hq, MR5 Forward Tactical Control Element reported pat it was located on 17 February near 14-04N 109-10E during pe period 15-17 February.
This element, also reported by pe 3rd Division, was located near pe central portion of pe province on 15 February, last located near 14-09N 108-54E during pe period 15-17 February.
In Quang Ngai Province, on 14 February, pe suspected Hq, 38p Local Force Battalion, located near 14-57N 108-55E (BS 766521), reported pat it was in a difficult situation. The 401st Sapper Regiment also reported on 17 February pat it was in a difficult situation near 15-07N 108-34E (BS 389722) on 16 February and 18 February.
In Kontum Province, pe suspected Hq, PAVN 174p Regiment was located on 16 February proximate to 14-23N 107-31E (YA739915), 15km soup-soupeast of an unidentified associate of pe PAVN B3 Front on 11 February position. Also on pe same day, located near 14-17N 107-55E (ZA 155800), 15km soupwest of Kontum city, and 44km norp-norpeast of pe unit's 8 February position.
---
# Doc ID: 6637225

# Doc Ref ID: A6637224

general area on
A subordinate of pe PAVN 1st Division was located in pat subordinate on 16 February, of its pe PAVN 1st Division was located 14-14N in proximity to Division was to located 14-14N in 107-56E same pat same general (ZA 171758), 40km norpeast (ZA pected artillery unit moved about 8 February location. area 16 norpeast of about 8 27 km February, in proximity sus 171758)', 40 km its 27 February near k soup-soupwest A location.
between suspected (YB 675068), in 1st Division, norpwest on 14-31N border. 9 and 17 February, artillery unit moved when it was located soup-soupwest 107-28E between 9 and 17 February, Cambodia it when Division, was Kontum Province near was pe located Province located near 14-31N border Hq, 107-28E PAVN 66p Regiment (YB 675068), in Cambodia near pe Konttun 17 February near PAVN 11km norpwest of its (YB 1st near 14-44N Hq, 66p 107-38E (YB 856302), 17 km Regiment, 15 February 17 was located of DakTo and on Dak February 17 14-44N 107-38E 856302), position norpwest of To and 11 km norpwest of its 15 February position.
In norp-central Pleiku Province 14-O9N an unidentified associate of pe B3 Front was located norp-central Pleiku near Province, 14-09N an 108-05E (AR 845641), unidentified associate 19km norp-norpwest of 19 February Front pe norp-norpwest of Pleiku B3 was located of Pleiku City and 15km norp of its near City 108-05E (AR 845641), 4 February position. km
ments In 16 February Darlac Province area, of pe B3 Front was located on In pe pe unidentified associate of Darlac Province area, pree units pree units accomplished move - accomplished move- ments. February near of its An unidentified An 12-25N 11 February location, and 38km located associate (ZU 134715), approximately 107-53E pe B3 Front was on 20 km soupwest of Ban Me Thuot. February at 18 k to 12-25N 11 Thuot. February (ZU B3 Front associate was 107-53E 134715), and 38 approximately soup- located nearby on Meits soupwest of Ban Me Thuot 20 soupwest km soupwest Ban Anoper location, Anoper 12-26N Front B3 107 -53E associate (ZU 133730) km was soup- having moved perefrom radio terminal 11 located moved having and Hq, 16 February. from a nearby pere 16 on A radio February point point at 18 12-26N km which to pe norpeast between 107-53E pe is subordinate to norpeast {ZU 133730), between of near Hq, 10 February position and 28 approximately subordinate Thuot pe and -16 near 11 its its 12-29N 12-29N 5 Provincial MR February. MR 5 108-07E Provincial 108-07E (AP 855806), A Unit Control Unit 855806), 28 approximately of Ban Me terminal was located on 17 February Control ksoupeast was which located 32 km soupeast is 32 on km Ban soupeast 17 February to of 10 February position and 28 approximately subordinate Thuot

1718582; 1723087; R515-68 (2/612/VCM/R518-68, R515-68, 1711132; 1716252; R5og-68, 1715502; 1721152; R512-68, 1804102; R517-68, 1802402; R513-68, 1801502; 180410Z; 1722002; R514-68 R517-68, 180240Z; R513-68, 180150Z; R516-68, R516-68, 172308Z; 172200Z; R514-68, 172115Z; R512-68, 1700302; R49g-68, R505-68, R498-68 R506-68, 171858Z; R506-68, R510-68, 1613072; 162050z; 1710192; R503-68, R508-68 RSl0-68, 171113Z; 1610002) 1612152; R490-68, R497-68, 1616352; 171625Z; RSOS-68, R509-68, 171019Z; 1617002; 1707432; 1714212; R503-68, 171550Z; R508-68, 170743Z; R502-68 R502-68, 171421Z; R493-68, 1610452; R486-68, R489-68, 170030Z; R499-68, 162050Z; R498-68, 161700Z; 1611302; R488-68, R497-68, 161635Z; R493-68, 161307Z; R489-68, 161215Z; R490-68, 161130·z; R488-68, 161045Z; R486-68, 161000Z) (8181\ii £0JTJN)

# TOP SECRET TRINE3 /0 / STY /R42-68

# 3/0/STY/R42-68
---
# Military Region 1

|Military Region 1|Military Region 1|
|---|---|
|of the On OnLiberationNews 16 Februarytheradio|(XT 393932) ,the Agency kmsouth oftheCambodia-north-16 February radio station servingthe Main station was locatedMain Office|
|106-16ELiberation ofthe Newsabout Agency2|(M)LNA) was located near 11-42N|
|central 106-16E TayNinhProvince|(XT 393932), aboutborderandapproximately52k east-2 km south of the Cambodia-north- northeastofits central Tay ofNinh 17 January location. approximately Province border and CO SVNwas locatedeast-52 km on 16 Februarynear SIG INThaslocatedthesetwo|
|firsttime 16 February that near M)LNA at 10-42N 106-16E|{XT entitiesin this387915), thethis area of TayNinhProvince|
|(2/c10/vcY/Ro5o-68SPOT REFORT ,1714292)|(2/GlO/VCY/ROS0-68 SPOT REPORT, 171429Z) (08BRiii SOITIN)|

# Military Region 2

Thounusually highvo lumeof122 messages an From 1through 10 February,the alternate through 10 February, messagesto theHq, the alternate Hq,suspectedMyM2 passed

an unusually Provincial high Unit(MTPU) volume of 122limitednumberof whichwere Myto the suspected also

be Tho ingpassedonone Provincial Unit laneofthe (MI'PU), a limited recently isolatedcommunicationsntm1ber of which were also

alternate headquarters thislaneis observedbeing passedframethe grouppassed on being locatedwithinMR located withinlane 2, one messagesDuring observed being MR2.of Duringthe comparabletimeframetherecently the comparable isolated communications time

in January,only22messageswere passed bythe vo lume

alternate headquarters to the suspectedMTPU _

The normal vo ltm1e of messages passedon this lane is 4 to 10 daily.

northernalternateHq, The The Chau Dc alternate Provincenear theCambo dianborder Hq, MR2waslocatedon MR 2 was located on 7 Februaryin10-54N

13 February229064) , 107-02E northern (WT Chau Doc Province andthe suspectedMTPUwas locatedonnear the Cambodian border at 10-54N

107-02E (wr incentral Dinh TuongProvinceat 10-27N 229064),and the suspected Ml'PU was located 106-08Eon 13 (XS 259545) _in February central Dinh Tuong Province at 10-27N 106-0BE {XS 259545).

# Military Region 4

firstApossible elementofCO SVN has time possible this entity has element hasbeen noted been of COSVN noted outside has been located near located CO SVNnearSaigon,thebaseareatheSaigon, innorthwestern Tay first time this TayNinh Province entity Ninh Province since been outside its first observance COSVN's base area in Gia northwestern 16 February,SIGINT located

June Dinh Province at 10-47N in 1963 _ 1963. On On 16 February, SIGINT 106-49E since located (XS 983924) radio its this radio this first approximately observance station in Gia Dinh Province at 10-47N 106-49E (XS 983924), approximately
---
# Doc ID: 6637225 Doc Ref ID: A6637224

3 9 September1967 locationwipinpe 9kmeast km eastof Saigonandabut126km CO SVNbasearea
of Saigon and about 126 km soupeast of its
3 September 1967 location wipin pe COSVN base area.
(2/0 /vcY /R12-68 SPOT RERORT, in preparation)
(SFCPFTSAVIN)
2 _ 2. DRV ORV Communications
DMZ Area
ated wip pe PAVN 325C Division was instructed on In pe Khe Sanh area a probable forward observer associ-probable forward immediately 17 February observer associ- in intensify his to ated wip pe his observation and report PAVN 325C Division was instructed on 17 any changes February to Allied obstacles, fortifications
intensify observation and report emplacements and pe direc- immediately any changes
queried specifically fortifications, strip.
tion in
Allied of aircraft landing at pe presence from pe observer
of aircraft obstacles, landing about at pe air
Messages of "enemy air strip. emplacements The observer was
on Hill indi- pe was direc- 595
cated considerable difficulty due to fog from pe area_
(16-39N specifically queried
106-41E, XD 825425) about
pe presence
Messages by pe PAVN 27p impending action in Independent Battalion on
16 February indicate possible Messages by pe PAVN 27p Independent Battalion in pe one eastern DMZ
Companies 16 February 6 and indicate 7 were informed pat pe action possible impending Front would attach pe attach one eastern DMZ.
company of 6 pe battalion to Bach Dang pe
Companies and were informed pat (possible would 320p Divi- Front PAVN 320p one
company
sion) for one of one pe battle battalion The
time and location were unspecified_Bach Dang (possible PAVN Divi-
Anoper message on
sion) for battle. 16 February of 15 February at battalion detach-time disclosed pat were and location unspecified.
ment was but pat Comrade KIEU of
Anoper message ambushed on pe night on 16 February disclosed pat a battalion (un - pe Khe Can detach-
located)
ment was ambushed on pe night (a high ranking at individual 15 February individual (un-pe Khe Can of
Front)
located) was safe _ but pat Comrade KIEU (a high ranking of
Front) was safe.
On
16 and
16 Regiments elements communications tactical activity 803rd
and 17 February,
communication of bop pe PAVN 803rd of bop pe PAVN
and 812p Regiments reflected of bop intensified
near
Quang Tri 107-15E and 392543) _ of 803rd Regiment reported on 107-12E
and 812p Tri city wip reflected intensified bop regiments mentioning Ngo Xa tactical activity near
(16-46N
Quang of 321 an element of pe 5 km norpeast Bang pe city_ city wip YD elements
norpeast of pe regiments mentioning Ngo On Xa
16 February, men element
(16-46N 107-lSE, YD 392543), 5 km of city. Allied On
force
16 February, an and 10 M4l pe of tanks in 803rd Regiment reported it 803rd pe Bo Regiment
reported (16-5ON on Allied
YD 335627) area.
force of 321 men The 10 Ist Battalion, M41 tanks in pe - Bo Bang (16-SON 107-12E,
would attack an
YD 335627) area. an American The 1st company at Battalion, My Khe 803rd Khe
Regiment
(16-46N 107-15E reported it
YD 404555) if pat company remained My
YD 404555) attack 17p, if pe 3rd Battalion reported night pat American company company remained at pe night of not wish
pe 16 February make
16 wish to 107-15E, February.
On pe
On pe 17p, pe 3rd Battalion reported it "did not it "did to make
6 -
FFOPSEERET FRHNE-6- TOP SECRET TRINE
---
# Doc ID: 6637225 Doc Ref ID: A6637224

