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 Operation Oahu

DECLASSIFIED
Authority NND873541
By MD Date 4/7/01


                         HEADQUARTERS
                         1st BRIDGADE
                         25th INFANTRY DIVISION     
                         APO San Francisco 96225     

AVDCFB-A                                                                                                                              29 September 1966

SUBJECT: Combat Operations After Action Report



TO:    Commanding General
          25th Infantry Division
          ATTN:  AVDCOP
          APO 96225



     1. Name:     Operation OAHU
     2. Dates:     1 August-31 August 1966
     3. Location:     Tay Ninh Province, RVN
     4. Control HQ: 1st Brigade, 25th Infantry Division
     5. Reporting Officer:      Colonel William B. Sandlin, Jr.     
     6. Task Organization:     
a. Brigade Control:
HHC, 1st Bde (-)
Trp B, 3d Sqdn, 4th Cav (-)
FASC Plat (-), 25th Sig
Plat (-), 25th MP
ELM, 25th MID
ELM, 16th RRU
b. 4th Bn, 9th Inf (-)

c. 2d Bn, 14th Inf (-)

d. 4th Bn, 23rd Inf
DOWNGRADED AT 3 YEAR INTERVALS DECLASSIFIED AFTER 12 YEARS
DOD DIR 5200.10
AVDFB-A                                                                                                                            29 September 1966
SUBJECT:     Combat Operations After Action Report

a. 1st Bn (Mech), 5th Inf

7. Support Forces.
a.   7th Bn, 11th Arty (-). B Brty, 7th Bn, 11th Arty attached to 2d Bn, 14th Inf for movement departed Cu Chi on 1 Aug for Tay Ninh Airfield (West) pending arrival of main body forces. B Btry, 3d BN, 13th Arty attached to 7th Bn, 11th Arty (-) closed Tay Ninh on 6 Aug. There were 3, 450 rounds of 155mm howitzer ammunition expended during 1,063 support and H&I missions and 16,130 rounds of 105mm howitzer ammunition expended during 2,486 support and H&I missions.

b.   Tactical Air:     85 missions consisting of 252 sorties were flown in support of the 1st Bde with the following results:

     (1)     Structures destroyed:     38
     (2)     Vehicles destroyed:     1
     (3)     Sampans destroyed:     5
     (4)     Gun pits destroyed:     2
     (5)     Supply pits destroyed:     4
     (6)     Trellising destroyed:     55 meters
     (7)     Trench line destroyed:     100 meters
     (8)     Bridge damaged:     1
     (9)     Structures damaged:     18

b.  Army Aviation:

(1)  Sorties-HU1D Aircraft:

(a)     Gunships:     112
(b)     Tactical trooplift:     898
(c)     Resupply:     120
(d)     Air evac, G&C, recon and misc:     232

               (2) Sorties-CH47 Aircraft:     

(a)     Resupply:     158
(b)     Trooplift:     8

(3)  Sorties-OH23G Aircraft:

(a)     Tactical:     141
(b)     Air evac, C&C, recon, and misc:     159
(4)  Ammunition expended (approx):

(a)     7.62 machine gun:     32,000 rounds
(b)     2.75 rockets:     1,400 rounds
(c) Linked 40mm:     3,500 rounds

(5)  During this operation, resupply was accomplished to the 1st Bn (Mech), 5th Inf  from Cu Chi by use of Ch47 aircraft. Sorties of this type averaged 8 per day. This method of resupply praved adequate for the large quantities POL, ammunition and spare parts required by a mechanized infantry unit. A standby HU1D aircraft was required for emergency loads to back up resupply by CH47 aircraft.

8. Intelligence.

a.   Intelligence studies conducted prior to the initiation of OAHU indicated the area of operations, with the exception of Tay Ninh City,district towns, and other centers of governmental influence, had been under VC control and domination for many years. Previous friendly operations conducted throughout the area had disclosed numerous VC installations to include base camps, supply caches and training sites, and although large numbers of these facilities had been destroyed, others were fully operational. The majority of these installations were reported to be located in heavily wooded area north of Tay Ninh City and along the densely vegetated periphery of the Oriental River. Extensive oxcart, trail and sampan activity in these areas tended to confirm the extensive or the above mentioned facilites and their general location.

b.   VC activity within the area had been light with the exception of the area bounded by XT1849, XT1847, XT1449, and XT1447 which was known to be habitually occupied by the C40 Company and had been the scene of intense harassing actins by the VC against local forces. An abundance of reports also indicated various large VC units were located in the area encompassed by XT430405, XT480385, and XT50045 with resupply being accomplished by sampan traffic on the Rach Saio River.  Continuing reports of large troop movements and local guerrilla activity are depicted by the following recent significant activities:

(1)  Elements of 3d Sqdn, 4th Cav, 25th Inf Div encountered roadblocks vic XT326469, XT359469, XT374420 and XT373416 on 22 Jan 66.

(2)  On 22 Jan 66, two unidentified companies were reported vic XT410320 (F/2).

(3)  On 27 Jun 66, two battalions of the VC 272d Regt were reported to be located in the area bounded by XT490332, XT496339, XT490404, and XT484399 (F/3).

(4)  On 12 Jul 66 one unidentified company was reported vic   
XT193446 (F/2) and one unidentified VC battalion attacked the Ly Muoi Hamlet located vic XT275442.

(5)  On 19 Jul 66, an unidentified VC regiment was reported vic
XT438390 (F/3) and local guerrilla elements conducted propaganda lectures and leaflet drops along Highway 22.

c.   Although all data processed prior to OAHU indicated possible contact           
With a large VC force, this did not occur. With only the below listed exceptions, VC-1st Bde TF contacts involved sporadic sniper activity from local guerrillas and harassment of convoys in the form of roadblocks and anti-tank mines. On 7 Aug elements of the 4th Bn, 9th Inf, while conducting a search and destroy mission, encountered an undetermined number of VC vic XT054532. The VC elements immediately broke contact, and while fleeing across the Oriental River, were engaged by supporting UH1B gunships resulting in eight VC KIA (Poss). XT086539 was the scene of intense VC activity directed against C Co, 4th Bn, 9th Inf the evening of 8 Aug by an unknown size VC force. The unit throughout the day had encountered sporadic sniper activity, and upon establishment of the unit base camp during the evening hours, the VC concentrated accurate SA and AW fire against the company perimeter. Concurrently, the 1st Brigade FM command primary and alternate frequencies were effectively jammed for a period of approximately thirty minutes. A medical evacuation helicopter dispatched to extract injured personnel from the C Co, 4th Bn, 9th Inf perimeter received false visual landing signals duplicating the prescribed landing signals from a location approximately three to five kilometers north of the actual evacuation site.
                      Page 4

During the period 26-27 Aug elements of the 2d Bn, 14th Inf conducted    S&D operations in the heartland of the VC C40 Company domain resulting in the destruction of numerous bunkers, fortified positions and the eradication of fourteen VC KIA (BC) and six VC KIA (Poss). The VC encountered vic XT157469 on 27 Aug by C Co were wearing green uniforms and red scarves which londs further credence to the fact that the unit was in contact with a local force company. C Co ad the recon Plat of 1st Bn (Mech), 5th Inf apprehended and screened between two hundred fifty and three hundred personnel vic XT340460 which resulted in the capture of six VC and forty six VC suspects.

d.   All maneuver elements found the existing maps of the area to be quite
Accurate and correspond closely to the terrain in terms of concealment, critical features, obstacles and available avenues of approach. Generally, in areas of dense vegetation as depicted on geographic aids, movement was restricted and observation hampered, however, camouflage was more than adequate.

e.   Weather did not hamper or prohibit any friendly troop movements on    
Operations.

f.   The overall evaluation of the accuracy of the intelligence information
From higher, adjacent and local headquarters and sources can be considered B/2. (Usually reliable, probably true). The overall, and overall operation security of Operation OAHU was considered excellent.

9. Mission, 1st Bde conducts operations in Tay Ninh Province commencing 1 Aug    
    66 to locate and destroy VC forces, supplies, and bases and support Operation
    BLUE JAY vic Tay Ninh Airfield (West).

          10. Concept of Operation. 1st Bde will move by air and ground commencing 1 Aug  
                 to establish base and conduct combat operations employing three infantry       
                 battalions (-) to conduct S&D operations, eagle flights, ambushes and
                 patrolling in AO to locate and destroy VC forces, supplies, and bases; and
                 supports Operation BLUE JAY vic Tay Ninh Airfield (West).

a.   Phase 1 (1-5 Aug 66).

(1)  2d Bn, 14th Inf TF move to and secure base vic Tay Ninh Airstrip by heliborne and ground movement on 010900 Aug 66.

(2)  4th Bn, 9th Inf move to and secure base vic Tay Ninh Airstrip
commencing 030800 Aug 66 via Highway 22 bypass.

(3)  4th Bn, 23rd Inf TF conducts motor march from Cu Chi to Tay
Ninh Airstrip (West) commencing 050800 Aug 66.

               Page 5

b.  Phase II (2 Aug to o/a 30 Aug). 1st Bde conduct S&D operations, eagle
Flights, ambushes and patrolling in AO I and supports Operation BLUE JAY.

c.  Phase III. 1st Bde conduct tactical march to base camp Cu Chi.

