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HEADQUARTERS
3d Antitank Battalion
3d Marine Division  (Rein),  FMF
c/o FPO San Francisco, California 96601
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                                                                                                                                               3100
                                                                                                                                               10 Mar66

From:          Commanding Officer
To:              Commanding General, 3d MarDiv  (Rein),  FMF

Subj:           Command Chronology, February 1966,  Submission of

Ref:            (1)   Journals
                      (2)   SITREP's
                      (3)   Company Operational Summaries, Period of 1-28 February 1966.

1.          In compliance with references  (a)  and  (b)  the Command Chronology
and enclosures  (1) through  (3)  are submitted.


                                                                                                    (Signature)
                                                                                                    BRUCE A. HEFLIN















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                                                                                                                                                                10 Mar 1966

PART I

1.          Reporting Unit - 3d Antitank Battalion  (Rein)

2.          Period covered - 1-28 Feb 1966

3.          Date of submission - 10 Mar 1966

4.          Commanding Officer - 1-28 Feb 1966
                                                                Lieutenant Colonel BRUCE A. HEFLIN

5.       Command Post - Republic of South Vietnam (AT987711)  Map SVN
                                                   Series L701, Sheet No. 6659 III and 6658 IV.






















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PART II

1.          Operational Data, including attachments

             a.  Designation/Location

                    (1)   3d Antitank Bn.  (Rein)  (Command Group)                    (DaNang TAOR)

                              (a)   Headquarters and Service Co.  (-)                              (DaNang TAOR)
                              (b)   "A" Co.  (-)  (Rein)                                                             (DaNang TAOR)
                                        2nd Plt "A" Co. 1st ATBn                                             (Hue Phu Bai TAOR)
                              (c)   "B" Co.  (-)  (Rein)                                                             (Chu Lai TAOR)
                              (d)   "C" Co.  (-)  (Rein)                                                             (DaNang TAOR)
                              (e)   "C" Co.  (-)  (Rein)  1st ATBn.                                  (Chu Lai TAOR)

             b.  Period covered by report:  1-28 February 1966

             c.  Name/Rank of Commanding Officer and Staff, or principle subordinates
             including T/O billet assignment.

BATTALION HEADQUARTERS

Commanding Officer................................................................LtCol B. H. HEFLIN
Executive Officer.....................................................................Maj O. R. EDMONDSON
                                                                                                                                   1Feb66
                                                                                                                                   Maj E. H. GRAHAM
                                                                                                                                   2-28Feb66
S-1/Adj......................................................................................2ndLt G. DOHSE
S-2............................................................................................Capt R. F. LANPHIER
                                                                                                                                  1Feb66
                                                                                                                                  Maj O. R. EDMONDSON
                                                                                                                                  2-28Feb66
S-3............................................................................................Capt R. F. LANPHEIR
                                                                                                                                  1Feb66
                                                                                                                                  Maj O. R. EDMONDSON
                                                                                                                                  2-28Feb66
S-3A.........................................................................................Unassigned
                                                                                                                                  Capt R. F. LANPHIER
                                                                                                                                  2-7Feb66
                                                                                                                                  Unassigned
                                                                                                                                  8-28Feb66
Liaison.....................................................................................Unassigned
S-4 Officer...............................................................................Capt S. R. STEWART
                                                                                                                                  1-22Feb66
                                                                                                                                  Capt K. E. SHARFF
                                                                                                                                  23-28Feb66
Supply Officer.........................................................................1stLt A. ANDAZOLA
Motor Transport Officer........................................................1stLt D. L. TAYLOR
Ordnance/Maintenance Officer.............................................1stLt B. M. MATHEWS
Communications Officer.........................................................MSgt J. S. KRAJEWSK
Medical Officer.......................................................................HMC G. K. LAW

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Headquarters and Service Co.  (-)

Commandant............................................................................1stLt. J. T. MATHEWS

Company "A" (-)  (Rein)

Commanding Officer...............................................................Capt. K. E. SHARFF
                                                                                                                                  1-22 Feb66
                                                                                                                                  Capt. S. R. STEWART
                                                                                                                                  23-28 Feb66
Executive Officer....................................................................Unassigned
1st Plt Commander................................................................. 2ndLt. P. F. MCALEER
1st Plt Co "A", 1st ATBn. Commander.................................2ndLt. D. C. RUMSEY, III
2nd Plt Co "A", 1st ATBn. Commander................................1stLt. D. J. NOONAN

Company "B" (-)  (Rein)

Commanding Officer...............................................................1stLt. M. H. CHANG
                                                                                                                                  1-7 Feb66
                                                                                                                                  Capt. R. F. LANPHIER
                                                                                                                                  8-28 Feb66
Executive Officer....................................................................1stLt. M. H. CHANG
                                                                                                                                  8-15 Feb66
                                                                                                                                  Unassigned
                                                                                                                                  1-7 and 16-28 Feb66
1st Plt Commander..................................................................SSgt. S. D. STEWART
2nd Plt Commander.................................................................1stLt. W. J. MAHER, Jr.

