spartans_in_darkness

'FOP SEeRE'FHSOMI~fFH*1
based acoustic and seismic sensors, Khe Sanh
was harassed by artillery fire and patrol probes
around its perimeter. Throughout March, SIG­
INT, mostly in the form of D/F from Phu Bai and
voice intercept from the marines inside the
perimeter, detected the disengagement of the two
primary PAVN divisions committed to the siege:
the 304th and 325C. In April, the first elements of
the reliefforce from Operation Pegasus arrived at
Khe Sanh. The siege that had so obsessed
President Johnson and General Westmoreland
and had consumed so many intelligence
resources, ended rather meekly. Within a month,
the base, that had meant so much as an example
of national military will, was abandoned and
destroyed by MACV in favor of another position
about ten miles to the east.
(V) DC!
Richard Helms
(U) After Tet:
Cryptologic Postmortem
I,!""
I
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