11. Execution. OPORD 24-66, HQ, 25th Inf Div, received 1200 hours 27 Jul 66.
       OPORD 10-66, HQ, 1st Bde issued 1800 hours 30 Jul 66. Operation
       commenced at 0900 hours 1 Aug 66 with the following actions:

                    1 August

     2nd Bn, 14th Inf: The battalion (-) convoy departed 0900 hours from Cu Chi with quartering parties from HHC 1st Bde, SUPCOM, 1st Log Comd, 7th Bn, 11th Arty and 196th Bde. Convoy closed Tay Ninh at 1445 hours. B Co was lifted by helicopter to secure airstrip at Tay Ninh (West). A Co was airlifted by helicopter to Go Dau Ha as a reaction force during the movement of the convoy. At 1130 hours, A Co sustained 4 WIA at XT 402242 from a booby trap. A Co was airlifted to Tay Ninh when the convoy closed arriving there at 1514 hours. Bde S5 met with the Sector S5 at 1330 hours to discuss price controls and civic actions.

                    2 August

     2nd Bn, 14th Inf: Battalion continued to secure Tay Ninh Airstrip (West). Local patrols were sent out during the evening. A CO had a patrol leader wounded from a booby trap vic XT179513. Bde S5 met with District Chief to firm up price list.

                    3 August


     2d Bn, 14th Inf: A Co with one platoon from A Co, 65th Engrs and B Btry, 7th Bn, 11th Arty (-) attached, departed base at 0741 hours to XT325470, and effect link up with 4th Bn, 9th Inf. At 1030 hours, A Co searched 15 oxcarts and 120 personnel moving along the road, one individual was detained and later turned over to the Tay Ninh Province officials. Link up with 4th Bn, 9th Inf was made at 1240 hours. Unit returned to base camp at 1437 hours.
     4th Bn, 9th Inf: Battalion (-) moved by tactical motor march from Cu Chi to Go Dau Ha utilizing Highway 22 (bypass) to Tay Ninh. Unit departed at 0700 hours and arrived at 1745 hours. B Co remained at Cu Chi as a reaction force for the convoy and then was airlifted to Tay Ninh at 1200 hours.

                    4 August

     2d Bn, 14th Inf: A&C Cos conducted an S&D operation to vic XT172485,
                                             page 6
negative contact was made. Units returned to base camp at 1600 hours. A MEDCAP was conducted in Ap Thai Troung at 0830, treating 117 patients.
     4th Bn, 9th Inf: Companies conducted platoon size patrolling vic of base camp. A MEDCAP was conducted in AP Thai Troung at 1300 treating 43 patients.

                    5 August

     2nd Bn, 14th Inf: Battalion conducted a two company (A&C) S&D operation vic XT137481. One VCS was picked up by C Co at XT15492 and was returned to base camp and turned over to IPW team. Units has negative enemy contact returning to base camp at 1630 hours.
     4th Bn, 9th Inf: Companies conducted platoon size patrols in vic of base camp. All patrols returned to base camp by 1250 hours with negative contact.

                    6 August

     2d Bn, 14th Inf: Battalion remained in base camp and conducted maintenance and training.
     4th Bn, 9th Inf: C Co conducted an airmobile S&D operation vic XT103542 at 0808 hours and XT112525 at 0818 hours. Units then moved to link up vic XT104534. Unit then moved south to a LZ vic XT105510. In the vic of XT107546, 1 bunker, 18 VC structures, and 6 wells were destroyed. Unit returned back to base camp at 1600 hours. 4 sorties of F-105 prepared LZ at H-30 and 10 minute artillery preparation was fired at H-10. 4000 Chieu Hoi leaflets were dropped at XT1054 at 1030 hours. MEDCAP was conducted at XT1456 at 1130 hours treating 130 patients.
     4th Bn, 23rd Inf: Battalion moved from Cu Chi to Tay Ninh by tactical motor march.

                    7 August

     2d Bn, 14th Inf: Battalion conducted a two company airmobile operation to XT151457 (A Co) and XT153453 (B Co). 3 sorties of F-4cs prepared both LZs at H-30 and a 10 minute artillery preparation was fired at H-10. Both companies conducted S&D operations to the NE to XT180470where a blocking position has been established by a platoon from 3d Sqdn, 4th Cav. A Co located 7VC structures at XT154456, destroying them all. One trench network was located XT160464 by a Co. At 1450 hours, B Co was extracted from XT180470. A Co was extracted at 1508 hours from XT180470.
     4th Bn, 9th Inf: B Co conducted an airmobile assault to XT075535 at 0923 hours, 2 sorties of F-105 prepared LZ at H-30 and a 10 minute artillery preparation was fired at H-10. Company moved to XT065536 where they
                                                page 7

conducted S&D operations. The battalion C&C ship received small arms fire at 1055 hours from vic XT084533, artillery was called in, results unknown. B Co destroyed approximately 2250 kilos of rice vic XT063530, by fumping it in a river. The C&C ship for the battalion received SA fire from a sampan at coordinates XT055553, fire was returned with results unknown. B Co moved 300 meters west to check on a large group of women and childten trying to cross the river, all were detained and later ovacuated to a refugee village. At 1258 hours, battalion C&C ship spotted one individual camouflaged with grass vic XT056533, he was taken under fire from the aircraft resulting in 1 VC KIA (Poss). The C&C ship spotted an individual swimming up the river on a brush pile, he was taken under fire resulting in 1 VC KIA (BC). At 1328 hours, B Co located 1000 kilos rice at XT055532, rice was destroyed. Unit then moved to XT094500 for extraction which was completed at 1700 hours. SA fire was received during extraction from XT077521, gun ships returned fire and an immediate airstrike of 2 F-100s was called in. One VC structure was destroyed.
     4th Bn, 23d Inf: Battalion continued to establish base camp.

                    8 August

     2nd Bn, 14th Inf: Battalion conducted a two company (A&C) airmobile operation to an LZ vic XT1446. Both companies moved from the LZ to XT138478 where they were extracted at 1700 hours with negative contact throughout the day. MEDCAP was conducted at AP Phong Coc treating 103 patients, reward leaflets were also distributed.
     4th Bn, 9th Inf: C Co conducted an airmobile S&D operation in vic XT095538. Unit established a base camp and conducted platoon size patrols during the day with negative contact. C Co remained overnight in vic XT086514. At 1845 hours, unit requested a dust off for 2 KIA, 2 WIA resulting from sniper fire, dust off could not be effected until 2130 hours due to sniper fire being received on the LZ. A duplicate set of signals for landing were received approximately 3-5 kilometers north of the C Co LZ by the dust off pilots. Signals received were colored lens flash lights. The pilot while approaching the LZ noticed a Vietnamese in the LZ, he asked if any Vietnamese were in the area of the LZ and when told they were not, immediately pulled up and was guided to correct LZ. Artillery was called in the area where fake signals were coming from with results unknown. C Co reestablished their base camp to ZT084538 at 2135 hours. The brigade frequency was jammed from 1925 hours to 2005 hours, the alternate frequency was also jammed. Brigade operated on the 4th Bn, 9th Inf frequency until jamming ceased.
     4th Bn, 23d Inf: B Co conducted an airmobile S&D operation to LZ (XT168532). Unit conducted local S&D operations in vic with negative contact and were extracted at 1730 hours.

                                         Page 8
          9 August

     2d Bn, 14th Inf: Battalion remained at base camp conducting maintenance and training.
     4th Bn, 9th Inf: At 0615 hours B Co started movement to establish link up with C Co vic XT099519. B Co received SA fire from vic XT100519. Fire was returned with unknown results. Both companies returned to base camp at 1755 hours.
     4th Bn, 23d Inf: C Co was alerted as a standby reaction force to assist the 4th Bn, 9th Inf if required.
                    10 August

     2nd Bn, 14th Inf: C Co conducted S&D operations in vic of base camp with negative contact. Unit returned to base camp at 1600 hours.
     4th Bn, 9th Inf: Battalion remained in base camp conducting maintenance and training in preparation for the following day's operation. A control group moved with A Btry, 7th Bn, 11th Arty to Troung Mit where it established a fire support base for the following day's operation. B Co, 1st Bn (Mech), 5th Inf was attached to 4th Bn, 9th Inf effective 0800.
     4th Bn, 23d Inf: Battalion remained in base camp as brigade reaction force. MEDCAP was conducted at XT123502 treating 100 patients.

                    11 August

     2d Bn, 14th Inf: Battalion remained at base camp preparing bunkers. Battalion was designated as the brigade reaction force.
     4th Bn, 9th Inf: Battalion conducted a two company airmobile operation to LZ (XT356434) at 1115 hours. Battalion established a base vic of XT356434 and sent out security patrols and Ops, with negative enemy contact throughout the day. C Co located 10 bunkers, 30-40 meters apart vic XT357428, all were destroyed. B Co, 1st Bn (Mech), 5th Inf linked up with 4th Bn, 9th Inf upon completion of their airmobile operation. Unit helped establish security for the battalion.
     4th Bn, 23d Inf: B Co conducted an S&D operation to vic XT126528 departing base camp at 0900 hours with negative enemy contract. Company was extracted at 1440 hours from XT116535.

                    12 August

     2d Bn, 14th Inf: Battalion remained at base camp conducting maintenance and training.

                                                  Page 9

     4th Bn, 9th Inf: Companies sent out platoon size patrols vic of base camp with negative results. B Co, 1st Bn (Mech), 5th Inf conducted S&D operation to vic XT355450. Unit received SA fire from XT353452, fire was returned, no casualties were sustained. Company returned to base camp at 1600 hours.
     4th Bn, 23d Inf: Battalion remained at base camp conducting maintenance and training.

