DOC.ID: 4121786 .. I\.

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X65358

MSGHSGZCZCZAA8JlZPE569DNAllS

~~I 1.1..t!'I "~' LOl!OL DEC / I (D) (3)-P .L. 86-36 ZKZK PP HHA NRL DE P 23152.SZ fl1 USl'il 27 J"' TU QUEBEC ONEIOEL-TA ) ZEM

/ (b) ( 1) (b) (3) -1 8 USC 798 (b) (3) - 50 USC 403 (b) (3) -P.L. 86-36

S E £ R E T SAVIN 'I IETNAHESE(lNO~_l)jJ_I l~s i49S-65 2/Ql/VCN/T097-65 WEB'7 li•fD-THE DIEN BAC BRIDGE ( l NJ l ON THE NIGHT OF 19 DECEMBER, STRUCipproved for release by NSA on 05-28-2014, Transparency Case# 6588{3 . . ·- 1cD

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4121786

PHU LUONG. 08SERVATION DURING THE WfEK THE NUHSER OF FLIGHTS AND SOATlES INCRfASEO. A6 AIRCRAFT WERE UTILIZED TO STalKE 'ay NIGHT. STRIKES WERE EARLY ANO ACTIVITY WAS CONTINUOUS. SURFACE VESSELS WERE ACTIVE CONTINUOUSLY IN TRANSGRESSING