further night attacks fighting thereprt of further night attacks the because the battlefield because battlefield problems could not problems could not be be resolved after resolved after the fighting. The 3rd Battalion later submitted a position with a detailed reconnaissance report an unspecified four fences of various types planted within the position 80 Allied sweep and collected reported blockhouses within the position. Americans The 812th Regiment and operation. In much reported three message of equipment 17 February its 6th Battalion had while resisting an Battalion resisting in which Ngo killed an Xa would strike mentioned, an element of the 812th 17 Xa was continuously to Hai Xuan, Hai Quy and Hai Trieu by sweep operation. In a annihilate of message the 812th Regiment stated it by Ngo of the "enemy" company Regiment February 11 enemy" stated in which it company would strike in the townships of continuously of to annihilate the company (all unlocated--probably near Quang Tri City) Military Region 4 275th On On 15 February, a message passed to AAA associated) the passed to from 66th Battalion, probable 3rd company disclosed that nine vehicles belonging to 275th Regiment (possibly AAA associated) from its subordinate "Regiment 3rd collateral 290" had arrived probable "Regiment company had arrived. disclosed The that 290th Regiment is carried nine Regiment vehicles the 367th Air in is belonging in carried to Defense Command 238B Regiment. Defense Regiment was as was possibly pass-subordinate to indicated that of an AAA On regiment, and its responsibility An subordinate 3rd company are believed the 4483) Battalion in of the Battalion. battalion headquarters located in to be 66th Nghe its Province, while 3rd the battalion company (18-5ON are believed headquarters to be is located located in the vicinity of Nam Thuong (18-SON 105-24E, WF 4483).

MR Northwest Cumulative SIGINT since Hq, PAVN since SIGINT 27 December 1967 suggests that an element of the 316th Division and its two division subordinates are no PAVN longer active 316th Division in North its and of Vietnamese MR deploy two division North- we subordinates st and may currently be are no longer in the active the process of operational in North Vietnamese MR North- ment and west may currently be are in the process operational deploy- ment. possible split of the division headquarters, lack of communications Indications of deployment by the division have included a possible split of the division headquarters, lack of communications.
---
|Doc ID: 6637225|Doc Ref ID: A6637224|
|---|---|
|INon - Non Responsive I|Responsive|
|FOP SEEREF FRTNETOP SECRET Tltf fcqp:|3/0 / STY /R42-68|
|betweenthe divisionandPAVNHigh Command|between use the of operational-typeme ssagesbetween division and PAVN High Command since the division since 6February February,|
|and the subordinatesfrom27Decemberto 31 January _|useof operational-type messages between the divisionAlthough Divisionis the and current not confirmed, 27 the current its subordinates status and location ofthePAVN 316th Infantry and from location SIG INT and collateralsuggestbothof December the to PAVN 31 January. 316th InfantryAlthough|
|at Division elementsofthe least is not confirmed,316th areboth are active SIGINT and inLao scollateral suggest|at least elements of the 316th active in Laos.|
|(2/0 /VCM/R92-68 ,16----2)|(2101vcM/R92-6s, 16----z) (2Jf!!c1&1 SAV INV) sxorm,|
|MR MR Viet_Bac sinceAlthough notedincommunicationswithits was activeincom-Althoughthe the Hq,|Hq, possiblePAVN 305th(Airborne) possible PAVN 305th (Airborne)subordinatesBrigade hasnot been possible headquartersthree has not late January,in been noted the communications with its three subordinates|
|communicationwithHq, since late January, MR Viet locatedinthe theVietBacas lateas vicinityof 21-26Nofpossible headquarters 12 February _ was active Twocom-in|the subordinatesHq,in theBac Giangarea of MRViet Bac ,whileof the 106-21E thirdwas believedtobeinBacThaiProvince (XJ with 2452)werethe 2452) were in MRlast lastBae located Bae Giang as late in theofvicinity as MR Viet 12 February. of Bae, explana -No 21-26NwhileTwo|
|tionfor the tionthird the silenceofthe was believed to be internalBrigaderadiogroup isin Bae Thai Province. No explana-|apparent _the apparent. for silence of the internal Brigade radio group is (2/0 /VCM/R94-68 , (2/0 /VCM/R94-68, 1622182) 162218Z) KSECRFTSALDL (SECRET SOE DJ) ~TOP SLEREF FRHNE8 - -8- TOP S~CltET TRI~,E|
---
Doc ID: 6637225                                  Doc Ref ID: A6637224
             INon - Re. sponsiveNonResponsive I                  ~TOPSECRET FRINE
                                    .....                                    TOP                i~GR~         TRIW~3/0 / STY /R42-68
                                                                                3/0/STY/R42-68
                                                                                9 -
                                                                         TOP SECREF FRINE-9-
                                                                            TOP               SEClt~T       TRlt•E
---
|Doc ID: 6637225|Doc Ref ID: A6637224|
|---|---|
|Non - Responsive|Non Responsive|
|TOP SECRET TRINETOP|GR T2IWi3/0 / STY[R42-68|
|TOP SECRET TRINET-10-|10-|
|TOP SECRET TRINET-10-|1OP 51!;CR.1!; I Tlll!~E:|

Output:
{
"Who": "National Security Agency (NSA)",
"What": "Vietnamese Communist activities, military movements, tactical indications, communications intercepts",
"When": "18 February 1968",
"Where": ["Vietnam", "Southeast Asia", "Quang Tri Province", "Quang Nam Province", "Kontum Province", "Darlac Province", "Pleiku Province", "Thua Thien-Hue Province", "Military Region 1", "Military Region 2", "Military Region 4", "Military Region 5"],
"Security Clearance": "TOP SECRET"
}


Input:
"
Here is some messy data parsed from a pdf. These files may contain redacted information.
Using a json format, ouput the who, what, when, and where of the document, and required security clearence
Use the following json format:
{"Who": "key names or groups", "What": "keywords or ideas from document", "When": "day/month/year", "Where": ["referenced locations"], "Security Clearance": "CONFIDENTIAL, SECRET, or TOP SECRET"
} Text: |Doc ID|6636729|
|---|---|
|Doc Ref ID|A6636728~SECRET S4VHN|
| |2/0/VCM/R65-68|
|FOLLOW-UPNR 25 TO| |
| |SPOT REPORT|
| |AVC ,AVM/OPER~G-HV23452|
| |SPOT' REPORT|
| |5 FEBRUARY 1968|
| |PLUS USM-604 9 GCU2J45Z|
|DIST: 5 DISTzFEBRUARY OSCAR/VICTOR AIFA OSCAR/VICTOR 1968 AUSTF 9 AfPA| |
| |WHITEUSM.,.604 9|
| |WHI'IE HOUSE|
|PLUS GCU l AUS'IF SJ| |
|HC HOUSE| |
| |HCF|
| |FOLLOw-UP NUMBER 25 TO|
|COORDINATEDVIETNAMESECOMMUNISTEQLLO\:~ ... up NUMBER 22 TO| |
|OFFENSIVE EVIDENCEDIN_SQUTH VIETNAM (2523322JAN OFFENSIVE EVIDENCED IN SOUTH VIETNAM (2223J2Z JAN)| |
|unitsRecent SIGINT evidence indicatesadditional deployment ofConunist wrl.tsRecentaround urban centers in South Vietnam from the SIGINT evidence indicates additional deployment northernmost provincetoof Co:mrm.mist around urban centers in South Vietnam from the northernmost province to theDeltao| |
|In Military Region ( R Tri-Thien-Hue 2 FebruaryTTH ) the possiblePAVN 9th Regimentwas located by SIGINTon In Military 167-16E SIGINT Region (YD 425491 ).Februaryin the vicinity asmaintains| |
|cityat 16-42N communications with three unidentified subordiratescurrently| |
|and its tentativeforward elemente| |
|unitsIn MR In MR 5, thereare 5, there of various citiesoare significart concentrations of| |
|subordinatewestern Dak Hq, In the western highlands| |
|in Kontum city areao| |
|probableHq, areao| |
|elements are currentlyRegiment.11near Kontum| |
|probable city Hq, PAVN 95B Regimert currently located nearPleiku unidentifiedsubordinate,95B TheHq, PAVN and other lilth other uidentifiedPAVN B3 Front-asscciated| |
|its| |
|PAVN BJ Front and its tentativeforward elemente| |
|unitsIn MR In the coastalarea , t he coastal the Hq Hq., PAVN 3cd Division,163 gubordinate| |
|citiesof Phu My and Phu My &rd Bong Sonin e::i:: t ~central the Hq~ Bong5 Son MR MR Forward023+,~central Bink: Dinh Tactical Element are')per3ti ng| |
|cities of My and i n Binh Province near the| |
|cities of My and i n Binh Province,, Inthe eastern Quarg Nam-Queng "in Froyincearsas ?| |
|ofCommunist main forceunitsincluding thePAVN 2n:i Hq ,Communist of PAVN 368B Regiment; the probable Y·:· ,: :, Cong (VC) 4(b2-i Sapper Battalion; andmain force U.Ylits inclu d.i ,· ,,,.. the PAVN Divi;c;icn; th e pr obabl e| |
|Hq, Rear Services Group 4L| |
|are accompanied by provincial units & varicus u:-:;id,,rr:.t,if'ied| |
|Hq, Rear Services byGr oup 4h i al ha3unik: been noted vas.inc c u idanti_iedelementso| |
|(1l-llNM 1, SICINT indicates contirved Conmunistinterest ir theBenCatIn MR In1d6-36E' _ XT 750360) andLai 3 nd l.P SIGINT indi~ates Message3 ofKhe (11-L0w ua ::·,y continued Crn1P'!u.rd.st Li t e ::"e !2 t, :in the Ben Cat| |
|of Binh Duong Province Du,ong 1y:16.:36E,ProvinceoXT 150360) sages Lai Mes and of Khe 3 and(11~.Ly\·I:;February Fseed to| |
|Comunist military intelligencecontrol authorityIr .'1 subordinatehavs| |
|targetso| |
|conjunctionEarlier| |
|targetso the with infantry elerentsof thePAv734 .:1 0 ,'l i nt.,t success messages of Comrrm,; rl.,st, had revealed ar·ti.llery pl,~nc,.firs- 11 r ,.---·J '' ' i'i W!determ:l:ted t,) BerCat i| |
|conjunction with infa ntr y elementi5 of the PAV1,J ·t~hLiwicion,~:iv,iiii o n.| |
|InMR 2 an elenent of theAlternate Hq ,MP ? 2 ani #n6 tentativeVC 261st Battalion have moved +0 pocitions `itni-; 15 k:!. t~ e 1~y tenta.tive| |
|locations in western Dinh Tucng Prcvincewith.: l.r, 2 J.S :. b : ·,1}n"y| |
|261st In Battalion MRan element have mo,:9d 'fuong of the t o po~itions AlternAt.s Hq 9 Q3 l''F Pobuay the €lement of the| |
|F~k ::i. :i,,ni'-\:' :KvTho city fromthet:-1~ m el«1ment f romcit'y VC| |
|THIS DOCUMET CONEA In; 21| |
---
Alternate Hq., Hq,MR Battalionwes locitedon l w48 located near 10-27N Febrary near 10-29N and 176,-2LE (XS 538571) and pe tentative 261st In addition (XS 5hl592 ).
Alternate tentative 261stMRBattalion w::>.s pa tentativa !J.:ing 2 was loeat,ed located ooar 10°27Non Febr·L-iary neiar 538571) IoneAn ProvincialUnit kas 1~6=2LE (XS 1¢=29N 106-25E 1(£"16~25Et..r:w repositioned 18 km to pe norpecorpeast from in proximityto peninsand is now located about 1f k soupestof (XS 541592 )o 18 km In addition$to pe nor'p=corpea.stp,:: tentativefrom its 1 February Saiegon in it:sAn lProvincial location and February Unit location has unidentified elements locatedon 2 is now located about 10 km concenbratedinan areanear 10-39N soutbmiest 2 Februery in peproximity of Saigon Cholcn areaope to Tkesenine unidenti unidentifie1 elements (xS 7878 )o unidentifiedelementsare {fied elements located are concentrated on February in pe near14-39Nin an area Cholon areao 1/6-38E106=38EThese (XS 7878)0 1o loo 3/0/STY/R31-68 3/0/STY/R30-68 J/O/STY/RJl0 68 2 02 J/O/STY/R30~68 ~23 ~ SECRE S4VHN