                    13 August

     2d Bn, 14th Inf: Battalion remained at base camp conducting maintenance and training.
     4th Bn, 9th Inf:  B Co conducted S&D operation vic XT3600460 departing base camp at 0700 hours. 8 VCS and 1 VCC were captured at XT341455, VCS were turned over to district chief. VCC was evacuated to IPW at Tay Ninh. Unit returned to base camp at 1725 hours. B Co, 1st Bn (Mech), 5th Inf departed base camp at 1150 hours to recon stroam crossing sites vic XT328407. Unit returned to base camp at 1717 hours.
     4th Bn, 23d Inf: Battalion remained at base camp conducting maintenance and training.

          14 August


     2d Bn, 14th Inf: Battalion remained at base camp conducting maintenance and training. One squad size recon patrol was dispatched in vic of base camp.
     4th Bn, 9th Inf: Battalion was extracted from XT355432 at 1200 hours, returning to Cu Chi. All elements has closed Cu Chi by 1610 hours.
     4th Bn, 23d Inf: Battalion remained at base camp conducting training and maintenance. One squad size recon patrol was dispatched in vic of base camp.

     1st Bn (Mech), 5th Inf: 1st Bn (Mech), 5th Inf (-) attached to 1st Bds effective 0700 hours. A Co secured A Btry, 7th Bn, 11th Arty at Go Dau Ha. B Co secured the LZ for the 4th Bn, 9th Inf extraction, vic XT355432. C Co moved from base camp to XT337437 where it conducted S&D operation in the vic. Unit returned to base camp at 1500 hours.

                    15 August

     2nd Bn, 14th Inf: Battalion (-) remained at base camp conducting training and maintenance. Recon plat dispatched one patrol to XT171493,
                                             page 10

departing base camp at 0830 hours. Enroute, unit located 35 punji stakes, one booby trapped hand grenade vic XT172493, all were destroyed. MEDCAP was conducted in Ap Thai Thoung treating 203 patients.
     4th Bn, 23rd Inf: Battalion (-) remained base camp conducting maintenance and training. 1 recon patrol was sent out from A Co to XT165635, departing at 0900 hours and returning at 1435 hours. Negative enemy contact.
     1st Bn (Mech), 5th Inf: B Co departed base camp at 0830 hours to recon the following objectives: XT336345, XT326354, XT318357, and XT310380. Unit captured 1 VCS at XT330424 at 1000 hours. Unit returned to base camp at 1725 hours. C Co conducted reconnaissance on the following objectives: XT363260, XT368317, XT380308, XT384357 and XT399365. At 0915 hours, the unit located and destroyed one mortar position XT329421. The position appeared to have been used within the last 2-4 days. At 1240 hours the company received information from SF advisors that a VC platoon was located vic XT392301. C Co checked the area out with negative contact. At 1316 hours one APC struck a mino vic XT389302. No friendly casualties, minor damage to the track. 1 VCS was apprehended vic XT395330, individual was returned to base camp. C Co closed base camp at 1900 hours. A Co continued mission of securing artillery units at Go Dau Ha. Recon platoon conducted reconnaissance of river crossing sites at XT358454, XT402443, and XT338359. At 1150 hours one APC struck a mine vic XT371422. 5 WIAs were evacuated by dust off. Platoon closed base camp at 1645 hours.

                    16 August

     2nd Bn, 14th Inf: Battalion remained at base camp conducting maintenance and training.
     4th Bn, 23d Inf: Battalion remained at base camp conducting maintenance and training. MEDCAP was conducted at XT163508 treating 200 patients.
     1st Bn (Mech), 5th Inf: A Co continued operation by providing security for artillery elements at Go Dau Ha. B Co departed base camp at 0735 hours to conduct S&D operation to XT355340. At 1152 hours, 1 VC was killed (BC) and one Chicom carbine captured at XT370378. Company returned to base camp at 1720 hours. C Co departed at 0735 hours to conduct S&D operation vic XT370346. At 1602 hours unit captured 1 VC, 1 carbine, and killed 1 VC (BC) at XT374345. Unit returned to base camp at 1700 hours. Recon platoon APC struck a mine at XT358438 on an escort mission to Go Dau Ha, unit sustained 1 KIA and 2 WIA. Unit made search of area finding 3 mines in vic XT372422. Platoon stayed at Troung Mit overnight.

                    17 August

     2nd Bn, 14th Inf: Battalion remained in base camp conducting training

                                             page 11

for selected personnel of the 2d Bn, 14th Inf and 3d Bn, 21st Inf, 196th Bde.
     4th Bn, 23d Inf: Battalion remained base camp conducting training and maintenance. One recon patrol from B Co departed base camp at 0930 hours moving to vic XT346520. Unit closed base camp at 1140 hours with negative contact.
     1st Bn (Mech), 5th Inf: Battalion conducted maintenance on vehicles and equipment. Two daylight patrols were established, one by C Co departing at 1200 hours, second by B Co departing at 1300 hours. B Co captured 1 VC and 1 Chicom rifle vic XT380445. Both patrols returned to base camp at 1830 hours.

                    18 August

     2nd Bn, 14th Inf: Battalion remained at base camp conducting training and classes for elements of the 196th Bde. One platoon from C Co conducted reconnaissance vic XT167486. One tunnel was located at XT162490 and was destroyed.
     4th Bn, 23rd Inf: Battalion remained at base camp conducting training and maintenance.
     1st Bn (Mech), 5th Inf: B Co conducted S&D operation vic XT345375 with negative contact and returned to base camp at 1730 hours. C Co conducted S&D operation vic XT360380 with negative contact and returned to base camp at 1800 hours.

                    19 August

     2nd Bn, 14th Inf: B and C Cos conducted an airmobile operation to LZ at XT247337. B Co landing at 0955 hours and C Co landing at 1015 hours with both units moving to objective at XT271330. At 1153 hours, C Co discovered a tunnel complex containing 400 lbs of rice, 3 booby traps and several firing pits at XT275329 all of which was destroyed in place. At 1300 hours C Co discovered 1 ton of loose rice at XT280329 which was destroyed in place. At 1445 hours C Co discovered 10 tons of loose rice vic XT       which was destroyed. Extraction from LZ (XT283328) was completed at 1612 hours. At 1015 hours 1 HU1D in support of 2nd Bn, 14th Inf    forced down due to mechanical troubles, 2 platoons from B Co secured the chopper till it was recovered by a CH47 at 1338 hours. MEDCAP conducted at Ap Cao Xa treated 200 patients.
     4th Bn, 23d Inf: Battalion remained at base camp. A Co conducted one recon patrol vic XT140520. Patrol departed at 0803 hours and closed

                                        page 12

base camp at 1046 hours with negative contact. At 1035 hours, B Co sent one platoon size patrol to XT171423 to check suspected enemy location with negative results. MEDCAP was conducted at Ap Cao Xa treating 150 patients.
     1st Bn (Mech), 5th Inf: A Co continued to secure artillery unit at Go Dau Ha. Remainder of battalion remained at base camp conducting maintenance of vehicles and equipment.

                    20 August

     2nd Bn, 14th Inf: C Co conducted S&D operation vic XT1448, at 1110 hours, C Co detained two personnel at XT157478, one was released and the second was returned to Bde IPW team. Company closed base camp at 1530 hours. B Co conducted an eagle flight of one platoon to XT160447 at 1045 hours and were extracted at 1243 hours with negative contact.
     4th Bn, 23rd Inf: Battalion (-) remained in base camp conducting training and maintenance. One platoon from B Co conducted a search vic base camp departing 0730 hours and returning 1020 hours with negative contact.
     1st Bn (Mech), 5th Inf: A Co continued to provide security for the Arty and Engr elements at Go Dau Ha. B Co conducted a Buddy operation in conjunction with PF & RF forces in area vic XT370430, at 1429 hours located three bicycles and a corpse of a woman vic XT370430. The body was evac to Troung Mit and company closed base camp at 1715 hours. C Co conducted a Buddy operation in conjunction with PF & RF forces moving to a blocking position vic XT411431, at 1145 hours vic XT407463, a wounded individual was found, claiming to be an ARVN soldier who had been captured by VC. Individual was evac to ARVN hospital at Tay Ninh. At 1405 hours, 1 friendly WIA was sustained from a ricochet. Individual was returned to base camp. Company closed base camp at 1715 hours.

                    21 August

     2nd Bn, 14th Inf: One platoon from C Co reinforced with 2 squads from 196th Bde conducted S&D operation in vic XT170483 departing at 0730 hours. At XT   487 unit received sniper fire resulting in 1 WIA. Remainder of C So was airlifted to reinforce the patrol XT172486, unit received 3 rounds SA fire with no casualties. Unit closed base camp at 1800 hours. Remainder of battalion conducted training and maintenance.
     4th Bn, 23rd Inf: A Co conducted S&D operation vic XT135517 in search of possible mortar sites. Unit departed base camp at 0800 hours and returned at 1200 hours. Remainder of battalion conducted maintenance and training.

                                             Page 13

     1st Bn (Mech), 5th Inf: Battalion conducted maintenance on vehicles and equipment. B Co replaced A Co at Go Dau Ha assuming the mission of Arty and Engr security. At 1335 hours, B Co destroyed 1-155 dud, 5- Chicom grenades, 1-25 pound charge rigged for command detonation at XT436353.

