DOCID: 4120292

---.-·-..... I' ' ..........

CATEGORY = 9 M = 23

MESSAGE = BSSS4959 (3)-P.L. 86-36

,I

.-'

DE·

l"fti==----'"""""'--......... ---__J . -· r==---------i DE

".

,.......,,, __________ ___,DE / =D..-E __ ( ....... ..._ __________ "'"-______________________ ...,..... _ ___,

I r-::-:::-------' DE DE

DE .

.)

)

, 4ZA 3192188 ZKZK PP RNI DE P 15ZSBBZ FM DIRNSA · . -·?_ .. -- --: •. _ _,

TD OSCAR.(UUJ"FORM-TANGO)ZEM T B_f-'.-"S"'E e_R--t·r T-Rrne-·sECTIDH FIVE 31'0(StYl'R272-67 NATIONAL SECOiHTY "AGENCY sour·tfEAST AS-IA SIGIN'r--·suMMARY THE TEUTATIVE THU DAU MDT PROVINCIAL UNIT COMPLETED A SIMILAR MOVE TO THE SAME AREA BETWEEN 27 SEPTEMBER AND 26 OCTOBER C 31'0.(SJ:'(i{.R.26(.-67 > C SE6RET 5~\'-111) 2 DRC COMMUNICATIONS DMZ AREA TACTICAL ACTIVITY OF PAVJIUNITSIN THE DMZ 'AREA AS REFLECTED IN SIGINT HAS APPARENtLY SLACKENED DURING THE PAST HEEK ALTHOUGH ELEMENTS OF THE PAVN 98TH REGIMENT HAVE REVEALED PREPARATIUNS FDR ATTACKS ON ALLIED FORCES IN THE CON TtllEH AREA 9STH REGIMEnT EXTENSIVE RECONNAISSANCE ACTIVITY AND PREPARATIONS FOR OFFENSIVE ACTIONS IN TllE COH THIEN AREA COHTIHUED TO BE REFLECTED BY ELEMENTS OF THE 9BTH REGIMENT THE POSSIBLE 8TH BATTALIOH HAS BEEN NOTED PERFORMING RECONAISSANCE SOUTHNEST OF CON THIEN HHILE ELEMENTS OF THE POSSIBLE 9TH BATTALION HAVE SIMILARLY ACTIVE SOUTllEAST UF CON THIEN MORTAR ELEMENTS OF THE 4TH COMPANY 7TH DATTALI-OH HAVE BEEN NOTED IN ASSOCIATION HITH THE POSSIBLE 8TH BATTALION ON 11 NOVEMBER THE 9TH BATTALION REPORTEDLY ENGAGED AMERICAN FORCES EAST OF CON THIEN Al~D THE HQ 9STH REGIMENT CLAIMED THAT SS AMERICANS HERE KILLED AND ONE HELICOPTER SHOT DOHN A POSSIBLE INDICATIOH OF THE .9STH REGIMENT'S PLAN OF OPERATIOHS WAS NOTED IH AN 11 NOVEMBER MESSAGE FROM THE REGIMENT TO THE 8TH BATTALICJH HltICll REVEALED TllE EllEMY HAS MANY l-IEAKNESSES WE

_MUST FORCE THEM TO PROTECT MANY PLACES AUD NOT ALLON THEM TO CONCENTRATE THEIR STRENGTH AT CON THIEH FURTHER INDICATIONS OF PREPARATIONS FOR OFFENSIVE ACTIVITY HERE NOTED ON 13 AUD 14 HOVEMBER ON THE 13TH THE POSSIBLE 7TH BATTALION HAS QUERIED CONCERNING THE STATUS OF THE BATTLE PREPARA- TIONS AND ON 14 NOVEMBER THE 7TH BATTALION WAS DIRECTED TO OBTAIH THE COORDIHATES OF AN AREA SOUTH OF XUAN HOA Cl6-5411 1S6-58E YD lffS782> DESIGNATED TARGET C FO~ A POSSIBLE ARTILLERY ASSOCIATED UNIT 8S3RD REGIMEHT TACTICAL COMMUNICATIONS SERVING THE 883RD REGIMEHT H.AVE NOT BEEH OBSERVED SINCE 3 NOVEMBER AT l-IHICtl TIME A

-•

-- __ @'pproved for release by NSA on 05-20-2014, Transparency Case# 6588a--

'·

REFNO

poss. -1

~ss .. -s

./

DOCID: 4120292

... .. ·•

f:.