Company "C"  (Rein)

Commanding Officer...............................................................Capt. F. FIRING
Executive Officer....................................................................Unassigned
1st Plt Commander..................................................................SSgt. R. R. ABRAMONICZ
2nd Plt Commander.................................................................1stLt M. M. WOOD
3d Plt Commander...................................................................2ndLt D, K. CASWELL
3d Plt Commander...................................................................1stLt. J. J. MC COY
                                                                                                                                  1-5 Feb66
                                                                                                                                  Sgt. H. A. ZIMMERMAN
                                                                                                                                  6-28 Feb66

Company "C"  (Rein)  1st ATBn.

Commanding Officer...............................................................Capt. W. F. SNYDER
Executive Officer....................................................................Unassigned
1st Plt Commander.................................................................1stLt. H. T. SCHMIT
2nd Plt Commander................................................................1stLt. H. J. CONNOLLY
3d Plt Commander..................................................................SSgt. E. DAVIS




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          d.     Average monthly strength during the period.

                    (1)   3d Antitank Battalion (-)  (Rein)  Officers   -21          Enlisted -494
                              (a)  Headquarters and Service Company          9                               145
                              (b)  Company "A"                                                        3                                 90
                              (c)  Company "B"                                                        2                                 70
                              (d)  Company "C"                                                        4                                 99
                              (e)  Company "C", 1st ATBn                                 3                                 90

2.     Seqential listing of significant events.

          a.   Personnel  During the month there was one promotion to Staff
Sergeant and four to Private First Class.   Two men were awarded Purple
Hearts.  The Battalion sent 56 men on R&R.  Three men were medically evacuated
for non-battle reasons.  Six men were granted emergency leave to CONUS
and one man was granted humanitarian leave.  There was on WIA and one DAI.
There were ten Article 15 punishment awarded, and one summary court
martial.  One general court martial is pending.  During the month two
Officers, twenty six enlisted and three Corpsman were rotated to CONUS.
One Officer and sixty three enlisted were joined as replacements.

          b.  Administration  All companies were on Company Administration
during this period.  All companies employed the addressograph PAS system.

          c.  Intelligence  During the reporting period information concerning
the enemy and terrain was received from III MAG, 3d Marine Division, 9th
Marines and HOA VANG DISTRICT Headquarters.  On 8 February a Vietnamese
interpreter reported to the Battalion for duty.

          d.  Training  During the month of February training was held primarily on
company level.  The Battalion sent communications, ordnance/maintenance,
motor transport and administration contact teams to the various companies
for on the spot instruction.  In the DaNang enclave school was generally held
monthly by the same special section at the Bn. C.P. with representatives
of the two companies coming to the Battalion for school.
          The various sections within H&S company held schools within their
individual fields.  The motor transport section held school on "Distributors",
"Test equipment", "General questions and discussion of the M-35".  The
CommO conducted classes on the newly issued "AN/PRC- 25" as well as on
radio procedures.
          The S-2 conducted classes on security matters, "BLACK LANG",
discussion of classified matters on the phone and security of military
information.
          The OJT type of training was the primary method used during the month.
Special classes on the "Code of Conduct", troop orientation on U. S.
purposes and objectives were also held.
          Familiarization firing of individual weapons was accomplished.   FIREX's
of the ONTOS were held by two companies.  One company held a CPX.
Protective mask drill was held.

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          e.  Operations  On 1 February 1966 the Battalion was deployed
as follows:

          (1)   3d Antitank Bn (-)  (Rein)  is in general support of the 3d
Marine Division.

                    (a)H&S Co  (-)  (Bn CP)  located DaNang TAOR  (AT987711)

                    (b)  Company "A" (-)  (Rein) in direct support of the 3d Marine
                                                                                    Regiment.
                              1st Platoon Co "A" in direct support of the 1st Battalion,
                                                                         1st Marines.
                              1st Platoon Co "A" 1st ATBn in direct support of the 1st
                                                                         Battalion, 3d Marines.
                              2nd Platoon Co "A" 2st ATBn attached to the 2nd Battalion,
                                                                         1st Marines.

                    (c)   Company "B" (-)  (Rein)attached to the 1st Marine Regiment
                              1st Platoon Co "B" in direct support of the 1st Battalion,
                                                                         4th Marines.
                              2nd Platoon co "B" in direct support of the 1st Battalion,
                                                                         4th Marines.

