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HEADQUARTERS
3d Antitank Battalion
3d Marine Division (Rein) FMF
FPO San Francisco 96602
                                                                                                                                                      3
                                                                                                                                                      5750
                                                                                                                                                      Ser:  041-66
                                                                                                                                                      10 June 1966
CONFIDENTIAL

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

Subject:                    Command Chronology, May 1966; submission of

Ref:                    (a)  MCO 5750.2
                              (b)  DivO 5750.1

Encl:                (1) Command Chronology
                              (2) Staff Journals
                              (3) SITREPS

1.          In compliance with the references, enclosures (1) through
(3) are submitted.          

                                                                      (Signature)
                                                                      BRUCE A. HEFLIN                                                  

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CONFIDENTIAL                                                                                                    10 June 1966


PART I

1.          Reporting unit - 3d Antitank Battalion, 3d Marine Division, FMF

2.          Period covered  - 1 - 31 May 1966

3.          Date of submission  - 10 June 1966

4.          Commanding Officer  - 1 - 31 May 1966
                                                             Lieutenant Colonel BRUCE A. HEFLIN, USMC

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


                                                                      


















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PART II

1.          Operational Data, including attachments:

              a.          Designation/Location

                              (1)  Headquarters and Service Co.  (-)          (DANANG TAOR)
                              (2)  "A" Co. (-) (Rein)                                           (DANANG TAOR)
                              (3)  "B" Co. (-) (Rein)                                           (PHU BAI TAOR)
                              (4) "C" Co.  (Rein)                                                (DANANG TAOR)
   
              b.          Period covered by report: 1  31 May 1966

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

BATTALION HEADQUARTERS

Commanding Officer                                                                        LtCol B.A. HEFLIN
Executive Officer                                                                                Maj E. H. GRAHAM
S-1/Adj                                                                                                      2ndLt G. DOHSE
S-2                                                                                                               Maj E. R. LARSON
S-3                                                                                                               Maj E. R. LARSON
S-3A                                                                                                          Unassigned
Liaison Officer                                                                                    Unassigned
S-4                                                                                                               Capt. K. E. SHARFF
Supply Officer                                                                                     2ndLt R. U. BOKELMAN
Motor Transport Officer                                                               1stLt D. L. TAYLOR
Ordinance/Maintenance Officer                                              SSgt C. P. MC DONALD
Communications Officer                                                                2ndLt M. C. SCHROFDER
Medical Officer                                                                                  HMC G. K. LAW, USN

Headquarters and Service Co. (-)

Commandant                                                                                          1stLt B. H. MATHEWS

Company "A" (-)  (Rein)

Commanding Officer                                                                        Capt S. R. STEWART
Executive Officer                                                                             Unassigned
1st Plt Commander                                                                           SSgt C. E. WEBB
2nd Plt Commander                                                                          1stLt M. P. KINGSTON
1st Plt, Co. "A", 1st ATBn Commander                               2ndLt R.W. BERNARD


                                                                                                                                  ENCLOSURE (1)
                    
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Company "B" (-)  (Rein)

Commanding Officer                                                                                           Capt D. C. SATCHER
Executive Officer                                                                                                Unassigned
2nd Plt, Co "A", 1st ATBn Commander                                                  1stLt D. J. NOONAN
3d Plt, Co "A", 3d ATBn Commander                                                     2ndLt M. H. PONDER
3d Plt, Co "B", 3d ATBn Commander                                                     2ndLt T. J. MEEHAN

Company "C" (Rein)

Commander Officer                                                                                            Capt F. FIRING
Executive Officer                                                                                                1stLt M. M. WOOD
1st Plt Commander                                                                                              SSgt R. R. ABRAMOWICZ
2nd Plt Commander                                                                                             2ndLt A. W. HOOF
3rd Plt Commander                                                                                              2ndLt D. K. CASWELL

                    d.   Average monthly strength during the period:

                                                                                                              Officers          Enlisted          USN Enl
                              (1)  3d Antitank Battalion                              20                      413                    13
                                        (a)  H&S Company                                   9                      165                      7
                                        (b)  Company "A"                                    3                        84                      2
                                        (c)  Company "B"                                    4                        87                      2
                                        (d)  Company "C"                                    4                        77                      2

2.   Sequential listing of significant events.

          a.   Personnel and Administration.   During the month there
was one promotion to Staff Sergeant, four to Corporal, 13 to
Lance Corporal and six to Private First Class.  The Battalion sent
39 men on R&R.   There were three enlisted men medically evacuated
for non-battle reasons.  One man was granted humanitarian leave
to CONUS.  There were three men KIA and nine men were WIA.  In
addition three men were wounded accidental injury.  Four Article
15 punishments were awarded; one by the Bn Cmdr, and one by
the Cmdr. of H&S Co, and two by the Cmdr. of Company "A".  Two
Officers and 41 Enlisted men were rotated to CONUS.  Twenty-
one Enlisted men were joined as replacements.  One Officer was
awarded the Navy Commendation Medal, with combat 'V".  All
Companies were on Company Administration during this period, and
employed the Addressograph PAS system.

          b.     Battalion Command Post Avtivity

                    (1)    On 6 May MajGen W. B. KYLE, CG, 3d Marine
Division reviewed a Battalion formation and awarded the Navy
Commendation Medal with Combat "V" to Captain R. F. LANPHIER,
USMC, formerly Commanding Officer, Company "A", 3d ATBn.  The
Commanding General also delivered a promotion warrant to SSgt
G. H. ROBERTS, USMC.  Afer the awards presentation General
KYLE officially dedicated the new Battalion Mess Hall and was the
honored guest for the evening meal.
                                                                                                                        ENCLOSURE (1)
                                                                                                                        
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                    (2)   Other important visitors to the Battalion
Command Post during the month included:

8 May

Congressman R. P. GRIFFIN, R-MICHIGAN
Congressman J. R. MONAGAN, D-CONNECTICUT
LtGen V. H. KRULAK, USMC, CG, FMFPAC
MajGen W. B. KYLE, USMC, CG, 3d Marine Division
BrigGen L. E. ENGLISH, USMC, ADC, 3rd Marine Division
Col E. H. SIMMONS, USMC, Commanding Officer, 9th Marines

13 May

The Honorable T. G. MORRIS, Assistant Secretary of Defense for
Manpower
Congressman H.  H. CALLAWAY, R-GEORGIA
Congressman D. RUMSFELD, R-ILLINOIS
Mr. R. A. BARTIMO, Assistant Federal Counselor for Manpower
LtGen J. V. EDMONDSON, USAF, Director for Administrative Services
of the Office of the Assistant Secretary of Defense.
LtGen L. W. WALT, USMC, CG, III MAF
BrigGen D. H. MC GOVERN, USA, J-1, MACV
BrigGen L. E. ENGLISH, USMC, ADC, 3d Marine Division

18 May

Col H. A. HAYES, Jr., USMC, Commanding Officer, 3d Marines.

30 May

Col C. BOYD, USMC, III MAF Inspector
Col J. L. MAHON, USMC, G-1, III MAF

                    (3)    Two Red Cross ladies visited the Battalion C.P.
on four occasions during the month to conduct audience
participation games in the Enlisted Men's Club.

                    (4)    On 25 May an Armed Forces Combat Motion Picture
Team composed of Marine Corps personnel arrived in the C.P.
for a four day assignment to photograph the Civi Action programs
in YEN BAC Hamlet (AT985708).

                    (5)    On 30 May the 3d ATBn provided one rifle platoon
with Platoon Commander to participate in a III MAF Memorial Day
ceremony at the FLSG Parade Ground.