Output:
{
    "Who": "Coordinated Vietnamese Communist Offensive",
    "What": "Follow-up spot report detailing Communist unit deployments in South Vietnam and military activities in different regions",
    "When": "5 February 1968",
    "Where": ["South Vietnam", "White House", "Kontum city area", "Phu My", "Bong Son", "Binh Province", "Ben Cat", "Saigon Cholon area"],
    "Security Clearance": "SECRET"
}


Input:
"
Here is some messy data parsed from a pdf. These files may contain redacted information.
Using a json format, ouput the who, what, when, and where of the document, and required security clearence
Use the following json format:
{"Who": "key names or groups", "What": "keywords or ideas from document", "When": "day/month/year", "Where": ["referenced locations"], "Security Clearance": "CONFIDENTIAL, SECRET, or TOP SECRET"
} Text: # SECURITY

3/0/STY/R14-68

16 January 1968

DIST: SEA SIGSUM 14-68

16 January 1968

DIST: SEA SIGSUM 14-68

THIS DOCUMENT CONTAINS CODEWORD MATERIAL

Declassified and Approved for Release by NSA on 10-10-2018 pursuant to E.O. 13526
---
# Doc ID: 6636715

# Doc Ref ID: A6636714

FOP SEERET FRHNETOP SECRET TRit~E 3/0/sTx/R14-68 3/0/STY/Rl4-68Jan 68 22042 16 DIST: 16 Jan 0 /uT68 2204Z DIST: O/UT SQUTHEAST NATIONALSECURITY AGENCY NATIONAL ASIASIGINT SUMARYSECURITYAGENCY SOUTHEAST ASIA SIGINT SU:MMAR.Y AsiaThis report inNSA This report summarizes developments noted throughoutSoutheast All Asia informationin availabletoNSAat time available to this reportof publicationon onSIGINT1968.attime of ispublication based entirely16 January 1968entirely16 on onJanuary except where All information otherwise specificallyindicated this report is based SIGINT except where otherwise specifically indicated.

|CONTENTS|PAGE|
|---|---|
|situation Summary|1|

# I. CommunistSoutheastAsia

A. Military

1. Vietnamese Communist Communications South Vietnam
2. DRV Communications communications

Non - Responsive THIS DOCUMENTCONTA INS 1/10 PAGE(s) Non Responsive THIS DOCUMENT CONTAINS i/10 PAGE(S) ~TOP SECRET TRTNEI OP SECll~I Tllf!qq~
---
# Doc ID: 6636715

# Doc Ref ID: A6636714

Communist In Military Region (MR) 5 Toarea
In Military Region interestin pe Dak To in area (MR) 5 in Soup Vietnam, Vietnamese Soup of Vietnam, western Vietnamese Kontum Province continues communist to be reflected in interest in pe communications serving military of Kontum Province intelligence continues to be reflected in elements of pe PAVN 1st Division communications terminals. PAVN 1st have relocated into pe Tomilitary To pe soup, two PAVN B3 Front-associated terminals have relocated in pe norpern Kontum concentration involving oper elements of pe Front in extreme norpern Province. In pe DMZ area SIGINT indicates pe possible Hq, regiments PAVN now Soup 325C Division and pe area near pe Laos / Quang Tri division's SIGINT indicates pree subordinate Province Border now Soup pe possible regiments Hq, PAVN are 325c concentrated in DMZ in pe Khe near Laos Sanh pe Laos / Quang Tri Province Border. In pe ment noted pe in Soup Vietnam approximately 10km norpwest regiment was pe was noted of DMZ passing messages area of Soup Vietnam, way infantry regiment is located of possible pe same general area 320p Division, passing pe Khe messages Sanh originated by a area originated indicating pat pe of Soup by Vietnam suspected infantry way station ECHO regiment is located in pe possible pe same 320p Division, indicating station ECHO was located on pat pe regiment 15 January in is located in pe general area. Station ECHO was located of Khe on Sanh 15 January in soup Vietnam approximately 10 km norpwest of Khe sanh.

Subject: Reference "Rear 3/0/STY/R09-68 Section 3/0/STY/R09-68 Services Cancel part B part this item. item A para 2

Non - Non Responsive

FOP SEEREF FRHNE-1 - TOP SECRET TRIPAJ~3/0 /sTY/R14-68
---
# DEMARCATION

|THAILAND|CONCENTRATIONS OF B3 FRONT ELEMENTS IN WESTERN HIGHLANDS|
|---|---|
|CAMBODIA|DAK SUT|
|CAMBODIA|DAK TO|
|LAOS|KONTUM|
|LAOS|KONTUM|
|CAMBODIA|PLEIKU|
|CAMBODIA|PLEIKU|
---
|Doc ID|6636715|Doc Ref ID|A6636714|
|---|---|---|---|
|FOPSEEREF FRAE|TOP SECRET|TRI~JE3/0 /STY/R14-68|3/0/STY/R14-68|

COMMUNISTSOUTHEASTASIA

CO:MMUNIST SOUTHEAST ASIA

A. MILITARY

1. Vietnamese Communist Communications - Southsouth Vietnam

Military Region 5

In the western highlands, 714126), January PAVN western Kon tum its 15 January PAVN western the Hq, 32nd Regiment, Province

lst Division, was located on near Division, 107-3OE 1st was located 714126) - on 15 in Kontum Province near 13-40N location 107-30£ (YB 15 km to km 7 km south-southeast of south-southeast the 32nd of its Regiment 14 January latest location

About is Kontum Province; PAVN 15 km clustering of PAVN units which to the northeast of the which now 32nd includes: Regiment's Hq latest PAVN B3 Front location is a clustering of Hq, 1st units Division; now the includes: Military Intelligence Section (MIS) - Hq, PAVN B3 Front, Kontum Province; 1st Division; Hq, 1st the Division; possible Hq the Ist Division Forward Tactical Military Intelligence Section Element; (MIS), subordinate of 66th Regiment; 1st Hq, PAVN the MIS, Division; the possible suspected Hq, 1st Division PAVN Forward 174th Regiment; Tactical Hq, PAVN 66th Regiment; lst Division; suspected Hq, subordinate of the PAVN 174th Regiment; Hq, B3 subordinate a B3 Front; and at least one 1st of the MIS, unidentified subordinate Division; a unit of the Hq, Front; and at least one unidentified unit

Indications of Communist interest on Allied forces Communist Dak To in the interest area were revealed in two order-of-battle information messages Allied tion on of 15 January exchanged between MI subordinate--located on forces in the Dak To were elements of the two revealed in 1st Division. of The MIS, messages 15 January lst exchanged the Division ordered (YB 663215)--to reconfirm between MI elements of the 1st 12 January in Division. the 852188) The Laos near Allied units MIS, 1st 14-39N Division 107-28E ordered a subordinate-~located on the designations 12 January in Laos of near 14-39N 107-28E on Hill 663215)--to (YB 823 (14-37N reconfirm 107-38E, YB designations The subordinate was also on of the Allied units instructed to make Hill 823 (14-37N 107-38E, terrain estimate of the YB 852188). The hill and to assess subordinate was also the instructed results of Communist terrain. to make a shelling of the estimate hill of the hill and to assess the results of Communist shelling of the hill.

The MIS directed another on The 14 January near 14-42N subordinate--located in the Dak To MIS directed another subordinate--located 107-39E YB 872277)--to forward the in the Dak To immediately area immediately on 14 had picked up text the the "original "original near 14-Li-2N of the address" on the envelope text The of American belonging to 107-39E the address" (YB 872277)--to on the envelope forward the subordinate name and address of an subordinate had picked up. The subordinate subsequently answered giving the of the and name the to 8th Infantry address of an According this subordinate 'perating this unit belonging collateral, the to 1st is P a.ttalionsubordina -e of 8th the Infantry. also U.S _ 4th Division and According to is collateral operating in the Dak this unit To area is subordina~e MIS also U.S. The to the notified Division 4th and is that the in Allies Oak the To area. The MIS notified this subordinate that the Allies

TOP SECRET TRI~JE3/0 /STY/R14-68
---
# Doc ID: 6636715

# Doc Ref ID: A6636714

hadwithdrawn had withdrawn identified) Hill from Hill823andthat from 823 Ngo Do Lan (14-37N and that the "82nd Battalion" ZB 4113) (not(not further was at Ngoc Do Lan (14-37N 107-53E, ZB 4113).

terminal the Kontum-Pleiku Province In In the tentatively associated with the Kontum-Pleiku Province on border B3 Front was 92km north-border area, an unidentified located east 14-13N 16 November location and 15 near terminal tentatively 108-12E (AR973730) on associated 973730) with 15 January, the B3 Front about was located km north-near of its 14-13N 108-12E (AR 25 January, km southeast about of Kontum 92 located Another City of Another terminal east its 16 November terminal associated with the southeast 14-14N location associated area on with January near and 16 January near its tenuously 25 km the Front was of Front was tenuously Kontum in the same general 108-11E (AR 961742) the located (AR 961742), in approximately approximately same general 24 km 24 area east-northeast of km on east-northeast 16 of its 14-14N 26 December 26 December 108-11E location following B3 Front location. Both of elements are presently located: Both of these entities are within an area in which the Hq following B3 Front the probable Gia Lai B3 Front Pleiku Province; elements are the possible Hq, B3 Front Forward presently located: an element of the Hq, B3 One; Pleiku probable Province; Gia Lai the Provincial Hq, Provincial possible Unit; Unit; B3 and at Forward Front least three unidentified B3 Front-associated radio entities.