                    (d)  Company "C"  (Rein)in direct support of the 9th Marine
                                                                         Regiment
                              1st Platoon Co "C" in direct support of 2nd Battalion,
                                                                         9th Marines.
                              2nd Platoon Co "C" in direct support of the 1st Battalion,
                                                                         9th Marines.
                              3d Platoon Co "C"   in direct support of the 9th Marines.
                              3d Platoon Co "B"   in direct support of the 3d Battalion,
                                                                          3d Marines.

                    (e)  Company "C"  (Rein)  1st Antitank Bn.  attached to the 7th
                                                                         Marines.
                              1st Platoon Co "C"  in direct support of the 1st Battalion,
                                                                          7th Marines.
                              2nd Platoon Co "C" in direct support of the 2nd Battalion,
                                                                          7th Marines.
                              3d Platoon Co "C"   in direct support of the 3d Battalion,
                                                                          7th Marines.

          (2)  DaNang Enclave

                    (a)  H&S Co (-)  During the reporting period S-2/S-3 was relocat-
ed in the Command Bunker.   The Company continued its various patrol
activity within the assigned patrol area.  Emphasis was placed on night
ambushes during this period.   On 6 February the Battalion reaction platoon,
all from H&S Company, was committed in defense of an area within the
9th Marine's TAOR.   On 9 February General LEE, Korean Marine Corps
Commandant, and BGen L. E. ENGLISH, USMC visited the Command Post.  On
14 February Col. Duong Van DO, Commander of the 7th Armored Cavalry
Reg. (ARVN) visited the Command Post.   On 15 February Congressman
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BUCHANAN from Alabama visited the Command Post.   On 21 February Congres-
sman COHELA from California along with Mr. W. J. DRIVER and Mr. W.
STINSON of the Veterans Administration, Washington, D. C. visited the
Battalion Command Post.  On 25 February BGen. STILES, USMC, ADC of the
1st MarDiv, escorted by MajGen K. B. MCCUTCHEON, USMC visited the
Command Post.    On 26 February the Chaplain of the 1st Korean Brigade
G-5 section visited the Command Post.   On 27 February Mr. Etienne
ANTHERIEU, correspondant for "FIGARO"  (Paris, France)  and Colonels
V. J. CROIZAT and T. MC. FIELDS visited the Command Post.   All of the
dignataries mentioned above, with the exception of Col. DO were taken
on a tour of the village of Yen Bac  (AT985708) by the Battalion Command-
er and his Civic Action Staff.  The Company provided security for the
visits.   On 18 February two Red Cross Girls visited the Battalion
Enlisted Men's Club and conducted audience participaton games.   The Bat-
talion was host for the Bobby  RYDEL show during the month.    On 20
February a squad was dispatched to (AT894718), the scene of two Co "A"
immobilized ONTOS.  The squad acted as a security force at the site until
they were made operational on 24 February.   The Ord/Maintenance section
sent a contact team to the location to make repairs on the spot.

                    (b)   Company "A" (-)  (Rein) continued in direct support of the
3d Marine Regiment.   The 1st Plt was in direct support of the 1st Bn.
1st Marines.   One section was with Co "A" 1/1  (AT921692), the other
section with 1/1 CP (AT954719).    On 3 February the section with "A"
1/1 conducted H&I fire into hills 122  (AT889668) and 36  (AT895695).
On 6 February the platoon continued H&I Fire from the vicinity of hil
41  (AT935663) int GS  (AT9365).   On 16 February the section with the 1/1
CP displaced with Co "C" 1/1.   On 18 February while attempting to break
trail in some dense underbrush, this section became disabled in a ravine.
They remained immobile at the site  (AT894718)  until recovery and repair
could be affected on 24 February with the assistance of the 3d Engineer
Bn. who built a road to the scene.    On 26 February one ONTOS from this
section fired two 106mm rounds from  (AT889727)  at a suspected VC
location at  (AT885705), no confirmed results.   The 1st Plt, Company "A"
1st ATBn was in direct support of the 1st Bn. 3d Marines.    One section
in support of Co. "D" 1/3, at LE MY conducted H&I indirect fire
from (AT900821) into an area bounded by (AT896835) to (AT905857).   On
10 February the same section supported a S&D mission with an infantry
platoon and two AMTRACS.   Twenty-four 106mm rounds were expended in
support of this mission into a 500 meter square, vicinity of  (AT873844).
No confirmed results.    On 11 February the section at LE MY supported a
S&D mission with "D" 1/3.   While on the mission they sealed two caves
located at  (AT869837)  and  (AT872836) utilizing 14 rounds of 106mm HEP-T.
On 16, 1, 18 and 20 February night H&I missions were fired into an area
north of the SONG CA DE river.    On 19 February the section at LE MY
augmented a fire mission laid on the Artillery and 81mm Mortar units
adjacent to the "D" 1/3 positions.    Target were located at  (AT870844),
(AT887844),  (AT870855) and (AT885856).   On 24 February the section at
LE MY fired fifteen 106mm rounds into GS (AT8884), no confirmed results.