                    22 August

     2d Bn, 14th Inf: A Co reinforced with 3 platoons from 196th Bde conducted security of laterite pit at Tay Ninh. Remainder of battalion conducted training and maintenance. MEDCAP was conducted in Ap Thai Thoung treating 210 patients.
     4th Bn, 23d Inf: B Co conducted a search operation vic of base camp, departing at 0800 hours and returning 1019 hours with negative contact.
     1st Bn (Mech), 5th Inf: Battalion conducted operation “Blockbuster”. B Co secured Arty and Engrs at Go Dau Ha.

                    23 August

     2d Bn, 14th Inf: A Co continued to secure laterite pit. At XT158507 unit received one rifle grenade and small arms fire with no casualties.
     4th Bn, 23d Inf: B Co conducted a search vic XT145549 and 1 VCS was apprehended XT137526.
     1st Bn, (Mech), 5th Inf: Battalion continued “Blockbuster”. B Co continued security mission at Go Dau Ha.

                    24 August

     2d Bn, 14th Inf: B Co was helilifted from Tay Ninh to Cu Chi commencing at 0955 hours and
      closing Cu Chi at 1200 hours. Battalion (-) remained at base camp.  
     4th Bn, 23d Inf: Battalion remained at base camp preparing for future
     1st Bn (Mech), 5th Inf: Battalion (-) continued “Blockbuster”. D Co continued security mission at    
      Go Dau Ha. At 0300 hours, B Co received 6 rounds 60mm mortar. A patrol was dispatched in     
      morning to suspected area vic XT405239 where mortar position was located and destroyed.

                    25 August

     2d Bn, 14th Inf: A & C Cos conducted S&D operation to vic XT180467

                                             page 14

with negative contact, A Co was extracted at 1720 hours from XT154453. C Co remained overnight at XT154453 and employed ambushes and patrols. At 2210 hours a Chicom mine was exploded in vic XT155454 resulting in 1 (US) KIA. One eagle flight was conducted by recon platoon to vic XT161495 with negative contact, platoon returned to base camp at 1714 hours.
     4th Bn, 23d Inf: Battalion (-) received mission to move to Lai Khe at 1900 hours 25 August and was placed under operational control of the 1st Infantry Division. Unit started airlift by fixed wing aircraft at 2100 hours and completed lift at 260400 hours. Battalion was detached from 1st Bde effective on movement. MEDCAP WAS CONDUCTED AT Ap Cao Xa treating 120 patients.
     1st Bn (Mech), 5th Inf: C Co and recon platoon conducted S&D operation to XT417436 and XT435451, departing base camp at 0655 hours and closing at 1612 hours. At XT423440 C Co destroyed 4 bicycles, one bunker, and miscellaneous tools.

                    26 August

     2d Bn, 14th Inf: C Co began movement to base camp at 0730 hours. At 1135 hours, XT154456, unit received sniper fire. Arty was called resulting in 1 VC KIA (BC) by Arty. At 1430 hours, XT147465 unit received sniper fire. Arty was again called in resulting in 6 VC KIA (BC), 3 KIA (Poss) by Arty. At 1505 hours, XT148468, unit again received sniper fire resulting in two (US) WIA. A Co moved to a blocking position XT140480. Both units closed base camp at 1730 hours. An immediate airstrike was called in on the area. MEDCAP conducted at Phuoc Hoa treated 300 patients.
     1st Bn (Mech), 5th Inf: A & C Cos conducted a two company operation vic XT379478. In the vic XT375475 battalion discovered 19-55 gallon drums of CS gas. At 0900 hours, recon platoon picked up one VCS at XT359460 who was sent to Tay Ninh. At 1110 hours, C Co destroyed a VC structure at XT375480. 5 claymores, 18 frag grenades, and miscellaneous items used for detonation mines. All units closed back to base camp at 1615 hours.

                    27 August

     2d Bn, 14th Inf: Battalion conducted a two company operation vic XT148475 with A Co establishing a blocking position vic XT157469, C Co came under intensive small arems fire. Arty was called in resulting in 7 VC KIA (BC) and 13 VC KIA (Poss). There were 3 (US) WIA. Both companies returned to base camp at 1600 hours.
     1st Bn (Mech), 5th Inf: Battalion (-) remained in base camp conducting training and maintenance.

                                             Page 15

                    28 August

     2nd Bn, 14th Inf: Battalion remained at base camp conducting traning and maintenance.
     1st Bn (Mech), 5th Inf: A & C Cos conducted a joint search in the following areas, XT3935, 3936, and 3937. Departing base camp at 0700 hours. Area was searched throughout the day with negative contact. At 1510 hours, at XT336397 1 APC struck a mine resulting in 2 (US) WIA, Both units closed base camp at 1855 hours.

                    29 August

     2d Bn, 14th Inf: Remained at base camp conducting training and maintenance. MEDCAP was conducted at Ap Thai Thoung treating 227 patients.
     1st Bn (Mech), 5th Inf: Recon platoon and C Co departed base camp at 1015 hours to conduct S&D operation vic XT343455. At 1143 hours, 6 WIAs were sustained from a 60mm round vic XT343454. In the immediate area of XT343455 a total of 10 VCC and 85 VCS were evacuted to 1st Bde HQ (Tay Ninh). All elements closed base camp at 1710 hours.

                    30 August

     2d Bn, 14th Inf: Battalion (-) with 3d Bn, 21st Inf, A Co, 1st Bn, 5th Inf attached, conducted an operation in vic XT155468 and XT146466. 3 airstrikes wre flown in support of the operation between 0630 and 0700 hours, 10 minute artillery preparation was fired at 0700. 3d Bn, 21st Inf set up a blocking postion at XT135485. The remainder of the TF pushed toward the blocking position, with negative contact. All elements closed base camp at 1604 hours.
     1st Bn (Mech), 5th Inf: Battalion (-) returned to Cu Chi.

                    31 August

     2nd Bn, 14th Inf: CPCON 196th Bde effective 31 August 1966.
     1st Bde (-), Returned to Cu Chi by motor convoy, departing 0930 hours and closing base camp (Cu Chi) at 1600 hours. Released from OPCON 196th effective open departure.
12.  Results
A. Personnel.
(1) Friendly:                                             Page 16

KIA     WIA     MIA     DOW
          4th Bn, 9th Inf                           2         6         0         2
          2d Bn, 14th Inf                         0        16        0         1
          4th Bn, 23d In                          0          0        0         0
          1st Bn (M), 5th Inf                    1        19       0         1
          Total                                          3        41        0         4

(2) Enemy Losses.
VC KIA (BC)- 21
VC KIA (Poss)- 74
VCC- 8
VCS-  70
b.  Equipment destroyed.
(1)   Buildings- 114
(2)   Bunkers-    31
(3)   Bomb shelters-  8
(4)   Tunnels-    9
(5)   Trenches-  5
(6)   Way Stations-   10
(7)   Gun positions-   1
(8)   Base camps-   1
(9)   Fox holes-   27
(10) Supply installations-   5
(11) Mortar positions-    1
(12) Claymore weapons-  17
(13) At mines-   10
(14) Booby traps-   8
(15) 200 lb bombs-   1
(16) 20 lb bombs-    1
Page 17
(17)155m round-  1
(18) 105mm round-    1
(19) Grenades-     25
(20) CBU-     19
(21) Sampans-     9
(22) Wells-     2
(23) Punji pits-     35
(24) Bicycles-     4
(25) 55 gal drums of CS powder-     19
(26) Roadblocks-     1     
(27) 45 volt batteries-     9
(28) Blasting caps-          4
(29) Claymore wpn tripods-     3
(30) Bicycle axles-          3
(31) Electric wire-     150 feet
(32) Rice-     27,000 lbs
(33) Fertilizer-     500 lbs
(34) Phosphate-      6.5 lbs

c. Equipment Captured.

(1)     Chicom carbine-     2
(2)     French rifles-     1
(3)     Mauser rifles-     1
(4)     Bicycles-     3
(5)     Radio antenna-     1

                                   page 18

(6)     Voltmeter-     1
(7)     Helmets-     2
(8)     Demo kits-     1
(9)     Canteen-     1
(10)   Watch-          1
(11)   Uniforms-     3
(12)   Carbine magazines-     4
(13)  Assorted tools
(14)  BAR magazine-     1
(15)  Assorted documents
(16)  Assorted medicines
(17)  Numerous VC propaganda leaflets

13. Administrative Matters
a.  Supply
(1)       The 1st Brigade established a Brigade Logistical Operation Center at Tay Ninh on 1 August 1966. The 2d Bn, 14th Inf, 4th Bn, 9th Inf, 4th Bn, 23d Inf and 7th Bn, 11th Arty sent all logistical requirements through the BLOC.
(2)      In addition to 1st Brigade requirements, the BLOC determined, processed, and monitored the input of all classes of supply needed by the 196th Bde in conjunction with Operation BLUE JAY. The 25th Div SUPCOM and elements of the 1st Log. Comd provided supervisory personnel and equipment vital to the operation of the brigade trains complex, in addition to supply point operations, a QM laundry, shower point, aid station, Graves Registration, forward maintenance support, and water point were incorporated into the support role.
b.  Resupply.
(1)       Resupply of the 1st Brigade as well as transporting of those requirements in support of Operation BLUE JAY was accomplished by motor convoy from Saigon to Cu Chi to Tay Ninh. Several items of a perishable and immediate operational nature were delivered by air.