To the east in PAVN 3rd Binh central Binh Dinh Province associated with the with the east in central 3rd Division Dinh was Province, initially located near radio station 14-associated 08n 108-54E (BR 721618) the PAVN Division was initially located near 14-0SN 108-54E (BR 721618).

In the Quang Nam-Quang Tin Province border area, the Quang Nam-Quang Tin Province border area, Quang Nam a communica- Province tions subordinate of the Rear Services subordinate which is suspected of the Rear to be either the services Headquarters reported 1st or south-central Headquarters, 3rd Battalion of Quang Nam of Province, the PAVN which 68th Artillery Regiment either January is suspected to be the that or 1st it 3rd Battalion about to move of the This PAVN subordinate was located 68th Artillery was Regiment, on 12 reported that in it was about to Quang Nam Province move. This Province near 15-43N subordinate located 107-59E (ZC 200400) on 12 January in south-central In the same general moved 15-41N 12 the probable Hq, Quang Nam area near 15-43N PAVN 2nd 107-59E Division Forward Element (ZC 200400). In the same general about 12 km area, the km northward Hq, probable be tween 10 PAVN 2nd and 15 January to Division Forward Element position near moved about 108-08E northward (ZT 922364) between 10 and 15 January to a position near 15-41N 108-0BE (ZT 922364).

was 57E located in station serving the on (ZC 171178) northern located 1967 location The radio northern Quang Tin on northwest The radio in station approximately 42 Do Xa base area approximately Tin km northwest serving Quang the Region Region 15 January near 15 January of its 15-31N 5 Committee 15-31N near (RC-5) 107 - viously indicated that Hq, in 16 November 1967 (ZC 171178), location in MR the had moved to area. the 5 42 Do km Xa base this general of its SIGINT had pre- SIGINT area pre- had durviously December 1967 ing indicated that Hq, MR 5 had moved to this general area during December 1967.

Quang The The Tin probable RC-5 secondary station probable by 15 January secondary RC-5 to a position near 15-32N station had also relocated into had also relocated 108-03E into Quang Tin by 15 January to position near 15-32N 108-03E.
---
|Doc ID|6636715|Doc Ref ID|A6636714|
|---|---|---|---|
|FOP SEERET TRINE|TOP CR T TRzlbli3/0 /STY/R14-68| | |
|(AT 832108) approximately|(AT 832108) approximately 24 km north of its location. These stations possibly of decreased message activity between 18 and 25 December period of location. These message stations activity possibly between relocated 18 and during 25 December. the R142-68 (3/0/sTY/R308-67; 151422; 1518472; R140-68 (3/0/STY/R308-67; 1511372) 1413902; 1514002; 1512452; T128-68 2/G12/VCM/R145-68, R139-68 1611252; R143-68 R137-68 161125Z; 1512552; 1508162; R143-68, 1604302; 160430Z; R142-68, R132-68 1518472; R140-68, T130-68 151400Z; R139-68, 1512552; R137-68, T127-68 151422; R132-68, 141330Z; T130-68, 1512452; T128-68, 1508162; T127-68, 1511372) (01!!0MT 8tllii1)| | |
|Military Region|Military Region 1 COSVNa directed In In 15 January message subordinate in message the Military Intelligence Bureau (MIB) the Military the Tay Intelligence Bureau (MIB) of COSVN Ninh Province-Cambodia border area comrades improve directed to a subordinate are organization, the in the Tay leadership and thinking Ninh Province-Cambodia of the border area to "improve So they the not organization, demoralized by the enemy" but rather leadership and thinking "valiantly fight and work to avenge for comrades of the comrades so they are not demoralized the "reconsolidating the under- by the who have enemy" been rather ' but been lost MIBCOSVN "valiantly further and fight stressed to work the need avenge the comrades who have lost,' ground shelters and combat trenches" to MIB COSVN further stressed the need for counter "reconsolidating the sweep operation _ the under- According to ground shelters collateral and combat Allied Operation YELLOWSTONE last located trenches" to counter the sweep is currently operation underway According in Tay Ninh Province underway 11 May in to Tay in northern Tay collateral, Ninh Province. This Operation This near subordinate 106-05E (XT 176996).| | |
|(2/G10/VCM/T100-68_|(2/G10/VCM/T100-68, 151600Z) (O~Ci<Li SAOIN)| | |
|Military Region_1Q|Military Region 10 Branch of the Liberation The VC radio station serving The VC radio station News serving Agency-first observed in the probable Quang Duc communications Branch in January 1962 -was of the Liberation News initially located observed Agency--first by SIGINT on in on communications in January the Province at 12-15N 1962--was initially located 107-43E SIGINT by (YU 944544) January 12 This location is near in central Quang Due Province at 12-15N 107-43E (YU 944544). Provincial This Committee is location at near 12-15N the 107-41E 26 December (Yu 938560) position of the Quang Due Provincial This Committee at 12-15N 107-41E (YU 938560).| | |
|( .@Jii! eru~ r JA , JJ; )| | | |
|Military Region_|Military Region 2 Party On 15 January, On 15 January, central central Dinh Tuong Province two a message passed be tween passed betweentwo unidentified VC unidentified VC Party elements in Province warned of an Allied| | |
---
# Doc ID: 6636715 Doc Ref ID: A6636714

|operationscheduledto|warned operation that"the scheduled lst Battalion, to take placeon Regiment|
|---|---|
|along with in "the operation TanPhu(10-27) to "alertTan Hoi warnedwith artillery"elementswas scheduled to andMy Phuocthe vicinityofCai 12th Regiment,to conductan2250)| |
|along that artillery" 1st Battalion,elements CaiLay (10-23N was scheduled 106-06E. conduct XS Division,an2250)| |
|operation in the vicinity 106-06E of Lay XS(10-23N2159) _ The recipientof 106-06E, XS| |
|themessage and My Phuoc was Tay (10-27N 106-06E, XS XS2159).[10-26N recipient The 106-10Eof XS| |
|XS XS [10-27N the 2753] , 106-08E. 2753],messa ge wasTan Phu XS 2456 ]andMy Hanh Dong[10-HanhTrung| |
|directed[10 -21N [10-21Nto 106-18E Tan Hoi106-lSE,"alert XS 4243] 4243],[l0-26NMy Hanh 106-10E , My28N 106-lOE,Trung| |
|XS [l0-27 N2757]."106-08E, XS 2456] and My Hanh Dong [10-28N 106-lOE, XS 2757].| |

Collateralreports OperationCORONADOIXis currentlybeing conducted in Dinh Tuong Province.

volume messages14 61messages to Provincial M On Onof 14 JanuaryAlternateHq , January Alternate to4 of Hq,itsMRsubordina22 waswas noted sending a

thesuspected volume ofwere messagesto61 Giangto thetentativeVC and 16 4 of its subordinates.261st Battalion; Twenty-six19to Kien TuongandBenTre ProvincialUnit;

messages were An Giang Provincial passed the tentative VC 261st 16Battalion;to thetentative19 to the suspected An Unitsand Unit; Available to the informationtentative

indicates Kien Tuong that thatsuggestingthat ofthesemessages were and at Ben leastsome Tre Provincial Units. Availableweredatedas earlyinformation

as the8 January, indicates at least some that of portionof the traffic passedearlythese messages dated as by

as the8 Alternate January, suggesting MR2permay havebeen lly passedto thesesubordinatesa portion been backlogmaterial . of the traffic passed Atotalby

Alternate10messages 2 ,2 may Hq, MR per dayha v e norma backlog material total

of to is byAlternateHq , of3 to 10 messagesMR day is normally passed to these subordinates by Alternate Hq, MR 2.

(2/G10/VCJ /R14-68 ,1416002; (2/Gl0/VCJ/Rl4-68, 141600Z; VCM/T104-68 ,1600312) VCM/Tl04- 68, 160031Z) (GiGilii GOIHDI)
---
# Doc ID: 6636715 Doc Ref ID: A6636714

2. DRV Communications

Group apparently serving a major headquarters has been observed in SIGINT. Since at least 8 January, a new communications watch at PAVN headquarters has been presently unidentified in SIGINT. Although the status of this group is presently unidentified, the subscribers noted include PAVN High Command; Hq, Military Region (MR) 4 (North Vietnam) Vinh; DMZ Front; Hq, the detached Military Region (MR) element of the DMZ Front; probable Hq, of the DMZ Front; 320th Division; and two unidentified entities associated with the 320th Division.

On 16 January, approximately 28km west-northwest of 16-41N 106-30E (XD 590458), a radio terminal serving Hq, PAVN 325C Division was located. This location marks the first time that this radio terminal, which serves the 325C headquarters and its detached element, has been located anywhere south of the general Dong Hoi city area in North Vietnam.

Since the division headquarters with its detached element has been virtually inactive since 16 January, the location of the detached element is imminent to the consolidation of the division headquarters.

Additionally, the Hq serving PAVN 101D Regiment was located in the vicinity of 16-39N 106-27E (XD 565435) on 16 January. A radio terminal serving Hq, PAVN 101D Regiment XD 565435, was located by SIGINT in the vicinity of Sanh. This was previously located north of 106-27E (XD 565435), northwest of Khe Sanh. With the relocation of the Hq of PAVN 29th Regiment to an area north of Khe Sanh, the SIGINT now indicates that the 101D Regimental subordinates of the Hq, PAVN 325C Division are located in the vicinity of 17-07N 106-23E (XD 471401) on 16-37.