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On 25 February the same section fired 62 106mm rounds at caves located
at  (AT883836),  (AT881834)  and  (AT877834), two cave entrances were
partially sealed.   On 27 February a reconnaissance was conducted with
"C" 1/3 in vicinity of Nam O Bridge  (AT935867), the purpose being a
switch of support of the section with "D" 1/3 to "C" 1/3 in early March
1966.   The section at the 1/3 CP acted as part of the 1/3 reaction
force during the month.

                    (c)   Company "C"  (Rein) continued in direct support of the 9th
Marine Regiment.   The 1st Plt. was in support of the 2nd Bn. 9th Marines.
The month commenced with on section with Co. "F" 2/9 at YEN NE (AT988665),
and one section at the platoon CP.   (AT990678).   On 8 February one ONTOS
from the platoon CP location was dispatched to evacuate a wounded Marine.
The ONTOS, then working with Co. "E" 2/9 was taken under VC small arms
fire.   The crew returned the fire with no confirmed results, The VC broke
contact.   The ONTOS remained with "E" 2/9 after this mission.   On 14
February the section with "F" 2/9, while supporting an infantry platoon,
made contact with the VC at HA DONG  (AT999643) and fired fifty .50 cal
spotting rounds with no confirmed results.    While on the mission three AP
mines were detonated and one Tank trap was encountered, with no friendly
losses or damage.   On 18 February the ONTOS with "E" 2/9, reinforced by
one ONTOS from the 3d Plt. were given the mission of aiding a patrol
pinned down by the enemy at  (BT009632).    Five 106mm, five .50 spotting
rounds and 100 rounds of .30 cal machine gun were directed at the VC
who withdrew.    On 28 February one ONTOS with "M" 3/3 destroyed VC prepared
positions at  (AT963649).   The same day the section with "G" 2/9 and  a
section from the 3d Plt. test fired their weapons in the vicinity of HA
DONG bridge.
          The month ended with one section  (made up of one ONTOS from 1st Plt.
and one ONTOS from 3d Plt. Co "B")  with "M" 3/3, at AN TRACH (1), one
section 1st Plt. with "G" 2/9, and one section (made up of one ONTOS
from the 1st Plt. and one ONTOS from the 3d Plt.)  with "H" 2/9 and one
ONTOS 1st Plt. at the 2/9 CP.   The 2nd Plt. started the month in direct
support of the 1st Bn. 9th Marines.   One section was at TRA KHE (3)
(BT073669) and one section at MAN QUAN  (2)  (BT044688).   On 6 February
the section at TRA KHE  (3) supported an infantry sweep of TRA KHE (2),
with no VC contact.   One 8 and 9 February the sections changed locations,
one to NGAN TRUNG (3)  (bt65643) with Co. "D" 1/9 and the other section
to VIEM DONG (BT0656d3) with Co. "A" 1/9.   On 11 and 13 February the
section with "A" 1/9 participated in a sweep and an ambush with no VC
contact.   On 17 February the section at VIEM DONG participated in a
night patrol in the vicinity of  (BT09653) and (BT094643), no VC contact.
Between 15 and 17 February the 3d Bn, 9th Marines replaced the 1st Bn,
9th Marines in the left sector of the 9th Marines TAOR.   The 2nd Plt.
switched support to 3/9 for the remainder of the month.   On 18 February
the section at NGAN TRUNG (3) conducted a FIREX.   On 20 February the same
section , now with Co. "M" 3/9, engaged in a fire fight with VC at
(BT052654), destroying several houses at that location, no confirmed
VC casualties.   On 26 February the section at VIEM DONG, now with "L"
3/9 participated in a sweep at (BT108637), no contact.   On 27 February
the entire platoon participated in OPERATION HUNTER in the vicinity of
PHONG HO village, no contact.     One 28 Februry the Plt. was pulled back
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to the platoon CP  (BT066719) for maintenance.    The 3d Plt. Co. "B" was
in direct support of the 3d Marines.   The month started off with
one section at AN TRACH (1)  (AT972662) and one section on hill 22
(AT954667).   The section from the 3d Plt. reinforcing this Plt. was on
hill 55 (AT971620).   On 3 February on ONTOS from the section on hill
22 fired six 106mm rounds into a village from which they were receiving
VC small arms fire.   Two armed VCs were later captured in the area.   The
section at AN TRACH (1) participated in an operation on 7 and 8 February.
On the first day they returned 160 cal .30 machine gun rounds at VC who
were firing at them.   On the following day they fired four `106mm and 15
cal .50 spotting rounds at three VC located at (AT968646) who were firing
automatic weapons at them.   One VC WIA (possible) resulted.   The section
on hill 22 participated in a company sized sweep from their position, no
confirmed results.   On 11 February the section at AN TRACH (1) while
supporting Co. "M" 3/3 returned VC fire from the rear and flank with 6
106mm, 210 cal. 30 machine gun and ten cal. 50 spotting rounds.   One VC
KIA and two VC WIA (possible) resulted.   On 18 February the same section
supported "M" 3/3 again and captured one VC at  (AT977644).   On 20 Feb-
ruary the section again participated in a mission with "M" 3/3, and one
ONTOS detonated an AP mine that was positioned over a 105mm artillery
round.   The artillery round failed to detonate, no vehicle damage resulted
and no friendly WIA were sustained.   On 28 February the section an AN
TRACH (1) with "M" 3/3 now comprized of one ONTOS from 3d Plt. and one
ONTOS from the 1st Plt. went on a S&D mission.   No VC contact.   The month
ended with one section with "L" 3/3 on hill 22, one section at the Plt.
CP  (AT974706) and one section  (made up of one ONTOS from 3d Plt. and one
ONTOS from the 1st Plt.) with "M" 3/3.   The 3d Plt Co. "C" continued in
direct support of the 9th Marines.   The platoon was used to reinforce
the 1st Plt. ad the 3d Plt. Co. "B" 3d ATBn.    (OPCON this company).
The month started with one section with Co. "I" 3/3 on hill 55 (AT971620)
and the other section with Co. "E" 2/9.   On 1 February the section with
"I" 3/3, while performing escort duties sustained on WIA  NE.   An
infantryman detonated an AP mine and the fragments caused the WIA.   On
5 February this section fired seven 106mm, eight .50 cal spotting rounds
at two VC in a camouflaged marsh boat in support of a pinned down patrol.
One VC WIA was captured, and the other VC escaped.   On 6 February this
section engaged some VC in support of another patrol from their positions
on hill 55.    No confirmed enemy casualties.   One ONTOS from the section
with "E" 2/9 participated in the action shown under 1st Plt.   On 8
February.   On 15 February the section on hill 55 expended four 196mm,
four .50 cal spotting rounds along with two M-26 fragmentation grenade
in support of an "I" 3/3 patrol.   On 16 February one ONTOS was with-
drawn from the section in support of "E" 2/9, leaving a section made up
of one ONTOS from the 1st Plt. reinforced by one ONTOS from the 3d
Platoon.   On 17 February Co "H" 2/9 replaced Co. "E" 2/9 on position
and the composite section mentioned above remained at the site in support
of "H" 2/9.   On 20 February the section with "I" 3/3 on hill 55 took a
group of VC at  (AT966618) under fire with four 106mm and five .50 cal
spotting rounds.   No confirmed VC KIA.   On 21 February the same section
expended four M-26 grenades in the destruction of VC tunnels.   On 24
February they participated in a patrol with "I" 3/3, no VC contact.
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month ended for this platoon with one section on hill 55 with "I" 3/3,
one ONTOS reinforcing an ONTOS from the 1st Plt with "H" 2/9 (BT023654)
and one ONTOS at the 1st Plt CP  (AT990678).   One remains at the 3d Plt
Co "B" CP at  (AT974706).