                                                  Page 19

(2)     Helicopters were used extensively for resupply of those 1st Brigade elements
           onoperations. Supplies were dispatched from the Battalion Trains to the forward
           areas. Resupply, monitored by BLOC personnel was controlled by the battalion.   

c.         Maintenance:     The 725th Maintenance provided contact teams, on call support, and  3d echelon repair service. Maintenance support  was excellent throughout the operation.

d.         treatment of casualties and evacuation and hospitalization: Support Command staffed and operated a medical clearing station at the Bloc. Additionally, battalion aid stations were operational and a “Dust Off” was provided on call. Patients requiring care beyond the capability of those facilities were evacuated. Excellent medical care was provided and no significant problems arose.

e.         Transportation:   Troop movement (except airmobile operations) and transporting of supplies and equipment from Saigon and Cu Chi to the BLOC were, with few exceptions, accomplished by motor convoy. No unusual problems arose.
f.         Communications:     No significant problems were noted.

g.        General Comments:     Throughout Operation OAHU the BLOC was responsible for supervising logistical operations of the 1st Brigade and the 196th Bde. Because of the nature of the mission BLOC personnel became actively involved as operators as well as planners. This dual role promoted cohesion of efforts between brigades, and also served as a teaching device to the supported brigade. Representatives from SUPCOM and from the Brigade and Battalion S4 sections of both brigades exchanged experiences, problems, and lessons learned, with a view towards early establishment of an operational support element of the 196th Inf Bde. Logistical support both laterally and internally was excellent throughout the operation.

     14.     Special Equipment and Techniques.
Emphasis was placed on developing an active civil affairs and PSYOPS program that would not only win friends but produce effective intelligence. To accomplish this the following actions were taken.
(1)  Civil Affairs.
(a) A price list was agreed upon and a price list was published by Secter and distributed to subordinate units and local agencies.
(b) Transportation was provided by the brigade to move refugees from Ap Phung Binh, XT3048, to New Life Hamlet at XT2849.

Page 20


                                                           (c) MEDCAPS conducted by the brigade units and supporting artillery .
                                                                  throughout the area of operations treated 2,103 patients. In
                                                                  conjunction with the MEDCAPs, 207 bars of soap, 4,695 items of
                                                                  assorted clothing and 900 lbs of rice were distributed
(d) School supplies were distributed to 100 school children at Ap Cao Xa.
(e) A party was given by the brigade for the children of Ap Cao Xa. The children were treated with candy, toys, and dinner.
(f)  A playground swing set was given to the school at Ap Cao Xa.
                            (2)     PSYOPS:     PSYWAR efforts were directed at the guerrilla units in the AO and the
                                      local population in the vicinity of the base camp. Chieu Hoi leaflets were distributed
                                      by helicopter in conjunction with operations, however they didn't produce any
                                       tangible results. Leaflets, to the villagers in the vicinity of the base camp resulting in
                                       three informants for the brigade. The information received from the informants       
                                       proved correct and timely
          b. Lessons Learned.

                                   (1) A meeting with the local officials should be held as soon as possible to discuss
                                         their CA plans and determine in what areas the brigade can be of assistance. The
                                         initial meeting also produced results in agreeing on a price list which was adhered
                                         to throughout the operation.

(2) Chaplains can be of invaluable assistance in CA activities, especially in the predominately Catholic areas. The Catholic Chaplain was instrumental in establishing good rapport with the civilian leaders in several communities.

(3)  Loudspeaker missions flown at 2000 feet were not effective. An altitude of  4000-5000 feet proved more successful from the standpoint of being understood.

(4) The S5 working closely with the S2 is a valuable source of information that can rapidly be developed into effective intelligence.  
15.      Commanders Analysis.     
a.  Operation OAHU was completely successful because the 196th Inf Bde was able to move into the Tay Ninh area as scheduled and without harassment or other VC influences.
                                                                       Page 21

b.  The civic actions in that area resulted in making friends with the local people as well as producing active intelligence that was exploited in a timely manner.

FOR THE COMMAMDER:




                    DONALD A. HAMLIN
                    Major, Infantry
                    Adjutant

                              Page 22

HEADQUARTERS, 25TH INFANTRY DIVISION, APO 96225
THRU:     Commanding General, II Field Force Vietnam, APO 96266
TO:          Commander, U.S. Military Assistance Command, ATTN: J343, APO 96243 Forwarded.
     FOR THE COMMANDER:




                                        PHILIP U. BONDI
                                        CPT, AGC
                                        Asst AG


DISTRIBUTION:
     AcofS for force Dev, DA
     CG, USARPAC, ATTN: GPOP-MH
     MACV,ATTN: J343 (thru IIFFORCEV)
     MACV, ATTN: J2 (thru IIFFORCEV)
     MACV, ATTN: MACT (thru IIFFORCEV)
     MACV, ATTN: Chief USAF Adv Gp (thru IIFFORCEV)
     CG, IIFFORCEV, ATTN: G3 (D&T)
     CG, USA Inf Sch, Ft Benning, Ga.
     CG, USA Arm Sch, Ft Knox, Ky.
     CO, USA Inf Rech Unit, Ft. Benning, Ga.
     USACDC Ln Off, APO 96558





   Operation Kailua

DEPARTMENT OF THE ARMY
OFFICE OF THE ADJUTANT GENERAL
WASHINGTON, D.C. 20210

IN REPLY REFER TO
AGAM-P (M) (9 May 67) FOR OT                                                                                                  15 May 1967

SUBJECT:     Operational Report - Lessons Learned, Combat After
          Action Report for Operation Kailua conducted by 2nd
          Brigade, 25th Infantry Division (U)

TO:          SEE DISTRIBUTION


     1.     Forwarded as inclosure is a Combat After Action Report for Operation Kailua.  Operation Kailua was conducted by the 2nd Brigade, 25th Infantry Division during the period 12 Oct - 14 Nov 1966.  Information contained in this report is provided to insure appropriate benefits in the future from lessons learned during current operations, and may be adapted for use in developing training material.

          BY ORDER OF THE SECRETARY OF THE ARMY:


                                   /s/ Kenneth G. Wickham
1 Incl                                   KENNETH G. WICKHAM
as                                   Major General, USA
                                   The Adjutant General
DISTRIBUTION:
     Commanding General
          US Army Combat Development Command
     Commandants
          US Army Command and General Staff College
          US Army War College
          US Army Air Defense School
          US Army Artillery and Missile School
          US Army Armor School
          US Army Chemical Corps School
          US Army Engineer School
          US Army Military Police School
          US Army Infantry School
          US Army Intelligence School
          US Army Medical Field Service School
          US Army Ordnance School
          US Army Quartermaster School
          US Army Quartermaster School
          US Army Security Agency School
          US Army Transportation School
          US Army Signal School
          US Army Special Warfare School
          US Army Civil Affairs School

(see page 2 for Copies furnished)
     Copies furnished:
          Office, Chief of Staff, US Army
          Assistant Chief of Staff for Force Development
          Research Analysis Corporation (Library)
          Security Officer, Los Alamos Scientific Laboratory
          National Aeronautics & Space Administration
          Office of the Director of Defense Research & Engineering
          South East Asia Forces, OSD
          CO, 1st Battalion, 50th Infantry (Mech)



                       DEPARTMENT OF THE ARMY
               HEADQUARTERS 2d BRIGADE 25th INFANTRY DIVISION
                               APO  US FORCES 96225

AVDCSB-T                                                                                                                               21 December 1966

SUBJECT        :   Combat After Action Report

TO:                       Commanding General
                             25th  Infantry Division
 ATT:                     AVDCOP
                             APO  US  Forces  96225


1. Operation KAILUA  (OPORD  38-66)

2. 120001 Oct - 142400  Nov  66

3. HAU NGHIA Province,  Republic of Vietnam

4. Control Headquarters:  2d  Bde,  25th  Infantry Division

5. Reporting Officer:   Colonal Thomas M. Tarpley

6. Task Organization and Commanders:

1/5  (M)  (LTC  Victor F. Diaz,,  Cmdg)

1/5  (M)
Helicopter

1/27  Inf.  (MAJ  Guy S. Maloy III,  Cmdg)

1/27  Inf
Helicopter

2/27  Inf  (LTC  William C. Barrett,  Cmdg)

2/27  Inf
Helicopter

1/8  Arty  (LTC James M. Cannon,  Cmdg)

1/8  Arty
Helicopter

7. Supporting Forces:

a.  Air Support:

(1)  General: Both tactical fighter and heavy bombers were used to support the operation.
A total of 98 strikes were used to support the task force in the area of operation.  All pre-planned strikes were based on current intelligence of Viet Cong unit actions, suspected base camps; and storage areas.  Four of the strikes were “immediate” close support.  Average reaction time for the “immediate” strikes were 15 minutes after the request was made, which is a satisfactory reaction time.  The “immediate” strikes were 100% effective.
(2)  All airstrikes were controlled by FAC's assigned to the 25th Division.  All ordnance
was delivered by Air Force aircraft.

                        (3)   Results:   9 KBA (BC),  27 KBA (POSS), 191 structures destroyed,  4 bridges destroyed, 34 bunkers destroyed,  6 sampans destroyed, 190 meters trench line destroyed,  7 tunnels destroyed.

b. Army Aviation:

(1)  The 25th Avn Bn,  25th Inf Div provided airmobile support including resupply and
gunships, liaison and coordination for airmobile operations.  The 145th Combat Avn Bn and the 11th combat Avn Bn provided back-up support for combat assaults.

c.  Artillery Support:

(1)   General:   The extensive area of operation necessitated wide dispersal of firing
batteries and frequent relocation to provide artillery support to maneuver elements of the brigade.  The widespread deployment of subordinate units made battalion command groups and battery command groups necessary to be able to deliver immediate and adequate fire support.  It was found that this deployment of batteries, necessitated retransmission communication.  Army Aviation support for airlift by CH-47 was excellent.  No other transportation difficulties were observed.  