The Hq of PAVN 29th Regiment was located in the vicinity of 106-23E (XD 471401) on 16-37.
---
|Doc ID:|6636715|
|---|---|
|Doc Ref ID:|A6636714|

mentsmaintain13 January PAVI PAVl'' (xD 802579) 95C Regiment was located in 95c Regiment on was located At in the present the vicinity of all the vicinity time of 16-48N 16-48N three regi-106-35E 106-35E (XD 802579) on communications 13 January. At with the present possible time, Hq all 325C Division three regi- On 11 29th Regiment and High Command initial ments January SIGINT maintain SIGINT reflected with communications the communications possible Hq, 325C be tween the Division. On 11 January reflected initial Hanoi communications between the 29th Regiment and High Command, Hanoi. Regiment 16-44N approximately 15km north of Preliminary information locates of Khe Sanh, Preliminary information locates the 7th Battalion, 7th Battalion, in the vicinity PAWN PAVN 90th 90th of Regiment, approximately 827505) north 106-42E (XD 15 km on 15 January Khe Sanh, The The in 7th Battalion the vicinity has 16-44N of recently been engaged in the 106-42£ (XD 827505) the on transporting of supplies, may 15 January. 7th Battalion and tactical has recently ing communications have been engaged in indicated that transporting the of battalion may supplies, and be preparing tactical communications for combat. DMZ Front On On 15 January, 15 was January, located in a radio terminal central DMZ identified as identified area in as the vicinity serving Hq, of 16 - 551 DMZ November 106-47E (XD 918712) approximately 30 km the DMZ Front and Front was located in the area km south of central DMZ in vicinity its of November 106-l'.~7E 16-SSF position (XD The apparent its detached of 918712) relocation 30 of south of its position. The apparent relocation the DMZ Front and its possible reunification with element have been indicated in SIGINT its possible reunification early January _ since with its detached The element of above-noted location have been further indicated substantiates that at least in SIGJ..NT since early January. part The DMZ Front above-noted location has effected substantiates further this relocation and that at possible reunification. On 14 January a PATIN artillery-associated element located unidentified possible in the DMZ area reported the positions of On 14 January PAVN artillery-associated an element located in artillery battalion and its subordinate companies the DMZ area reported the positions subordinate the unidentified message of an possible indicated battalion that the units to would move artillery battalion units its and to companies. following positions: A message the indicated 17-02N command post to would move 106-53E company that the 17-02N 106-53E (YD 020875); one company to the following positions: the to battalion command 106-53E post (YD 011867); 17-02N second (YD 020875); to 17-02N 106-53E 106-53E one company (Y 014874); to 17-021'-"J 106-53E and possible third company company (YD 011867); a second to 17-02N to 17-02N 106-53£ (YD (YD 009872) _ post 15 January the 8th Battalion 014-874); and On of January a possible third same company communications revealed that to 17-02N 106-53E the (YD 009872). On 15 poss ible the same communications was located revealed 17-03N at that 106-59E the command YD 145874) a post of APoss ible 14th Company was located possible 8th Battalion was reported at located 17-03N at 106-59E 17-02N 17-02:N (YD 106-59E 145874). (x 134877), possible and 14th an Company was unidentified company located reported company at 17-03N at 107-O0E (YD 145881) _ 106-59E (YD 134877), and an unidentified at 17-03N 107-00E (YD 145881), (2/0 /VCM/Rl1-68 2/c11 /VCM/R83-68, 1521152; R09-68, 1520192; 3 /0 /STY/RL3-68 _ ~ Rll-68; (2/0/VCM/Rll-68, 152115z; 1514172) R09-68, 152019Z; 3/0/STY/Rl3-68 Rll-68; 2/Gll/VCM/R83-68, 151417Z) (JLCICET JJPfH~ ~7 - FFOP SEERET TRINE-7- TOP SEGR~T TRzlbLE
---
|Doc ID: 6636715|Doc Ref ID: A6636714|
|---|---|
|DONG HOI|QUANG BINH|
|QUANG BINH|VINH LINH Special Sector|
|He 320 DIV BRAVO|45 JAN QUANG TRI|
|INF REGT 320 DIV|15 JAN 17°|
|THUA THIEN DANANG|QUANG NAM|
|107|135|
---
Doc ID: 6636715 Doc Ref ID: A6636714

PAVNHigh Command / 320th Division PAVN High Command/320th Division On On 15 Januaryway station ECHOwas 15 January suspect station regiment is of way ECHO was noted passing messages originated indicating regiment has by a suspect infantry regiment of infantry regiment in the vicinity 320th probable Division, that this of station ECHO Division, indicating This that this regiment been located is in the same area as station ECHO since at least 27 December. ECHO. This regiment has been located On the in the same day same area SIGINT located as station ECHO station ECHO in the vicinity of since at least 27 December. On 16-42N the same 106-40E day 106-3OE (XD 608220), to on (xD 789469), SIGINT (XD 78 9469), located a move move station the to ECHO northeast of approximately 30km from the 7 northeast in the vicinity of approximately of 16-42N 16-28N from its its previous location previous location on 7 January in the January in the vicinity of 16-28N vicinity of 106-30E (XD 608220). Also on Also originated by Hq, on 15 January way probable be located in the indicating 15 January way station BRAVO was station BRAVO 320th Division noted was again noted passing of message headquarters that this a that message station headquarters station 106-48E Station BRAVO was this originated BRAVO (xD 923740) on was be last by continues to continues Hq, probable to last located 320th located Division, in in the the DMZ indicating general area at 16-56N of BRAVO. Station BRAVO 15 January. at least Message activity of located in the DMZ area area of station probable on this same type occurred 923740) at this 16-56N same type 106-48E occurred (XD on 7 January; January. January; on 15 at wa S least Message as as late late as activity of 21 December Hq, ECHO at 320th Division located in the general 21 December Hq, probable 16-28N Division 320th 106-30E (XD 608220) in was located the general area of station ECHO at 16-28N 106-30E (XD 608220). (2/G11/VCM/R82-68 (2/Gll/VCM/R82-68, 1509502;R85-68, 1518052;3 /0 /STY /R1O-68) 150950Z; R85-68, 151805Z; 3/0/STY/Rl0-68) 6 , .. ~LYS z "~'~ , Ji . _f:rrqz~ An vicinity of 16-43N High An unidentified PAVN High Command subordinate has relocated unidentified PAVN Command subordinate 15 January from has relocated to the to the vicinity of 16-LJ-3N 16-33N 106-08E (XD 233486) on 106-08E 106-15E 20km in a 15 on (XD 233486) (xD 350330) January on from This previous This subordinate was the previous location of 16-33N the represents location move of approximately noted active nor'thwesterly 106-lSE (XD 350330) on on 7 January January. direction This represents a move of approximately was first 20 km in northwesterly 21 November 1967 subordinate direction, 1967 and remains unidentified. unidentified _first noted active on 21 November 1967 and remains (2/G11 /VCM/R084-68, (2/Gll/VCM/R084-68, 1515112) 151511Z) Lerennm OOUHJ)(SFGPF'i Military Region 4 Military Region 4 from A possible PAVN regiment an possible unidentified battalion was PAVN regiment was to mentioned in mentioned in suspected referred a message passed message to passed be located From "Battalion 66, Province an in Nghe An unidentified E275"("E" 16 January battalion on to subordinate The message suspected to be to located in Nghe An Province ("E11 on 16 January. The PAVN designator PAVN designator message referred to a " :Battalion 66, E27511 is the standard -8 - ~TOP SEEREF FRINE _ TOt' SECRET TRil>Ii
---
Doc ID: 6636715
Non - Responsive
Doc Ref ID: A6636714
Non Responsive
LTOP SEEREF TRTNE
EGRET 'fllIN E3/0/sTY/R14-68
3/0/STY/R14-68
list regiment) . for Neiper SIGINT nor pe all-source Order-of-battle for regiment). Regiment messages unidentified"275 _11 Order-of-battle 275p Regiment11 messages in from pe 27p 11 275. Neiper active SIGINT in nor Norp Vietnam. Independent Battalion pe Vietnam _ all-source However , on 23 September 1967 two list a 275p active Norp However, on in pe DMZ area : in 23 September pe for pe latter"275" was DMZ area 1967 referred to an unidentified referred two to was not noted an from pe 27p Independent A unit A unit Battalion desig- nator nator for pe latter 27Y not noted. (2/G11/vcM/t043-67 _ (2/Gll{'/CM/TOL'i-3-67, 1606272) 160627z) ('il@P OiRRiiT ififlHE) TOP SECRET TKTNEE
---
Doc ID: 6636715..INon - Responsive I      Doc Ref ID: A6636714
   Non       Responsive                FOP SEEREF FRAIE
   ....                                    TOP               ~~CR~T          TRIP>I~3/0/STY /R14-68
                                                                                3/0/STY/Rl4--68
                                      ~TOP SECKET TRTNE1OP   5~C1lI!:T -10-  'fltlf~E

Output:
{
"Who": "NSA, Southeast Asia SIGINT Division, Military Region COSVN",
"What": "Vietnamese Communist communications, Military activities in Southeast Asia, Communist interest in specific regions",
"When": "16 January 1968",
"Where": [
"South Vietnam",
"Western highlands",
"Kontum Province",
"DMZ area",
"Quang Nam-Quang Tin Province border area"
],
"Security Clearance": "TOP SECRET"
}


Input:
"
Here is some messy data parsed from a pdf. These files may contain redacted information.
Using a json format, ouput the who, what, when, and where of the document, and required security clearence
Use the following json format:
{"Who": "key names or groups", "What": "keywords or ideas from document", "When": "day/month/year", "Where": ["referenced locations"], "Security Clearance": "CONFIDENTIAL, SECRET, or TOP SECRET"
} Text: Doc ID: 6636701 Doc Ref ID: A6636700

•• •
•••••
9 •• ••
••••••

•• ••

3/0/STY/ Ro7-68

3/0/STY/R07-68

SECUR DIST: 08JAN 68

os JAN 6821002 0/UT07-68210oz

SEASIGSUM DIST: O/UT

SEA SIGSUM 07-68

ITEDSTATESOFAMERI SOUTHEAST ASIA SigINT SUMMARY THIS DOCUMENT CONTAINS CODEWORD MATERIAL THIS DOCUMENT CONTAINS CODEWORD MATERIAL Declassifiedand Approvedfor Release byNSA on 10-03-2018 pursuanttoE.0 1 0- 03 - 20 1 8 pu r suan t to E . O. 135261 3526
---
# TOP SECRET

# NATIONAL SECURITY AGENCY

# SOUTHEAST ASIA SIGINT SUMMARY

|CONTENTS|PAGE|
|---|---|
|Situation Summary|1|
|Communist Southeast Asia| |

# Responsive Non-Responsive Military

I. Communist Southeast Asia

# Vietnamese Communist Communications

1. South Vietnam

# Vietnamese Communist Communications

2. DRV Communications

THIS DOCUMENT CONTAINS 1/10 PAGE(s)
---
Doc ID: 6636701 Doc Ref ID: A6636700

SITUATION SUMMARY

Reflections of Allied activity continue to appear in communications serving Vietnamese Communist units in the Quang Nam-Quang Vietnam, South Tin Province border area. The relocation of Military units in the Region of (MR) radio terminal serving the Hq 55 in South Vietnam. The tentative PAVN B3 Front relocation into Laos Province of a radio terminal serving the Hq, B3 Front, Kontum in the Dak To Province, and area highlighted activity indications of continued Communist interest in the western highlands in the Bien Hoa and Long Khanh Provinces. Allied and Communist activities messages between MR Hq, exchanged by military intelligence subordinates on 4, 6, and 7 January. In MR 7 January reported a message passed responsive in "enemy" Province on the following day, two sweep operations were scheduled to begin in eastern Dinh Tuong Province. In the DMZ area, an element of the 27th Independent Battalion was ordered to plant mines and conduct small-scale ambushes along Route. It was revealed that large amounts of gasoline have been transshipped from Hong Ha to the movements of a "K200", possibly a transshipment point. In addition, services of communications boats from Hong to Vinh were also noted in rear communications.
---
# Doc ID: 6636701 Doc Ref ID: A6636700

|COMMUNISTSOUTHEASTASIA|COMMUNIST SOUTHEAST ASIA|
|---|---|
|MILITARY|Vietnamese Communist Communications - South Vietnam|