          (3)   Chu Lai Enclave

                    (a)   Company "B" (-)  (Rein) attached to the 1st Marine Regiment.
The 1st Plt. was in direct support of the 1st Bn. 4th Marines.   They
maintained defensive positions at the 1/4 at the 1/4 CP  (Rear).   On 4 February
they displaced to the 1/4 CP  (Forward) on hill 69  (BT464073).    On 5
February the platoon reinforced by the 2nd Plt. participated in convoy
escort duty for "D" 1/4 and the Bn. Hq group in support of OPERATION
DEAD END.   The convoy proceeded along highway One and when the troops
dismounted for the operation they assumed blocking positions.    After the
operation that evening the 1st Plt. escorted "M" 3/7  (OPCON 1/4)  and
the 1/4 Hq group back to their area.   On 18 February the platoon provided
escort duty for "M" 3/7 S&D mission in the vicinity of hill 54  (BT396145).
One ONTOS destroyed a trench line at GS  (BT413) on the 19th of February.
At the conclusion of the S&D mission on 20 February the platoon retreated
and returned to their defensive positions.   Four incidents of sporadic
sniper fire were encountered during the three day mission.   The platoon
concluded the month located on the 1/4 MLR, located at GS  (BT5209) and
(BT5210).   The 2nd Plt.  was in direct support of the 1st Bn. 4th Marine
Regiment.   They started the month with one section on hill 69  (BT464073)
with the 1/4 CP  (Forward).   One section was located a (BT465070).   On 2
February one ONTOS fired an indirect H&I mission from a defilade position
at  (BT461073).   The target was at  (BT424049).   With the Plt. Cmdr acting
as FO excellent target coverage was obtained.   On 5 February the platoon
reinforced the 1st Plt. on OPERATION DEAD END.    Upon completion of the
operation they escorted "D" 1/4 back to their positions.   On 14 February
one section accompanied "D" 1/4 to  (BT441099) a site where an ARVN platoon
was surrounded by VC.   Upon arrival at the scene one ONTOS was brought
under small arms fire by the VC.   Fifty rounds of .30 cal machine gun fire
was returned, with no confirmed results.   On 18 February one section
provided convoy escort duty for an infantry platoon and an engineer
unit to  (BT411128)  and  (BT396145).    Later that same day this section
now with "D" 1/4 linked with the 1st platoon escorting "M" 3/7 and
supported them in a joint S&D mission of the area surrounding hill 54
(BT396145).   On 10 February four VC crossing a ridge line were fired on
by one ONTOS.   Later on the VC were observed emerging from behind the hill,
they were taken under fire by artillery.   The results were two VC KIA
(Possible).   On 20 February the section withdrew with "D" 1/4 back to
hill 69.   On 23 February one section escorted "D" 1/4 to  (BT419123).  On
28 February the section again escorted "D" 1/4, this time to hill 54
(BT396145).