(2)  Organization for Combat:

(a)   1/8 Arty,  DS  2d  Bde.
(b)    Btry A,  2/13th  Arty,  GS-R  25th Div Arty(1)  

(3)   Battery firing positions and missions:

(a)    Battery A, 1st Battalion, 6th Artillery began the operation at TRANG BANG
(XT484195) supporting 1st Battalion, 27th Infantry operations in TANG BANG District.  It remained there until 29 October 1966, when it was replaced by Battery A, 2d Battalion, 13th Artillery.  On 1 Nov. it was airlifted by CH-47 aircraft to DAU TIENG, (XT492473) with the mission of reinforcing the fire of the 3rd Battalion,  82d Artillery, participating in Operation ATTLEBORO.  On 5 Nov., it became attached to the 3rd  Battalion, 82d Artillery and thus to the 1st Inf Division Artillery.  On 12 Nov, Battery A rejoined the 8th Artillery.
                             (b)   Battery B, 1st Battalion, 8th Artillery was located at (XT55250520) supporting the 2d Battalion, 27th Infantry when the operation started, and was returned to base camp the same day.  Battery B remained in base camp until 15 October when it was moved to DUC HOA (XS596966) with four howitzers.  This displacement was also in support of 2nd Battalion, 27th Infantry operations.  It remained at DUC HOA until 24 October 1966 when it returned to base camp.  ;On 26 October 1966, it displaced again by road convoy to (XT607112) for a 2nd Battalion, 27th Infantry operation.  It returned the same day to base camp.  On 28 October, Battery B displaced by road convoy to BAO TRAI airstrip (XT541045) and returned the same day.  On 30 October, Battery B again departed for the BAO TRAI airstrip and returned the same day.  On 1 November Battery B again displaced by road convoy, this time to (XT572071) and returned to base camp on 3 November 1966.  On 8 November it again displaced to (XT5720-71) and returned to base camp for a motor convoy to TAY NINH with the battalion (-) and then to (XT61524) until
the operation ended.               

                              (c)   Battery C, 1st Battalion, 8th Artillery began the operation in base camp with a platoon at (XT65971487).  It remained in base camp until 22 October when it displaced four howitzers by air to (XT591212) in support of 1st Battalion (Mech), 5th Infantry operations.  One platoon remained

(p2)

emplaced at (XT65471487).  On 25 October, Battery C (-) returned to base camp by air, and on 26 October, its forward platoon returned to base camp.  On 27 October, Battery C (-) displaced to TRANG BANG, (XT4819) in support of 1st Battalion (Mech), 5th Infantry operations.  It remained there until 31 October when it returned to base camp.  One platoon again moved to (XT659149) to support TAN PHU TRUNG pacification.  It returned on 2 November to base camp , and on 3 November was airlifted to TRUNG LAP, (XT59292163) to support the 1st Battalion (Mech), 5th Infantry.  On 5 November it returned to base camp and on 8 November moved with the battalion (-) to TAY NINH to support operation.

                      (d)   Battery A, 2nd Battalion, 13th Artillery was attached to the battalion on 28 October 1966 at 1225 hours.  On 29 October it moved by motor convoy to TRANG BANG to replace A Battery, 1st Battalion, 6th Artillery.  On 2 November it moved to base camp CU CHI and remained there until 4 November when it motor marched to  TAY NINH.  On 5 November it motor marched to SOUI DA, vicinity (XT343579).  At 2400 hours on 5 November it became attached to the 1st Infantry Div Arty for Operation ATTLEBORO.

(4)  Artillery fire was used primarily for

(a) Suppression of sniper fire

(b) Softening of areas in front of advancing infantry elements on search and destroy operations
(c) Locating areas on the ground during the hours of darkness.  White phosphorus with time fuse and a 200 meter height of burst was used extensively in the operation.
(d) H & I fires

(5)   Total missions and rounds fired by type:

(a) Mission:  58 registration, 1009 H & I, 560 close support,  1627 total support.

(b) Ammunition expended:   HE 9034, WP750, Ill 172,  Total 9956.

(6)  Results:  6 KIA (BC),  30 KIA  (POSS),  7 structures destroyed,  4 sampans destroyed,  2 secondary explosions,  5 bridges destroyed,  2 bridges damaged,  2 boats destroyed,  1 vehicle destroyed.  

d. Fire Coordination:

(1)  Daily coordination meetings enabled TAC Air, Army Aviation and Artillery to deliver timely and effective fire support throughout the operation.  

(2)  Coordination was outstanding and it facilitated continuous fire support while maneuver units were operating.  

8. Intelligence:

a. Enemy situation Prior to Operation:

(1)  For the six week period prior to the operation, VC forces continued to avoid significant contact.  The isolated incidents of engagement with VC forces were limited to small scale harassment of outposts.  

(2)   Contact was anticipated with the D85 (TRANG BANG) Co vic (XT5221), elements of the 1st and 7th Bns, 165A Regt, and the 320th TAY NINH LF Bn vic HO BO (XT6330) and BOI LOI WOODS (XT5032).  The 267th and 269th Bns were reported to be in the general area along the VAM CO DONG River.  
               b.   Enemy Situation During the Operation:
  (p3)

                        (1)   With the exception of a mortar attack on the forward CP of the 2/27 on 23 Oct,
  enemy contact during the period 12 Oct to 2 Nov continued to be light.  Engagements were brief and consisted of sporadic sniper fire, and for the most part were friendly initiated during eagle flights and search and destroy operations.  Activity was primarily identified with local guerrilla forces.  No positive identification with main force units was made.  Information provided by CHIEU HOI's, VCC and agents played an important role during the reported period.  Reliable reports were received with comparative frequency, and on several occasions, the source of the information accompanied troops in follow-up ground action.

                        (2)   On 23 Oct, the VC launched a mortar attack on the forward CP of the 2/27th vic THO
HO, (XS563986).  Quick counter mortar reaction repelled the attack, resulting in 7 VC KIA (BC),  20 VC KIA (POSS), and the capture of 1 VCC, 5 claymore mines,  11 rifle grenades, 8  81 mm mortar rds, 5  60mm mortar rds and 408 SA rds.

                        (3)   On 18 Oct, 1/5 (M) Inf captured a VCC at (XT713124).  After initial field interrogation, information gained from the VCC resulted in 3  VC KIA (BC),  6 VC KIA (POSS), and the capture of 2 Chicom assault rifles, 6 hand grenades, 156 rds of SA ammo.  

                        (4)   On 24 Oct, a CHIEU HOI led the 1/5 Mech to a cache (XT604258).  Captured items included 600 lbs TNT and 25 hand grenade booby traps.

                        (5)   On 31 Oct, VCC Nguyen Van Hue led the 1/5 Mech troops to an extensive tunnel complex (XT702182).  Captured in the tunnel were 20 lbs of documents, 1 SMG, 4345 rds of SA ammo and 2 claymores.

                        (6)   On 3 Nov., heavy contact was made with a large VC force by the 196th Inf Bde in TAY NINH Province.  The duration and magnitude of the engagement resulted in the commitment of the 3 maneuver bns of the 2d Bde in TAY NINH as part of the 196th Inf Bde.

                        (7)   On 3 Nov, CHIEU HOI, Nguyan Van Hue, led 1/5 Mech to a cache (XT655232).  The cache consisted of 2 rifles, 106 75mm recoilless rounds, 5 hand grenades, and 124 point detonating type fuses.  

                         c.   Terrain and Weather:   Terrain was generally flat to gently rolling hills.  Elevation ranged between 1 and 10 meters throughout the area.  Low areas were characterized by inundated rice paddies and marsh which restricted and/or prohibited tracked movement.  Jungle areas were typically thickly vegetated, affording good concealment for the bunkers and trenches, especially in the HO BO - BOI LOI Woods area.  Weather was consistently favorable.  However early morning fog precluded maximum use of aircraft.

              9.   Mission:   2d Bde conducts operations in HAU NGHIA Province to locate and destroy VC forces, supplies and bases;  interdict VC LOC's.

10.  Concept of Operation:  2d Bde conducted a series of airmobile and ground assaults, search and destroy operations, employed eagle flights, combat patrols, ambushes and combined operations with local ARVN forces to locate and destroy VC forces, supplies, and base areas.  Airmobile operations were characterized by several small unit eagle flights, with the capability to rapidly reinforce or extract, supported by pre-positioned artillery.
             11.  Execution:  Div FRAGO 4 to OPORD 29-66 was received 110147 Oct 66.

                                   (p4)


12  Oct  1966

    1st Bn  (Mech),  5th  Infantry

     Bn continued pacification opns in TAN PHU TRUNG (XT6809).  Co A conducted a search of (XT680128) with negative results.  Co A departed  TAN PHU TRUNG at 1244 hrs and returned to CU CHI at 1410 hrs.  Co B established a combat base at (XT693096) and continued to conduct saturation ambushing and security opns.  Security plat provided security for the village PF plat as it conducted a house to house search with negative results.  At 1900 hrs, Co C ambush adjusted Arty fire on 5 VC at (XT639209) resulting in 3 VC KIA (Poss).