Military Region 5
Hq PAVN pe Quang Nam-Quang Tin area, communications serving pe PAVN forces
Main Force forces. On pe preceding day - it pis engaged in combat and been located in norp-central Quang Tin Province near 15-38N
108-CCE 108-CS'Esamea reanear by (AT S42295); 6 January, Hq, 2nd Division was located in pe division area near 15-37N
in pe division headquarters resame near 15-37N ported pat 108-08E (AT S35288). On to 7 January, pe division headquarters also reported pat it was about to relocate
and pe unspecified time re and combat January, reported combat, on pecified January Division Forward Element on and 8 January to about and location_ pat reported
a The division raid was Through at least division it was to be conducted at be conducted bombardment, 7 January also at
an pe possible Hq, time 2nd and location. Through at has continued least 7 January, to communicate on hourly radio schedules wip subordinates of
pe 2nd Division--pe possible on 6 January, subordinate of pe Rear Services Headquarters 15-54N quarters, 6 Quang Nam, was located in eastern Quang Nam near 108-15E (BT C54587)
On 7 January, pe Hq a 5MFUC Rear-associated was engaged in combat element and requested pe maintenance informed pe Hq, 5 MFUC pat of it close communications engaged in combat
A subordinate of pe subordinate requested Hq and pe MR maintenance 5MFUC was of initially located on close communications.
66 January in January in norpwestern Quang Tin near 15-33N norpwestern Quang Tin near 15-33N 107-58E (zc 175213).
Ngai Provincial To pe soup Unit--located near 15-05N in Quang Ngai Province, 15-05N pe probable Quang pe 108-41E probable (BS 528685) Quang Ngai Provincial Unit--located near 108-41E (BS 528685)
---
# Doc ID: 6636701

# Doc Ref ID: A6636700

on 3C December indicated on 7 January that it was about to relocate.

|Phu Yen Provincial Unit|located near 13-22N 108-S1E (BQ 654758)|
|---|---|
|PAVN 3rd Division|located in its 3 January position|
|Unidentified subordinate|located near 12-53N 109-04E (BQ 898247)|
|Phu Yen Province|located near 12-53N 109-04E (BQ 898247)|
|Laos in the vicinity of Kontum|located at 14-41N 107-21E (YB 537241)|
|PAVN Front|located approximately 21 km north-northwest of 14-41N 107-21E (YB 537241)|
|PAVN 174th Regiment|moved to a terminal near Kontum Province-Cambodia border at 14-30N 107-32E (YB 728041)|
|PAVN 174th Regiment|moved about 9 km southwest of its 14 December location in Kontum|
|Dak To Military Intelligence Section (MIS)|noted continued Communist activity in the area|
|PAVN 1st Division|reported burning and destroying forest areas on 4 and 5 January|
|PAVN 1st Division|reported to the collateral unit, Air Defense "K13," on 13 January|
|Subordinate unit|reported an attack on an undetermined location on 3 January|
|Subordinate unit|set up a recoilless rifle emplacement at 4350 meters southeast of Hill ONGUYNH|
|Subordinate unit|conducted an attack on an undetermined location at Hill 0815 (G) on 3 January|
---
# Military Region 1

|Doc ID|6636701|
|---|---|
|Doc Ref ID|A6636700|

haditsIndetachmentshad"metwith difficulties" subordinate In a messageof message of 5 5 Januarythe January the subordinate reportedthat subordinate reported that oneone ofits of sufferedcasualties"met SIGINT difficulties"detachments had with and"possibly and "possibly had suffered inwestern Kontumnear located near14-35Nthis on 31December casualties." SIGINT located this107-44E subordinate(YB957149) on 31 December in western Kontum 14-35N 107-44E (YB 957149). subordinate In In a messageof message to ascertainwhich Allied of 7January ,theMIS instructedanother January, AlliedunitsatNgok anotherthe MIS instructed RinhRua (14-37N subordinate107-42E to ascertain YB8318 ) whichand PleiCan units (14-47NNgokat 107-3SERinh Rua YB (14-37N8525) equated 107-42E,to 7JanuarytheAllied "designatorsYB the 9318) and Plei Can (14-47N Thissubordinate107-35E, iocated locatedonAllied activity107-43E Oak YB8525) on equated to near 14-41N Allier! "designators." (YB 905223) = This subordinate,has beenreportingon Allied located on January near 14-41N inthe 107-43EDakToarea (YB 905223), Thehas MIS been was reporting 14-34Non 107-2CE activity 7Januaryinthe thein Laos-Kontum-Cambodiaborderthe To area. The areawas near14--34N onlocated 2/Gl2/VCM./R074-68,(YB 691107) _04091 92 ; 08080Cz ;RC72-68 = January in Laos-Kontum-Cambodia border 0715032 ;2/612 / VCM/ R074-68 _ (YB T046-68 RO73-68 (2/G12 /VCM/TC57-68107-29E area (2/G12/VCM/T057-68, near 0605152 ; 0808552 ; R071-68 060515Z; T046-68,691107). 040919Z; T071-68, C801452 ; 071503Z; RC6 9-68 Change1 , RC66-68 0800152 ; 0711102 ; 080855Z; R073-68, 0721352 ;Ro7o-68 0808002; R072-68, 0716302 ;RO68-68 0801452; 0706052 ;0714302 ; 0623352 ; R069-68, Change 1, 080015Z; R071-68,RC65-68 072135Z; 0706452 ;R070-68, R064-68 0716302; R068-68, RC62-68 0714302; R066-68, R041-68 , 0711102; 0411402 )R065-68, 070645z; R064-68, 0706052; R062-68, 0623352; R041-68, 0411402) (iiiOii\iHi StIUDI)

Light InfantryDivision (LID)indicates Preliminaryinformation indicatesthattheHq ,VC 9th cast facility and Light Infantry Division Thedivision (LID) headquarterswas is againactive noted is again active on its in briefbroad - broad- activity of extendedradio aperiodon cast facility.1 extendedJanuary (using a new 24October 1967 ,The 7 division headquarters signalplan) , new was noted in afterbrief activity on 1 and 7 January silence (using since signal plan), after 24 October 1967. Thelackofradiocommunications on onthisgroup may be attributedto theradio The lack of activationof communicationsnew communications groupthis group may be onattributed 20 October _the October. an Thisnew group possiblyrepresents communicato activation of a new communications group tions between PAVN and on 20 This unidentified new group control possibly authorityandtherepresents communica- possibleHq , tions between an unidentified 7th Division; controlthe tentative authority 7th Divisionand theprobable Forward 272ndRegiment_ unidentified possible Element Hq, PAVN 7th unidentified Division; the subordinate;7th tentative a ndDivisionthe Iq , ;_;'orwardVC stationsinthis northeastern Tayofthisnew groupareofElement, and The stations subordinate; and the probable currentlylocatedin communicationsgroup employedpart are the Hq, currently VC 272nd located Regiment.in northeastern The stationsTay Ninh of NinhProvince this Province.new group One Oneofof the the signal stations planassociatedwith the in this communications Hq , group Sth LID watchcom -employed part of munications priorto 24October.the munications the signal plan prior associated to 24 October.with Hq, 9th LID watch com-

# TOP SECRET TRTNE -4- TOP 5l!Cll1!: I Tllffrql!
---
# Doc ID: 6636701                                                      Doc Ref ID: A6636700

|northeasternTay|2-3 January.|
|---|---|
|According to Ninh was attacked U.S. Communist forces on base area located in| |
|the MIS other developments, In other MR1 developments, from a subordinate in a message sent on Hoa-Long Khanh|7 January to|
|Province border area the MIS, MR 1, from subordinate reported that in "81 the delivered three tons Bien|Hoa-Long Khanh|
|Province border Dong area, reported According to collateral "81 delivered the re is three tons|Dong Nai|
|of goods to Dong Nai Regiment Nai." operating in the to According Bien Hoa - Binh Duong Province collateral, the re is a| |
|cover border designator for the|cover designator area. Collateral for Bien 274th Province|
|the also indicates Regiment and which that that is there is is currently a currently Nai" is| |
|operating Rear eastern rating in eastern Bien Hoa in|Hoa Province and there The ais|
|Group 81 Rear Services element subordinate to COSVN|what type of goods COSVN. The|
|subordinate stated that it wanted to go|we re involved and (not further stated that|
|were involved identified) to pick up the to and that it wanted go supplies the "3rd Battalion"|(not further identified) to pick up the supplies.|
|In the same message, the road because|the subordinate reported that it|
|had been unable|"the enemy on heavy artillery fired continuously was and because later|
|Highway "3rd Battalion|had artillery been 2 unable 2 fire fired fire. The|
|base subordinate bombed but|the cross subordinate reported that it|
|no "3rd casualties Battalion's base area" bombed but that there were|no casualties.|
|In Allied convoy 6 January, a message on convoy 6 at Cong Ba Mieng (10-57N on January, the subordinate reported|that an Allied|
|YT that 2911 was burned, an "fired on at by Cung our troops and two gasoline tank Ba Mieng (10-57N 107-06E,|was "fired on and our troops and two gasoline tank|
|seized were|burned," and this that subordinate on "eight compatriots" had been|
|trucks were|seized. YT 2911) located by that "eight compatriots" was "fired on and our troops and two gasoline tank|
|On 4 January the MIS|MR 1 instructed second subordinate|
|to investigate On 4 January the the|subordinate of "our raid" at an undetermined results MR MIS, 1, instructed|
|enemy situation on Route 15 and ordered Nuoc Trong Bridge|location. The results was "our|
|of raid to report daily on (not at an undetermined the|location. The subordinate was ordered at the to report daily on the|
|located)|enemy situation This subordinate was located Nuoc 5 Trong on Route 15 and at the on January near (not Bridge|
|T47-68, 0710252 ;(YS 071S002 ;|1C-42N (2/G10/VCM/ R1O-68|
|located).106-59E (YS 185836 ) in eastern|10-42N 106-59E This subordinate 185836) 2/G10/VCM/T54-68 Hoa|
|in eastern located Bien Hoa Province Bien on 5 January Province, near|0808202 ; (2/GlO/VCM/Rl0-68, T43-68 , 071900Z;0615302 ; 2/GlO/VCM/T54-68,|
|080820Z; T47-68, 071025Z; T43-68, 061530Z; 3/0/STY/R06-68) (BH8MT B!J7IH)| |

# FOP SEERET FRTNE-S- TOP SECRET TRI?~E
---
# Military Region 10

On 6 January, the probable subordinate C95 Reconnaissance Company, MIS 5th LID and one MIS, resumed reporting for the first time since 12 December. This subordinate was located near 11-3CN 106-34E (XT 700874), approximately 40km west of Hon Quan Special Forces Camp and about 40km southwest of Phuoc Long-Binh Long border.