                    (b)   Company "C"  (Rein)  1st ATBn.  attached to the 7th Marines
Regiment.   The Hdqtrs Plt. continued to man two M-60 machine guns at
(BT560048).   This is in support of the 7th Marine Regiment's Beach
Security Plan.
                                                                                                                                            (MARKED OUT)
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DECLASSIFIED


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3/ORE/bks
10 Mar66

The 1st Plt.  was in direct support of the 1st Bn. 7th Marines.   One
section manning MLR positions at  (BS605995)  with "B" 1/7, the other section
was at  (BS568997)  with "D" 1/7.   The Platoon Headquarters was displaced
from  (BT560048)  to  (BT584016), the 1/7 CP location.   The 2nd Plt. was in
direct support of the 2nd Bn. 7th Marines.   One section was manning the
MLR at  (BT495036)  and the other section on the MLR at  (BT504030).  The Plt.
Hdqtrs was displaced from  (BT560048)  to  (BT509028), the 2/7 CP location.
On 26 February a FIREX (indirect fire) was conducted.   An artillery officer
acted as FO, the results were considered excellent.   The 3rd Plt. was in
direct support of the 3d Bn. 7th Marines.   One section was manning the
MLR at  (BS549996) and the other section on the MLR at  (BT528002).   On 3
February the section located at  (BS549996) fired 75 rounds of cal .50
from  (BS547995), into suspected VC locations at (BS552989),  (BS553991),
and (BS549989), no confirmed results.   On 3 February the other section
conducted a H&I Fire mission into GS  (BS5198) and (BS5298).   23 106mm
and 60 .50 cal spotting rounds were expended.   No confirmed VC casualties.

          (4)   Hue Phu Bai Enclave

                    (a)  2nd Platoon Co. "A" 1st AT Bn.   Attached to the 2nd Battalion
1st Marines.   One ONTOS was deployed nightly for the 2/1 security element.
On 10 February the platoon conducted H&I fire from  (YD900072) into an
impact area 4-6000 meters southwest, no confirmed VC casualties.   A
total of 184 106mm rounds were expended.   On 26 February the platoon was
totally comitted to an operation within the 2/1 TAOR.   As the operation
was still in effect as the month ended no detailed information is available
at this time.   Spot information from the 3d Marine Regiment indicates that
no casualties have been reported as of the end of February.

          f.   Communications and Electronics  During the month of February the
Communication Platoon provided the normal command post communication
functions.   The Comm Platoon was inspected on 18 February as part of the
Commanding General's Inspection of AT Battalion.   A Battalion Radio Net
was established with "B" Company in Chu-Lai to back up the telephone
system and to handle overflow traffic.   This net operate twice daily
6 days a week.

          g.   Logisitics.  The lack of track continues to present a major pro-
blem.   Outstanding requistions for 360 sections of track are on hand, and
forty sections are expected in on 9 March.   Three hundred sections have
been placed on priority 02 requistion and aggressive follow up action
will be taken.   Alternators have also became a serious problem, with
three ONTOS deadlined for lack of alternators.   Advance information
indicates shipment of 5 alternators in the near future.   Ordnance/Maint-
enance.   A total of ten ONTOS were deadlined and eight ONTOS were
removed from deadline during the month.   Quarterly Services were continued
with four ONTOS receiving this service.   Nine contact teams were dis-
patched during the month to provide services and assist in recovery
programs.   On 15 February an Unsatisfactory Equipment Report was sub-
mitted to FMF? recommending modification of the Indicator, Traversing
(MARKED OUT) and 17 February the Commanding General's Inspection
Team conducted Engineer and Ordnance Equipment Inspections.