     1st Bn,  27th  Infantry

     Co B, with the Recon plat attached, conducted an airmobile assault into (XT561224) at 1025 hrs.  Co B destroyed one VC bunker (XT560226) at 1136 hrs.  Co B was extracted from the objective at 1158 hrs.  At 1202 hrs, Co B conducted an airmobile assault into (XT477253).  Co B engaged three VC at 1208 hrs, resulting in 2 VC KIA (BC) and 1 VCS (XT477253).  At 1214 hrs elements of Co B were extracted and commenced Eagle Flight opns in support of the remaining elements.  The Eagle Flight elements conducted combat assaults into LZ's (XT471237) and (XT472234) at 1424 hrs.  At 1428 hrs, 3 VC were engaged at (XT472234) resulting in 3 VCC captured.  All elements of Co B were extracted at 1444 hrs.  At 1523 hrs, Co B conducted a combat assault into (XT435245).  Co B was engaged by 4 VC (XT443244) at 1536 hrs and returned fire immediately resulting in 3 VC KIA (POSS).  All elements were extracted back to CU CHI at 1645 hrs.

                         2d Bn,  27th  Infantry

     Co A commenced S&D opns in objs (XT5704, XT5603) at 0900 hrs.  Between 0900 hrs and 1040 hrs, Recon plat intercepted and detained 29 personnel (XT5504,  XT5805).  All detainees were evacuated to BAO THAI and interrogated.  19 were determined to be VCS.  At 1153 hrs, Co A apprehended 3 VCS at (XT56027).  Recon plat returned to base camp at 1040 hrs.  Co A closed into CU CHI base camp at 1628 hrs.

    13   Oct   66

           1st Bn  (Mech),  5th  Infantry

     Co B continued pacification opns in TAN PHU TRUNG from combat base at (XT693096).  At 0910 hrs (XT683129) Co B located and destroyed 1 bunker, 1  4.2 in dud, and 1 M79 rd.  All elements closed into the company base at 1245 hrs.

                         1st lBn,  27th  Infantry

     Co A and Co B conducted an airmobile “Buddy” opn with the ARVN 2/49 Inf commencing at 0800 hrs.  (XT515145).  At 0908 hrs, Co A apprehended 1 VCS (XT526138) and engaged 1 VC with SA resulting in 1 VC KIA (Poss).  All elements closed CU CHI at 1545 hrs.  ARVN 2/49 Inf captured 2 VCC in a tunnel at (XT510143).  Four VCS were captured in the same area minutes later.  

                         2d  Bn,  27th  Infantry

     Co B conducted a combat patrol at 0800 hrs (XT616172).  The patrol returned to base camp at 1800 hrs, negative contact.
                                         (p5)

14   Oct  1966

                         1st  Bn (Mech),  5th  Infantry

     Bn assumed responsibility for base camp reaction force at 1200 hrs.  Co B continued pacification operations in TAU PHU TRUNG (XT6809) with S&D opn (XT674109).  Co B established a new combat base at (XT693096).  Saturation ambushing was conducted during the night.  At 0800 hrs a search of (XT674109) commenced.  The company returned at 1232 hrs with negative contact.  The Bn (-) conducted maintenance of vehicles in preparation for future opns.

                               1st  Bn,  27th  Infantry

     The Recon plat returning from an ambush patrol, discovered four booby trapped hand grenades and one AP mine (XT607153) at 1053 hrs.  Three grenades and the mine were destroyed in place and one hand grenade brought in for examination.  1 B 1/27 Inf was replaced as security for A 1/8 Arty fire support base at      TRANG BANG by 3 C 1/27 Inf.  The Bn (-) defended the Bn base camp sector and continued improvement of the bunker / barrier line.

                                2d  Bn,  27th  Infantry

     Co A conducted a combat assault into two LZ's (XT462151, XT475145) at 1312 hrs.  One VCS was captured (XT464145).  Two VCS were captured (XT468157) at 1528 hrs.  At 1550 hrs, Co A was extracted back to base camp.  Co B conducted a combat assault at 1609 hrs into (XT527100).  One AT mine was destroyed (XT527107) at 1636 hrs.  Co B was extracted back to base camp at 1800 hrs.

15  Oct  1966

1st  Bn  (Mech),  5th  Infantry

     Co B continued pacification opns in TAN PHU TRUNG (XT6809) until relieved by Co C at 1442 hrs.  At 0600 hrs, plat Co A escorted B 1/8 Arty to DUC LAP and returned to CU CHI at 1555 hrs.

                                1st  Bn,  27th  Infantry

     Co B conducted Eagle Flight opns into 5 LZ's (XT35113,  XT487235,  XT552222,  XT487243,  and XT435242).  At 1558 hrs, Co B assault element landed at Obj 1  (XT535113) and captured 3 VCC who were evading capture by hiding in rice paddy.  Between 1627 and 1715 hrs, Co B captured 1 VCC and 6 VCS in the objective area.  Co B was extracted and closed base camp at 1815 hrs.

                               2d  Bn,  27th  Infantry

     Co A and Co B were pre-positioned at DUC HOA (XT594961) in preparation for an airmobile combat assault.  The mission was cancelled at 1300 hrs.  Plat Co C remained at DUC HOA providing security for B 1/8 Arty in preparation for future operations.

16  Oct  1966

1st  Bn  (Mech),  5th  Infantry

     At 0155 hrs an OP/LP at (XT692095) received 3 incoming hand grenades resulting in 1 KIA and 1 DOW.  An immediate search was conducted of the area with negative VC contact.  Co C established a company base at (XT693096).  At 0700 hrs, Co C conducted S&D opns at (XT732120) and (XT740116).  At 0730 hrs, 3 VC sleeping areas were found at (XT729111).  Found in the area were misc. clothing and documents.  One ARVN fatigue jacket, one bed roll, and one carbine bayonet were found (XT720106) at 0820 hrs.  At 1000 hrs, 2 VCC were captured (XT720106).  All elements closed into the company base at 1526 hrs.                                            

 (p6)

                            1st Bn,  27th  Infantry

     1 C 1/27 Inf departed CU CHI base camp at 0955 hrs by motor convoy escorted by the Recon Plat.  A Roadrunner opn was conducted to (XT564162) where 1 C 1/27 dismounted and was joined by PF soldiers from the PHOUC MY OP (XT562162).  A Buddy S&D opn was commenced at 1005 hrs along the southern edge of Hwy 1.  At 1035 hrs, 1 C 1/27 Inf destroyed 5 VC punji pits and one VC hand grenade at (XT551143).  1 C 1/27 returned to base camp at 1245 hrs.  At 1600 hrs, 1 C 1/27 was airlifted to TRANG BANG airstrip (XT489194) where they remained with 3 C 1/27 Inf.

                             2d  Bn,  27th  Infantry

     Co A and Co B conducted an airmobile combat assault into (XT555985) and established a Bn (-) forward combat base.  The operation commenced at 0730 hrs,and at 0745 hrs all elements had landed on cold LZ's.  During the establishment of the forward base, 1 VCC and 4 VCS were captured (XT555985).

17  Oct  66

1st Bn  *Mech),  5th  Infantry

     Bn (-) continued pacification opns in the village of Tan Phu Trung (XT6809).  One plat Co C conducted an airmobile combat assault (XT715120) in response to intelligence reports of 20 VC in the objective area.  The opn commenced at 0700 hrs.  Plat Co A secured the Hoc Mon Bridge (XT713072) and at 2244 hrs, 3 VC were engaged with automatic weapons fire resulting in 1 VC KIA(BC).  The plat closed base camp at 0925 hrs.

                             1st Bn,  27th  Infantry

     Co C conducted airmobile combat assaults into multiple LZ's (XT512227),  XT507225, and XT506220) commencing at 0628 hrs.  At 0719 hrs, Co C captured 1 VCC at (XT509218) with 4210 piasters and misc VC documents.  Gunships fired on 2 VC at (XT513220) resulting in 2 VC KIA (Poss).  At 0742 hrs, one 15 ft. tunnel containing 20 rds of SA ammo and ½ lb of medical supplies was discovered (XT509218).  At 0850 hrs, a tunnel (XT509220) containing 857 rds of 7.62 ammo and assorted demolitions was found.  One VC was engaged (XT509241) at 0915 hrs resulting in 1 VC KIA (BC).  At 1020 hrs 2 VC were engaged (XT442241) resulting in 1 VC KIA (BC), and 1 VCC WIA.  An additional 3 VCS were apprehended at 1045 hrs.  Gunships engaged VC between 1149 hrs and 1435 hrs resulting in 3 VC KIA (BC)  (XT515221) and 2 VC KIA (Poss).  An additional 2 VCS were captured by Co C at (XT531276), while the airborne jump team captured 5 VCS around the objective area.  All elements were extracted and closed Cu Chi at 1704 hrs.

                         2d  Bn,  27th  Infantry

     Co B conducted an airmobile combat assault into (XS530988) commencing at 1035 hrs.  In the objective area between 1106 and 1400 hrs, Co B found 2 lbs of documents, 1 steel helmet, and 1 ton of rice.  Negative VC activity was observed and all elements closed fwd combat base (XS555985) at 1405 hrs.  Co C secured B 1/8 Arty at DUC HOA (XS598965).