                                                                                                              ENCLOSURE (1)

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                              (6)    Continued progress was made in the improvement
of the physical facilities of the 3d ATBn Command Post.  Ad-
ditional strong-back troop living spaces were constructed and
overhead fans were installed in the Battalion Mess Hall and
Staff NCO Club.  Trenching throughout the C.P. was initiated
in preparation for the rainy season.

                              (7)    Improvements were made to the Battalion C.P.
defensive perimeter during the month, with rebuilding of
two of the seven automatic weaons bunkers, laying of additonal
protective wire, and construction of additional sandbagged
protective personnel shelters.

          c.   Intelligence  Information concerning the enemy and
terrain was received from MACV, III MAF, 3d Marine Division,
9th Marines and HOA VANG District Headquarters.  Aerial photo
coverage of the Battalion patrol area of responsibility
was provided by VMCJ-1.   During the reporting period four Viet
Cong Suspects were apprehended in the vicinity of YEN BAC Hamlet
(AT985701)  and evacuated to higher headquarters for interrogation.
Of this total, three were subsequently released, and one VCS is
still being held for further interrogation.   In addition, three
suspects apprehended during the latter part of April 1966 were
cleared and released during the reporting period.

          d.   Training.    Operational committments and a lengthy period
of alert (15-25 May) which required major elements of the
Battalion to be on 15 min. and two hour standby, curtailed
training during the month of May.  On-the-job training in all
occupational fields, and field familirization firing of all
organic weapons characterized the training which was accomplished.
All ONTOS Companies conducted field firing of the 106mm recoil-
less rifles, .50 caliber spotting rifles, and .30 caliber
machineguns at least once during the month.  Headquarters and
Service Company conducted familirization firing of the M-60
machinegun, M-14 rifle, and .45 caliber pistol at the HOA CAM
Regional Forces Training Center (AT970713).  Technical training
was conducted by contact teams of the Battalion Communication/
Electronics and Ordance Maintenance Sections at all gun companies,
stressing organizational maintenance.  The Battalion Motor
Transportation Section conducted weekly vehicle operation and
maintenance schools for all wheeled vehicle drivers of companies
in the DANANG TAOR.  A previously scheduled waterproofing
course for communications equipment, and wheeled and tracked
vehicles was cancelled because of operational commitments.
Formal schools attended included 25 Marines at the 3d Engineer
Battalion two day course on "VC Mines, Booby Traps and U. S. Mines",
two men to the 3d FSR Basic Intantry Weapons Repair course on
Okinawa, and one man to the Basic Ammunition Technican course,
also conducted by 3d FSR on Okinawa.  The Operations Chief
attended a Psychological Warfare seminar at Headquarters, 3d
Marine Division.

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          e.    Operations   The 3d Antitank Battalion continued to
provide general support to the 3d Marine Divison in the DANANG
and PHU BAI TAOR's.  On 1 May 1966 dispositions and support
roles of units of the Battalion were as follows:

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

                              (a)          H&S Co (-)  (Bn CP) located DANANG TAOR.
                    
                              (b)          Company "A" (-)  (Rein)  in direct support of
                                             3d Marine Regiment. (DANANG).

                                             1st Platoon Co "A" in direct support of the
                                             3d Marine Regiment.

                                             2nd Platoon Co "A" in direct support of the
                                             2nd Battalion, 3d Marines.

                                             1st Platoon Co "A", 1st ATBn in direct support
                                             of the 1st Battalion, 3d Marines.

                              (c)           Company "B"  (-)  (Rein)  in direct support of the
                                             4th Marine Regiment.   (PHU BAI).

                                             2nd Platoon Co "A", 1st ATBn. in direct  support
                                             of the 2nd Battalion, 1st Marines.

                                             3d Platoon Co "A", 3d ATBn in direct support of
                                             the 1st Battalion, 4th Marines.

                                             3d Platoon Co "B", 3d ATBn in direct support
                                             of the 1st Battalion, 1st Marines.

                              (d)          Company "C" (Rein)