                                                                                                                                            CONFIDENTIAL
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DECLASSIFIED
DECLASSIFIED

(MARKED OUT)

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                                                                                                                                                                10 Mar66

Motor Transport.  298 vehicles were dispatched from Battalion Head-
quarters for a total of 8640 miles.   Acceptance test were begun on 26
February for 16 M-422A1 vehciles received that date.   During the month
39 work orders were opened and completed.   Three M-422 vehicles were
coded "X" and turned in.   Supply.   In February 622 requistions were
submitted and 170 filled for a percentage of 25%.   Major items of
equipment received were 15 road wheels and 16 M-422A1 Mighty Mites.
Requests were submitted to CMC on 23 February for special allowances
of (1) switchboard, telephone, SB-22 and (6) Radio Sets,  AN/PRC-47.
A request for a special allowance of (6) M-79 grenade launchers was
submitted to CMC on 23 February.

          h.   Civic Action.   The Battalion Civic Action Team was very active
throughout the month of February.   The team medically treated 191
adults adn 343 children with 641 treatments administered.   Over half
the treatmens fell into the "Upper Respiratory Infection" and "Disease
of the Skin" category.   During the month 44,000 Piasters were contributed
to the Vietnamese economy in payment for laundry services rendered.   The
hamlet of Yen Bac  (AT985708) received approximately 18, 816 pounds of
garbage and liquid waste from the Battalion Mess Hall for Animal Feed.
During the week of 1 - 5 February the Battalion Civic Action Team visited
the hamlet of Yen Bac (AT985708) five times.   Medical assistance was
given on each occasion.   The better part of the week was spent working
on house number signs for future posting at the sub-hamlets of Yen Bac
(AT985708).   Further work was accomplished on the construction of a toilet
near the aid station at Yen Bac  (AT986708).
During the week of 6 - 12 February the Battalion Civic Action Team visited
the hamlet of Yen Bac  (AT985708) six times.   Medical assistance was given
on each visit and fifty pounds of clothing were passed out to 73 people
of the hamlet.   The Battalion Commander held a conference with the hamlet
and sub-hamlet chiefs.   They discussed the acts of vandalism that have
occcured near the Battalion Aid Station and its undesirable effect upon
the civic action program.   A bunker was constructed next to the aid
station at Yen Bac  (AT985708) as a defensive measure.   The inhabitants
of sub-hamlet #5  (AT985708) constructed a barber shop.   Haircuts cost
20 piasters.   The census program was completed at sub-hamlet #5.   The
sub-hamlet consists of fourteen families and twenty-five are males.   Five
of the male population are of draft age.   During the week of 13-19
February the hamlet of Yen Bac  (AT985708) was visited six times and
meidcal assistance given on each occasion.   A 100 lb. sack of corn was
given to Mr. Nguyeg LUC of sub-hamlet #5 for his assistance in the
construction of the aid station at Yen Bac.   One truckload of scrap
lumber was given to the hamlet for use in their homes.   Four 100 lb.
bags of rice millet were given to the hamlet in compensation for services
rendered in the cutting of brush around the aid station at Yen Bac.
GySgt ROSS of the Combat Information Bureau, DaNang, Vietnam, visited the
hamlet of Yen Bac with the Battalion Civic action team.    The purpose of
GySgt ROSS' visit was to produce  film showing civic action teams at
work, and the results of such a program.   During the week of 20 - 26
February the hamlet of Yen Bac (AT 985708) was visited six times and
medical assistance given on each occasion.   During this period the

                                                                                                                        (MARKED OUT)
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DECLASSIFIED
DECLASSIFIED

(MARKED OUT)
(MARKED OUT)

3/ORE/bks
10 Mar66

farmers of Yen Bac hoisted for the first time a South Vietnamese flag.
The occasion for this event was the anniversary of the dead.   During
the week of 27 - 28 February the hamlet of Yen Bac  (AT985708) was
visited twice.   On one occasion medical assistance was administered.
On truck load of scrap lumber was given to the hamlet for use in their
homes.