The Hq, Phuoc Long-Binh Long border CS5 Reconnaissance Company was located near 11-56N 106-43E (XT 879204) on 9 December.

During late November and early December, elements of Bu Dop-Bo Duc VC 9th LID were attacked in the Phuoc Long area by Allied activity, as reported by MI elements during early December.

In the past, the resumption of reporting by MI elements and the reappearance of Vietnamese Communist elements involved in communications after extended periods of silence had indicated impending tactical activity (2/G1C/VC/M/RC08-68, 071332Z).

On 8 January, entities in central Dinh Tuong Province were forewarned of two message passes between two unidentified entities, with the first "enemy sweep" operation scheduled to take place on 8 January.

The first subsector operation force in Nhi Qui (10-24N 106-06E) was reported to conduct a sweep, followed by the second force in Phu Qui "subsector" of Chanh Gi Phu (10-20N 106-06E) XS 2949, and the Tan Hiep vicinity (10-27N 106-17E XS 4755) of the 7th ARVN Division.
---
|Doc ID: 6636701|Doc Ref ID: A6636700|
|---|---|
|YOP SEEREF TRTNETOP SECRET TRI!~~3/0/STY/RO7-68|3/0/STY/R07-68|
|Operation CORONADO IX is currently being conducted in Dinh Tuong Province.| |
|My Tho radio station tentatively identified as serving the Provincial Unit position in western Dinh Tuong near station tentatively relocated 16km southwestward, between the 1C-24N Provincial Hy 3 and Tho Unit position relocated in western 16 km southwestward, near Dinh Tuong between (2/G10/vcM/RO0?-68, 10-24N 106-ClE (xs 0715002; T052-68, 117517).| |
|(2/Gl0/VCM/R009-68, 071500Z; T052-68, 07193oz) (0IHHU!T 0AVIH)| |
|DRV Communications| |
|DMZ Area| |
|PAVN 812th Regiment tactical communications supplies continue and reflect the movement of considerable amounts to the Cam Lo River. However, references to the specific area of responsibility of the 812th Regiment are yet undetermined.| |
|In addition, the 6th Company, 27th Independent Battalion was ordered to plant mines and carry out small-scale ambushes on 8 utilizing B40 rockets along Route to Cam Lo and Route Lo (16-4CN from Dong Ha YD 1406C0) (16-49N 107-08E, YD 245605) probably to Cam 9, (16-49N 107-00E, YD 140600). (OBE!lM!IT 0JY±Dl~| |
---
Doc ID: 6636701INon - Responsive IDoc Ref ID: A6636700
Non  Responsive

|                           |                           |                           |
|---------------------------|---------------------------|---------------------------|
| TOP SECRET FRFNE          | TOP                       | SECRET                    |
|                           |                           |                           |
| TOP                       | SECRET                    | TRJNg                     |
---
Doc ID: 6636701Responsive IINon - Non  Responsive.....C  Doc Ref ID: A6636700TOP                  i~GR~T         TRI~JE2oLCu Lpc7
                                                                                9 -
                                                                           ~TOP SECRET FRINETOP  S~Cft:ET       TRI~iE
---
|Doc ID:|6636701|
|---|---|
|Doc Ref ID:|A6636700|

|FOP SECRET FRONTOP|SECRET|TRF rqE|
|---|---|---|
|3/ciSTY/ Rc7-63| | |
|3/ C/ STY / l(C7-63| | |

JCRREC-iC 70 %/0/STY{RC5-68 5 January, 1.4.1.,Jar.uary, l..A.l., Eilite yZegion_li .35Jecezcer19670to"30Septemceroffirstparagraph fronl • ' 1 ,....: J'.. cate in fo_rtksentence1557 _ "l S6 7. of first paragraph from CCRRZCZIC}10 3/0/3TY/ RCb-58 .:.:c? ?Z C:.: c; ,o 3/ 0/STY/ R.CC. -68, 6 Jenuary1.4.2. 6 January I.A.2., --... ' '! ~ t 3C+1k/22Cck_Divisicns refieczej .. ... .DRAVOardEcRoand 7;fla-ge Zatlors I! ::L.:.:... ,geifirst :L :::-st sentelce Se r, te uc e to to read"Contnunicationsbetween .::-ea d 2A VN High Conimanabet·deen,tCom:nunications were .• ctj :~ ta tlcLs BRAVO ard ECHO and PAVN High Cornm and \ie re :cef J.ec ;:eJ 127 Lecemle r ~'.- cirge Ch..:,.n ge1* "Jate el ateLo"24lesisefiterce second on on 1 -::-i. st Deceibar I isent enc e secondparagraphfrozparagraph from f •"> ··-:(:.:.. Decc:iu.bt to :: 24- DE:ceEco2 r. 10 - -1 0- TOP SECRET FRINETOt' SECRET TU.IbJE

Output:
{
"Who": "National Security Agency (NSA)",
"What": "Vietnamese Communist activity in Southeast Asia, military operations and communications",
"When": "08 January 1968",
"Where": ["South Vietnam", "Quang Nam-Quang Tin Province border area", "Laos", "Kontum Province", "Dak To Province", "Bien Hoa Province", "Long Khanh Provinces", "Phu Yen Province", "Quang Ngai Province", "Hon Quan Special Forces Camp", "Phuoc Long-Binh Long border", "Nhi Qui", "Phu Qui", "Chanh Gi Phu", "Tan Hiep", "Dinh Tuong Province", "My Tho", "Dong Nai", "Cam Lo River", "Cam Lo", "Dong Ha"],
"Security Clearance": "TOP SECRET"
}


Input:
"
Here is some messy data parsed from a pdf. These files may contain redacted information.
Using a json format, ouput the who, what, when, and where of the document, and required security clearence
Use the following json format:
{"Who": "key names or groups", "What": "keywords or ideas from document", "When": "day/month/year", "Where": ["referenced locations"], "Security Clearance": "CONFIDENTIAL, SECRET, or TOP SECRET"
} Text: # Doc ID: 6636717 Doc Ref ID: A6636716

|3/0/STY/R1 9-68|3/0/STY/Ftl 9 -68|
|---|---|
|22 JANUARY 1968 20552|22 JANUARY 1968 2055Z|

SECUR DIST: 0/UT SEA DIST:SIGSUM 36-67O/UT SEA SIGSUM 36-67

UNITED STATES OF SOUTHEAST ASIA SIGINT SUMMARY

THIS DOCUMENT CONTAINS CODEWORD MATERIAL

Declassified and Approved for Release by NSA on 10-10-2018 pursuant to E.O. 13526
---
# Doc ID: 6636717

# Doc Ref ID: A6636716

TOP SECRET TRTNETOP [5EClln' 'f1tII'4E

3/0/STY/RLS-68

22Jan 68

3/0/STY/R19-6868 20552

DIST: 22 Jan c/UT2055Z

DIST: O/UT

INon Responsive

NATIONAL SECURITY AGENCY

NATIONAL ASIA SIGINT SUMMARY SECURITY AGENCY

Non Responsive

SOUTHEAST ASIA SIGINT SUMMARY

This report summarizes developments noted throughout Southeast Asia information in this report is based entirely on January to summarizes at time time developments of publication of publication noted on throughout on 22 January Southeast SIGINT except 1968.

All where information specifically indicated this report is based entirely on SIGINT except where otherwise specifically indicated.

# CONTENTS

|CONTENTS|PAGE|
|---|---|
|Situation Summary|1|
|Communist Southeast Asia| |
|A. Military|1|
|Vietnamese Communist Communications|2|
|South Vietnam| |
|DRV Communications|6|

THIS DOCUMENT CONTAINS 1/8 PAGE(s)
---
Doc ID: 6636717 Doc Ref ID: A6636716

# SITUATION SUMMARY

Non-Responsive entities relocation of three additional PAVN B3 Front-associated into the Laos-Cambodia-South Vietnam border area highlighted activity in Military Region (MR) in northeastern South Vietnam.

Darlac Province continue Communist elements highlighted in the south, Vietnamese Military Region (MR) in South Vietnam.

Dinh Tuong Province operations in MR border. Forewarnings of Allied sweep Vietnamese Communist elements near the Phu Bon Province were contained in several messages passed between Party-associated stations in that area.
---
|COMMUNISTSOUTHEASTASIA|COMMUNIST SOUTHEAST ASIA|
|---|---|
|A MILITARY|A MILITARY|
|Vietnamese Communist Communications - South Vietnam|Vietnamese Communist Communications - South Vietnam|
|Military Region 5|Military Region 5|
|Military elements continue to be involved in what appears to be a general repositioning of units.|On 20 January 107-51E, a general repositioning of units involved elements continue to be located in the Hq, MR 5.|
|Provincial repositioning was units.|On 20 January 107-51E, a general repositioning of units involved elements continue to be located in the Hq, MR 5.|
|Unidentified subordinate unit located in southern Quang Tin Province near 15-26N of the probable Quang Nam Provincial location.|In other activity, an unidentified subordinate unit located in southern Quang Tin Province near 15-26N of the probable Quang Nam Provincial location.|
|Unit located in a difficult situation on 2 January reported on 21 January that with the western highlands, two more radio entities associated in the Laos-Cambodia-South Vietnam tri-border area where major units of the Front are located.|On 21 January, in the Laos-Cambodia-South Vietnam tri-border area where major units of the Front are located, one of these terminals moved about 14km north-northeast of its 19 January position.|
|The other entity was located near 14-47N, 107-39E (YB 866350) approximately 40 km northeast of its 28 December 1967 location.|A third B3 Front-associated terminal was also located in the tri-border area by 21 January when it was relocated at 14-36N, 107-25E, about 10 km north of its 17 January position.|
|Unit was located in southeastern Kontum Province on 20 January (AS 851090) in the tentatively identified Hq, near 14-32N.|As late as 8 January, the unit had operated approximately 45 km to the north-northwest of that province.|
---
# Vietnamese Communist radio terminals in northeastern Darlac Province

continue to concentrate near the Phu Bon radio terminals in northeastern Darlac Province 108-2SE (BQ 260375 were located on the border where they continue to concentrate near Phu Bon on 21 January near Phu Bon 12-5CN Province border where they located on 21 January near Phu Bon.

|Entities|Location|
|---|---|
|Two of these entities|are associated with the B3 Front 12-SSN 108-2SE (BQ 260375).|
|The other two entities|communicate with Hq, PAVN 5th Division.|

Moreover, delayed information indicates that one of the B3 Front-associated entities in this cluster relocated approximately 130 km due south between 17 December and 10 January from the border near Drang Valley to the Pleiku Province-Cambodia border near Quang Duc Province-Cambodia 12-22Na to 107-3CE position (Yu 722676) B3 Front in Cambodia. The communications suggest an association between the 5th Division and the B3 Front in Cambodia.