TBP. S_!:elf{f-~f1BRA c:::::·>·····

REFERENCE TO TtlE COMPLETION OF A POSSIBLE BASE.CAMP HAS NOTED THE.ONLY INDICATION THAT 8S3RD REGIMENT ELEMENTS MAY aE TACTICALLY DEPLOYED IN THE DMZ AREA HAS ON 11 NOVEMBER MESSAGE FROM AN UNIDENTIFIED PAVN ELEMENT HHICH REPORTED THAT AN UNIDENTIFIED 2ND BATTALION HAS IN COMBAT THE UNIDENTIFIED ELEME"T HAS FIRST NOTED ON 3B OCTOBER AND SINCE THAT DATE HAS BEEN OBSERVED OPERATING TO THE NORTHWEST OF CON THIEN ISID REGIMENT THE ISID REGIMENT HAS NOT BEEN OBSERVED IN TACTICAL COMMUNICA- TIONS SINCE 1 HOVEHBER HOWEVER REFERENCES TO THE SON LAM CCOVER NAME ASSOCIATED WITH THE POSSIBLE IBID REGIMENT> COMMAND POST HAVE'CDNTINUED TO BE OBSERVED IN COMMUNICATIONS SERVING ELEMENTS OF THE 9STH REGIMENT DEPLOYED TO THE SOUTHWEST OF CON THIEN ANALYSIS OF LETTER BOX NUMBERS CLBN> INDICATES THAT ELEMENTS OF THE POSSIBLE ISID REGIMENT MAY HAVE BEEN HITHDRAHN FROM THE CON THIEN AREA SINCE 22 OCTOBER MESSAGES FROM PERSONNEL SERVED BY LBN'S WITHIN A REGIMENTAL-SIZED LBN BLOCK IN QUANG BINH PROVINCE WHICH POSSIBLY SERVES THE lllD REGIMENT HAVE MENTIONED RETURNING SAFELY FROM COMBAT UNIDE~TIFIED lST ARTILLERY REGIMENT ELEMENTS OF THE POSSIBLE 2HD BATTALION OF AN UNIDENTIFIED lST REGIMENT REAPPEARED IN TACTICAL COMMUNICATIONS OH 11 NOVEMBER THESE ELEMENTS WERE LAST OBSERVED OH 1 NOVEMBER AHD APPARENTLY WERE MOVING NORTH FROM THE DMZ ON 11 NOVEMBER THE POSSIBLE 2ND BATTALION REPORTED THAT B52'S HAD STRUCK BUT THAT THE UNIT HAS SAFE A"D WAS CONTINUIHG TO FIRE ON C-2 CNEAR CON THIEN> ON 13 NOVEMBER AN UNIDENTIFIED ELEMENT REPORTED THAT THE ENEMY IS PLANNING TO USE THE AIR AtlD DIRECTED THAT THE ARTILLERY .-1AS TO BE USED PRESUMABLY TO COUNTER THE AIR ACTIVITY THE MESSAGE ALSO IHDICAT~D THAT ALLIED LANDINGS WERE EXPECTED AND THE ARTILLERY HAS DIRECTED TO STRIKE THE ENEMY LANDINGS IN ADDITION REFERENCE WAS ALSO MADE TO DEPLOYING THE REGIMENT'S 12 7 MM MACHINE GUNS AND THE 85 MM GUNS NEAn EACH OTHER 27TH INDEPENDENT BATTALION 9JI NNNN

,-