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                                                                                                                                            (MARKED OUT)

DECLASSIFIED
DECLASSIFIED



COMPANY "B"
3d Anti-tank Battalion  (Rein)
3d Marine Division  (Rein )  FMF
FPO San Francisco 99602


1.    Organizational Data

          a.  Designation/Location.  During the reporting period CoB (-) (Rein)
3dATBn was located at  (BR 533089).   The 1st Platoon located at (BT 524087)
continued in direct support of the 1st Battalion, 4th Marines.   The 2nd
Platoon located at (BT 464073) continued in direct support of the 1st
Battalion, 4th Marines.
          b.  Period Covered.  1 February - 28 February 1966.
          c.  Name/Rank of Commanding Officer, Staff and principal subordinates.
               T/O billet assignments.
                                                                                                              CO          Capt LANPHIER
                                                                                                              XO          Unassigned
                                                                                           1stPlt Cmdr          SSgt STEWART
                                                                                           2ndPlt Cmdr       Lt MAHER
          d.  Average monthly strength during the period.
                                                                                USMC          USN                                                                                                                                     Officers                                                        2                0
                                                                                USMC          USN
                Enlisted                                                     71                2

2.   Sequential listing of significant events, as they relate to:

          a.   Personnel.  1stLt CHANG was relieved as commanding officer by Capt
LANPHIER on 8 February 1966.
          b.   Operations and Training.  The ONTOS platoons supporting the 1st
Battalion, 4th Marines participated in five search and destroy and
escort operations and two H&I fires.   Training was directed towards im-
proving communication, direct and indirect fire procedure and tactical
driving.   In addition, classes were conducted on General Military subjects.
During this period all members of the company participated in familiarization
firing of their T/O weapons and a gas mask drill.
          c.   Logistics.  During the reporting period there were 85 Priority
12 requistions submitted and 53 Priority 12 requistions and 15 priority
05 requistions received.   At the end of the reporting period there are 399
priority 12, 51 Priority 05 and 7 Priority 02 requistions outstanding.














DECLASSIFIED

          

DECLASSIFIED


Detailed Chronology of Events

2 February    The 2ndPlt Cmdr acting as forward observer used one Ontos to
                              demonstrate the indirect fire capability of the M50A1.   The
                              Ontos, in a defilade firing position at (BT 460173), fired 10
                              rounds of 106mm at (BT 424049).   Two rounds were used in ad-
                              justing fire with the succeeding eight rounds on target with
                              good coverage and excellent accuracy.

5 February    The 1st and 2nd Platoons participating in "Operation Deadend"
                              departed a 0200H providing convoy escort to CoD, 1st Battalion,
                              4th Marines and the Bn Hqtrs group.   At the objective area the
                              two platoons set in blocking positions, dispersing approximately
                              150 meters apart, between  (BT 431108) and  (BT 448090).   The
                              operation secured at 1500.   The 1st Platoon provided escort for
                              CoM, 3d Battalion, 7th Marines and 1st Battalion, 4th Marines
                              Hqtrs Group.   The 2nd Platoon provided escort for CoD, 1st
                              Battalion, 4th Marines.

14 February  At 0230H, the light section of the 2nd Platoon departed Hill 69
                              with a platoon from CoD, 1st Battalion, 4th Marines to
                              (BT 441099).   The mission was to assist an ARVN Platoon re-
                              portedly surrounded by VC.   Upon arrival at 0345H, Vehicle 24
                              received small arms fire.  The Ontos returned 50 rounds of 30
                              caliber machine gun fire with unknown results.   No other contact
                              reported.   The light section remained in position until 0700 at
                              which time they returned to their positions on Hill 69.

18-20
February          At 0630, the light section of the 2nd Platoon departed Hill 69 to
                              provide escort for one infantry platoon and one engineer
                              platoon, and moved to  (BT 411128)  and (BT 405137).  At 1530H
                              the 1st Platoon with CoM, 3d Battalion, 7th Marines departed 1st
                              Battalion, 4th Marines C.P. to link up with the light section
                              of the 2nd Platoon and CoD,1st Battalion, 4th Marines for a
                              search and destroy operation, "Steel Gate", in the areas sur-
                              rounding Hill 54.   At 190900H four VC were taken under fire as
                              they crossed a ridgeline  (BT 376126).   Six rounds of 106MM Hep-T
                              were fired by Vehicle 25 at the the top and reverse slope of the
                              ridgeline with unknown results.   At 191930H, one ONTOS from the
                              1st Platoon fired six rounds of 106MM Hep-T H&I fire on a trench
                              line  (BT 4313) destroying the trench.   At 201230H the 1st and
                              2nd platoons withdrew and returned to their defensive positions.

23 February  At 0530H the light section of the 2nd Platoon escorted a truck
                              convoy to  (BT 419123) where CoD, 1st Battalion, 4th Marines
                              disembarked.   The light section escorted the return of the convoy
                              to Hill 69 at 0740H.

28 February  At 0630H the light section of the 2nd Platoon escorted CoD,1st
                              Battalion, 4th Marines to Hill 54 and set up in defensive
                              positions for road security.   At 1330H, three VCS were sighted
                              at  (BT 4011149) moving through a confirmed mined area.   Four
                              rounds of 106MM Hept-T were fired to scare the VCS from the area
                              since it could not be determined that the Vietnamese were in fact
                              VC.

                                                                                                                                                                Enclosure (1)

DECLASSIFIED