CENTRAL INTELLIGENCE BULLETIN

• Document Type: SPECIALCOLLECTION
• Collection: Tet Declassified
• Document Number (FOIA) /ESDN (CREST): 03186509
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 15
• Document Creation Date: April 26, 2019
• Document Release Date: April 30, 2019
• Publication Date: January 26, 1968

Approved for Release: 2019/03/29 C03186509
-Top-Sara
3.5(c)
DIRECTORATE OF
INTELLIGENCE
Central Intelligence Bulletin
3.5(c)
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26 January 1968
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To ret �10#
The CENTRAL INTELLIGENCE BULLETIN is produced by the
Director of Central Intelligence to meet his responsibilities for providing
current intelligence bearing on issues of national security to the President,
the National Security Council, and other senior government officials. It
is produced in consultation with the Departments of State and Defense.
When, because of the time factor, adequate consultation with the depart-
ment of primary concern is not feasible, items or portions thereof are pro-
duced by CIA and marked with an asterisk.
Interpretations of intelligence information in this publication represent
immediate and preliminary views which are subject to modification in the
light of further information and more complete analysis.
Certain intelligence items in this publication may be designated specifically
For no further dissemination. Other intelligence items may be disseminated
further, but only on a need-to-know basis.
WARNING
This document contains classified information affecting the national security
of the United States within the meaning of the espionage laws, US Code
Title 18, Sections 793, 794. and 798.
"AS�Ect
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26 January 1968
Central Intelligence Bulletin
CONTENTS
Vietnam: Situation report. (Page 1)
Egypt: Survey operations, prior to clearing the
Suez Canal, are set to begin tomorrow. (Page 7)
Brazil: Military alert (Page 8)
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*Vietnam:
South Vietnam: A widespread, coordinated offensive
by enemy forces in the northern part of South Vietnam
seems imminent.
Action so far has been confined to probes and harass-
ment against Khe Sanh, but references to "N-Day" have
appeared with frequency
"N-Day" is
believed to be the Vietnamese equivalent of "D-Day" and
in the past has been used to mark the initiation of Com-
munist offensive operations, particularly in the Demili-
tarized Zone.
Sporadic shellings of allied installations in areas
where the enemy threat appears greatest have occurred
in the past few days and could be the prelude to a wider
offensive. Unless the Communists are prepared, how-
ever, to carry out major violations of their own cease-
fire which is scheduled to begin today at noon (EST), the
major thrust will be postponed until after the Lunar New
Year period ends on 2 February.
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North Vietnam: Hanoi may establish a limited jet
fighter capability in the southern part of North Vietnam.
On 24 January US fighters intercepted two MIG-21s
as they were attempting to land at Vinh. The field at
Vinh was not operable as of 5 January.
It is possible that the runway at Vinh has been re-
paired in the past three weeks. If Hanoi elects to re-
establish Vinh Airfield only limited facilities would be
required since Soviet-built MIG fighters are capable
of operating from primitive airstrips. No maintenance
or hangar facilities would be required if the field were
used onl io 1 refuelin� and rearmin
station.
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TOY SFRFI
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(continued)
5
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THE SUEZ CATNIAL AREA
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Egypt: Lgyptian operations, aimed at eventually
releasing the 15 cargo ships trapped in the Suez Canal
since last June, are scheduled to begin tomorrow. j
[An initial survey, using echo-sounding equipment
along the entire canal, is expected to take about a week.
After this the Egyptians plan to send divers down to
inspect sunken obstacles south of Ismailia. It may
take over two months actually to remove the trapped
ships
EAlthough Egypt has maintained that Israel's
agreement was not necessary in order to begin the re-
moval work and the Egyptians reject the idea of any
direct contact,
[The issue may not be completely resolved, how-
ever, and the situation along the canal is still dangerous.
Egypt apparently plans to carry out some exploratory
work in the northern section of the canal, while
Israel's "consent" appears to relate only to activities
in the southern portion. Although Israel might hesitate
to use force to stop useful, nonmilitary activities in
the canal, some kind of military clash is possiblej
{-Even if the survey operation goes without incident,
no significant improvement in the atmosphere is
likely, and the canal probably will remain closed to
commercial traffic for some time./
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*Brazil: ).71le Brazilian military, at least in the
vital southern part of the country, reportedly are on
alert. The reason for this is not clear but it could re-
flect an attempt to pressure President Costa E Silva to
crack down on politicians who are attempting to stir up
the populace, particularly the fiery Carlos Lacerda.
Some hard line military men--mainly Army colonels--
are known to be dissatisfied with Costa E Silva's lack of
firm leadership and tolerance of vocal political opposi-
tion, but there has been no previous indication that they
have had widespread military backing,_1/
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