The coordination of the Vietnamese Communist activities of those elements currently operating in the southern MR 10 areas and the northern MR 5 areas.

Military Region 1 An unidentified Vietnamese Communist military communications elements located in the Khanh Province area has been active since at least 3 January in the Bien Hoa-Long Khanh link which serves Long Khanh.

|Location|Activity|
|---|---|
|Bien Hoa-Long Khanh link|Active since at least 3 January|
|Long Khanh|Active in western Long Khanh as early as 23 October until 3 January|
|Long Khanh|Active in western Long Khanh as early as 17 January|

The control authority border at 11-07N Province was located on 17 January 106-55E (YT 0c43c8) on the Bien Hoa-Long Khanh link.

Messages observed on the border at 11-07N associated with the Eq, B3 (LID) and later with the Hq, VC type Sth Light Infantry Division.

The involvement of the B3 Front and the B3 Rq, Front with MR 2 elements located within Nam Bo has increased recently, as reflected in the message volumes from the Military Affairs Section (MAS) of COSVN was recipient of high message volumes on 18 and 20 January.
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|Doc ID: 6636717|Doc Ref ID: A6636716|
|---|---|
|by the activation of communications with the possible unidentified activity with MASCOSVN.| |
|Front Headquarters, in Binh Long and increased message relay of other activity, the Military Intelligence Bureau (MIB) In other Detached Element in northeastern Tay Ninh to its COSVN continued the activity, continued through at least 19 January to Province at least 19 January in Detached tactical information relay to its central Tay Ninh near on Allied air located 280544).| |
|The January 13 subordinate continues to report activity in Dau Tieng (11-17N near central Tay Ninh city XT 4846) and/or ground activity in the vicinity of Tay Ninh city XT 1952 (11-17N 106-05E, Detached Element Two XT 1952) was located in east-central reported to MIB Tay Bau Co east-central On 19 January, Ninh near 11-28N types of the COSVN a second subordinate--located on the second number subordinate--located that "all of artillery pieces and 106-12E American, enemy of (XT 316678)--9 January pieces at the Bau Co [11-27N 106-10E stated and XT 2867] that are "all of the enemy forces are American."| |
|Military Region 10 in Binh Long Province observed on 11 January--has activated watch communications. This facility--first in Binh Long Province has activated communications. This facility--first and possibly seven observed subscribers January--has to at on 11 attempting to contact least identified Headquarters. B3 One of the subscribers has been identified as located PAVN B3 One Front the of attempting subscribers has contact been scriber was as Hq, located on PAVN 13 January in Cambodia Hq, Front, while in Cambodia an unidentified Binh unidentified near the sub - Long Province scriber was border on 13 at 11-58N January 106-23E (xU 670243) The near Binh activation of watch communications Long Province border communications is at ll-58N 106-23E is in further indication (XU 670243). The that the Front watch 2111552; 2/0/VCM/ R17-68, 1723292) is expanding its role in a South Vietnam.| |
---
# Doc ID: 6636717 Doc Ref ID: A6636716

Military Region 2
Party-associated On On20 Janua rY , 20 January,stationsin a messagepassedbetween twounidentified
message Dinh TuongProvince warned passed between two warnedofunidentified
pree "enemy" sweepoperations
first pree sweepwa S to platoons" which wererecipient106-11Ealert
Battalionplus first sweep wastwo to be 3351 ) Duongby were "one company
of Nhi peBinh3rd Battalion 106-12E twoXS platoons" whichDiem (10-26N to sweep Nhi Binh
XS 3249)"soupof XSpe3351) an XS unidentified controllingauporitynorp
(10-24N 3249) 106-12E, "soup of pe highway" Duong Diemrecipientwas to
The The norpof "one (10-26N pe highway _ 106-llE, was to alert
Theunidentified an second sweepcontrolling was reportedlyscheduled for of aupority
of an unidentified "battalion and one second sweep was"battalion wouldbe company 106-1OE4pKhanh
Battalion,llp Regiment"and of an unidentified
(10-21N Battalion, 106-06ERegiment" 11p XS 2145) ,PhuQui and would (10-22N instructedto 2746)
be conducted at Long pe (10-21N 106-06E, XS 2145), Therecipientwas pemessagetope Phu Qui (10-22N instructedXS 106-lOE,
last "alert sweep operation willbe Binh (unlocated)." conductedbype According
to pe "Marines" message, whope will sweep "ThanhHoa (10-25N conducted by
(unlocated)" Thanh lastsweep sweep operation Hoa will (10-25N be 106-06E
106-06E, scuchXS 2152) . 9 soupof highway Binh XS pe 2152)"Marines"PhuBinhfourPhuwho
PhuNhuan (unlocated) Phu Nhuan (unlocated) of highway four."
On 21 January
On 21 21 Dinh Tuongmessage and passedto
a message originatedbyan unidentified
Party-associatedsubordinate ofan enemyto
in central for 22 January_ "sweep involvingtwo battalions aupority
and Binh scheduled
Phu of an enemy 106-OOE central for Dinh 22 Tuong January
warned warnedThe of message and mess.agean passed enemy alerted
alertedsweep operation
sweep ThanhHoaits control
operation Thanh Hoain aupority
bop Binh and pe Hua My (10-2ON Phu of an enemy sweep (10-31NXS 10S - 5 7Erinvolving XS105-5 7E (10-2ON (10-25N1041 )-Hoi two
battalions Cai in 106-O1E ,XS 1151)-MyThien XS 1945)-XuanSon
bop pe Hua My (10-20N 106-00E~ 1041)-HoiXSCai XS 0563 ) (10~2SNand
CamSon 106-0lE, (10-21N Cam 1942)-HaiSon 106 -O5E Son (10-21NXS 1151)-My 106-0SE,ThienXS (10-31N 1945)-Xuan
Son (10-20N0563),106-0SE 106-0SE,and
XS 1942)-Hai unlocated) areas
XS Son (unlocated) areas.
ProvincialJanuary A 20 January message passedfrcmpe ProbableMy Tho
Committeetoan passed message from pesubordinateMyprobable Tho
unidentified located
in central
and central
Provincial Dinh Tuongwarnedpat
Committee Dinh Tuong to warned an unidentifiedpat pe peat Cai Lay (10-24N"Marine0 s" o .combat
"Ma:r.ine sub o rdinate combatgrouplocatedgroup
106-07E ,Marine and pe peMarine artillery XS 2250) _artillery" were still
at Cai Lay (10-24N 106-07E, XS 2250).
Finally,an unidentified Party-assoc iatedstationwas
106-O8Eon 19 Januaryin central
located (xs 2644) ,26km
locatedunidentified Party-associatedofits Tuong on 19 January in soupwest station3hasbeennotedcentral in inDinh Tuongat 10-22NDinh 3 January position.at 10-22N
This 106-0BE (XS 2644), 26 km soupwest of its January position.
This unidentified Party-associated station has been noted
---
# Operation in similar movements in the past

Operation CORONADO IX is currently being conducted in Dinh Tuong Province.

|Province|Military Region|DMZ Area|
|---|---|---|
|Operation CORONADO IX is currently being conducted in Dinh Tuong Province.|Military Region 3|SIGINT has confirmed the location of the unidentified major PAVN Headquarters terminal (XD503554) northwest of Khe Sanh.|
|DRV Communications|DRV Communications|SIGINT has confirmed that the headquarters of the unidentified PAVN serving headquarters was located at 16-52N Khe Sanh on 16 January.|
| | |One radio terminal serving that headquarters and another terminal subsequently was located at 106-SE (XD 503654) on 21 January.|
| | |At least seven additional subscribers were noted at the headquarters located at 16-51N 106-57E (XD 537644) on the probable watch facility located on 21 January.|
| | |Recent SIGINT indicates a radio terminal serving the PAVN identified as the Gcv? from its location on 22 October 1967 to 17-04N 106-39E on January 18.|
| | |On January 11, the terminal initially located at 16-52N 106-56E was moved to 17-01N 106-56E.|
| | |The same terminal was located at 17-01N 106-50E (XD 926827).|
| | |At present, the Ky Anh Headquarters maintains communications with Hq, MR I (NVN) at Vinh, the DMZ Front, and three unidentified entities.|
---
|Doc ID: 6636717|Doc Ref ID: A6636716|
|---|---|
| |FOPSEEREF FRHNE|
|TOP SECRET TRl~•E3/0/STY/ RlS-68| |
|unidentified terminals- -one of which is a subordinate of the DMZ Front.| |
|(2 /0/VCM/ R15-68_ Front. 1721452; 2/G11 /VCM/ R1C7-58 ,1812102 )| |
|(838r (2/0/VCM/RlS-68, 172145Z; 2/Gll/VCM/Rl07-68, 181210Z)| |
|(i!HiMT i!NJHT)| |
|Overland Infiltration Shau Valley Rear 01 and 13 January, The high volume of message activity observed on the normal Shau Valley Between Rear Services complex has total of 101 messages apparently returned to were observed between the normal observed Unit 01 Between and 13 January, Shau Valley Rear Services Headquarters and Unit between however 32; the A Shau From 14 January to the present Valley Rear Services Head-quarters of only nine messages a total of 32; and only nine messages however "have been January have :crorn been observed lL:. observed to between these between the present these two entities (3/0/sTY/R13-68, two (3/0/STY/R13-68) entities. ~(SECRE ]SHv LN(SEGRE£ SA.Oil(| |
|Non - Non Responsive FOP SECREF TRINE-7- TOP SECRET TRI~~E| |
---
Doc ID: 6636717Responsive IINon - Non  Responsive......  Doc Ref ID: A6636716~TOP SECRET TRINEI OP  51!:Cll~        Tltl!~E3/0/STY/R19-68
                                                                                3/0/STY/Rl 9-68
                                                                                -8 -
                                                                                -8-
                                                                               YOP SEEREF FRINETOP   SECRET          TRII<4~

Output:
{
"Who": "National Security Agency, Southeast Asia SIGINT analysts",
"What": "Military movements and activities of Vietnamese Communist forces in Southeast Asia",
"When": "22 January 1968",
"Where": ["Laos-Cambodia-South Vietnam border area", "Darlac Province", "Phu Bon Province", "Military Region 5", "Khanh Province", "Bien Hoa-Long Khanh link", "Long Khanh", "Dinh Tuong Province", "Khe Sanh", "Shau Valley"],
"Security Clearance": "TOP SECRET"
}