                                 18  Oct,  1966

1st  Bn, (Mech),  5th   Infantry

     Ambush patrol from Co A located and destroyed one booby trap (XT622168) at 1910 hrs.  At 2035 hrs, 2 platoons from Co B conducted a Roadrunner opn to TRUNG LAP (XT567177) to assist in the extraction of one Btry 3/13 Arty back to CU CHI, closing base camp at 0110 hrs.  Co C established a fwd combat base at (XT695095).  A S&D opn was commenced by Co C at 0700 hrs (XT712124).  One VC was captured (XT713124) with several documents at 0835 hrs.  One VC hut and one VC sampan were destroyed (XT713124) by Co C at 0840 hrs.  Co C commenced an airmobile combat assault at 1015 hrs to react to information gained from the VCC.  The VCC indicated that 5 VC and a cache were located at (XT696135).  As the Co C elements assaulted the objective at 1015 hrs, seven VC were engaged, resulting in one VC KIA (BC) and sic VC KIA (poss).  Co C sustained one minor WIA.  Enroute to the company base, two VC were engaged (XT729086) resulting in 2 VC KIA (BC) and two Chicom assault rifles, four magazines, six Chicom grenades, 156 SA rds,  two sets of web equipment and misc. documents captured (XT729083).  All elements closed into the fwd base at 1525 hrs.  At 1345 hrs, Co B conducted an S&D opn (XT627218) in response to a LRRP contact with 25 VC at (XT627218).  At 1547 hrs, Co B destroyed one VC hut and one VC bunker.  Five VC huts and one VC bicycle were destroyed at 1600 hrs (XT623217).  Co B sustained one minor WIA from a booby trap (XT623217) at 1612 hrs.  Six booby traps were destroyed (XT623217) at 1615 hrs.  One APC hit an AP mine (XT623216) at 1641 hrs resulting in one minor WIA and negative damage to the APC.  Co B was enroute to CU CHI base camp at 1800 hrs.

                         1st  Bn,  27th  Infantry

     Co B commenced Eagle Flight opns north of TRANG BANG at 1110 hrs.  One plat Co B remained at TRANG BANG airstrip (XT488194) as a ready reaction force (REF).  At 1219 hrs, the assault element landed at (XT556230) with negative enemy contact.  The assault element was airborne at 1225 hrs in search of another target.  At 1236 hrs, a jump team was landed at (XT447266) where one VCS was captured when he attempted to flee the area.  The assault element was extracted at 1255 hrs and immediately re-landed at (XT492253) when 3 VC were observed running from the previous objective.  At 1301 hrs, one VC was engaged resulting in 1 VC KIA (BC).  At 1306 hrs, 1 VCC was captured (XT492253).  Co B returned to CU CHI base camp at 1402 hrs., was designated division reaction force, and attached to the 1/5 (M).  At 1403 hrs, Co B was airborne as an immediate reaction force for Co B 1/5 (M) opn.  Co B 1/27 Inf was released at 1604 hrs and returned to base camp.  All elements closed base camp at 1640 hrs.  

                         2nd Bn,  27th  Infantry

     Co A commenced S&D opns in THO MO (XS575980) at 0800 hrs.  The company returned to the fwd base (XS555985) at 1235 hrs with negative contact.  Co B commenced S&D opns in THO MO (XS554992) at 1555 hrs.  At 1646 hrs, Co B apprehended 4 VCS (XS554992).  Two pounds of misc. clothing were found (XS554992) at 1650 hrs.

19  Oct  1966

1st Bn (Mech),  5th  Infantry

     Co C conducted an airmobile assault into multiple LZ's (XT719010 and XT734093), commencing at 0920 hrs.  All elements returned to the forward combat base (XT695095) at 1655 hrs.  Plat Co A secured the HOC MON BRIDGE (XT713072) during the hours of darkness.

                             1st  Bn,  27th  Infantry

     Co A continued to provide one plat for security of Btry A 1/8 Arty at TRANG BANG Airstrip (XT468194).

                             2nd   Bn,  27th  Infantry

     Bn (-) continued opns in the village of THO MO (XT556983).  Co A conducted an airmobile assault (XS568966) commencing at 1235 hrs.  One VCS was captured (XS566967) at 1412 hrs.  All elements closed into the Bn forward combat base (XS555985) at 1455 hrs.  Co B commenced local reconnaissance in force opns at 0845 hrs (XS5598,  XS5597,  XS5498).  Six sampans were captured (XS552974) at 0905 hrs and were evacuated to the fwd  combat base for use in future opns.  Plat Co C continued to provide security for C 1/8 Arty at DUC HOA (XS591961).  All elements closed fwd combat base at 1455 hrs.
    (p 8)

20  October  1966

1st Bn (Mech),  5th  Infantry

     Co C established a fwd combat base at (XT695095).  At 1030 hrs, Co C conducted an airmobile combat assault into (XT710070) and (XT710050).  All elements returned to the fwd base at 1445 hrs with negative contact.  Co B conducted a reconnaissance in force with one platoon in BAO CAP (XT633184).

                              1st  Bn,  27th  Infantry

     First plat Co B replaced third plat Co C as security for A 1/8 Arty fire support base at TRANG BANG.  Bn (-) continued defense of CU CHI base camp.  Co C conducted “Bushmaster” opn (XT580188) at 2100 hrs to interdict a suspected VC LOC.

                              2nd  Bn,  27th  Infantry

     Bn conducted extensive civil affairs opns in THO MO village (XS5590).  Plat Co C continued to provide security for C 1/8 Arty fire support base at DUC HOA (XT591961).  Medcap treated 112 patients in THO MO (SX5598).

 21  Oct   1966

1st Bn  (Mech),  5th  Infantry

     Co C established a fwd combat base at (XT695095).  Co A relieved Co C at 1144 hrs.  Bn (-) prepared for opns on 22 oct 66.

                              1st  Bn,  27th  Infantry

     Co C established the “Bushmaster” opn (XT580188) initiated the previous day, commencing move to base camp at 0630 hrs.  At 0753 hrs, 2 US WIA were sustained from booby traps (XT598183).  At 0847 gunships engaged 1 VC in that area resulting in 1 VC KIA (Poss).  The unit closed base camp at 1030 hrs.  Co A conducted Eagle Flights into multiple objectives in the TRANG BANG district commencing at 1342 hrs.  5 VC's were apprehended (XT490250) during this operation.  Co A closed division base camp at 1715 hrs.

                                2d  Bn,  27th  Infantry

     Recon plat ambush at (XS553988) engaged 4 VC at 2340 hrs resulting in 1 VC KIA (BC) and 3 VC KIA (Poss).  Bn (-) continued opns in THO MO (XS556983).  Co B conducted airmobile assaults into (XT570102 and XT573103).  At 1000 hrs. a Vietnamese interpreter was killed by a booby trap at (XT573103).  All units closed into fwd base camp at 1510 hrs.  Medcap treated 225 patients.

22  Oct  1966

1st Bn (Mech),  5th  Infantry

     Co A continued operation from a fwd base (XT687104) in TAN PHU TRUNG.  Bn commenced a S&D opn in the HO BO WOODS (XT573281) to (XT585302) at 0800 hrs.  At 1058 hrs  Co B destroyed 2 VC structures (XT600253).  Co B received 2 rifle grenades at 1115 hrs (XT96255) resulting in 1 WIA.  One APC hit an AT mine (XT96255) at 1128 hrs, resulting in light damage.  Five booby trapped bunkers were destroyed (XT596256) at 1135 hrs.  Co B was engaged by an estimated VC squad (XT599274) at 1218 hrs resulting in one WIA.  Co B employed Arty and AW fire with unknown results.  Co B closed into the Bn fwd base (XT588281) at 1630 hrs.  Recon plat sustained 2 WIA at 1138 hrs when an APC was hit by an AP round (XT588281).
   (P9)

                         1st Bn,  27th  Infantry

     Bn defended the base camp sector and continued improvement of the bunker/barrier line.  Medcap in TAN PHU (XT488185) treated 108 persons.

                         2nd Bn,  27th  Infantry

     Recon plat conducted an airmobile assault at 0630 hrs into (XS579983).  A roadblock was established and checkmate opns conducted at (XS578983).  Ten VCS were apprehended between 0700 and 0951 hrs.  At 0750 hrs, one platoon Co B established a roadblock at (XS579583).  Recon platoon and Co B plat completed checkmate opns at 0951 hrs and conducted S&D opns enroute to the fwd combat base.  Co A conducted S&D opns (XS574967) and returned to fwd base at 1455 hrs with negative contact.  Medcap in THO MO (XS5698) treated 15 persons.

23  Oct  1966

1st Bn (Mech),  5th  Infantry

     Bn (-) conducted S&D opns in the HO BO WOODS (XT5929).  Co B engaged 4 VC with mortars and Arty (XT587306) resulting in 2 VC KIA (Poss).  Co B sustained 1 WIA at 1430 hrs (XT596303) when a vehicle was engaged by recoilless rifle fire.  At 1440 hrs, an APC was hit by an AT rd resulting in 2 KIA and 2 WIA.  Co B located and destroyed 4 VC structures, 2 tunnels, 8 bunkers, 400 lbs of rice, 500 piastres, and misc. documents.  Co C destroyed 38 bunkers and 5 bicycles at 1300 hrs (XT583309).  At 1715 hrs, Co C closed into the Bn fwd base (XT5988281) and engaged 9 VC outside the perimeter resulting in 2 VC KIA (BC) and 1 VC KIA (poss).  Co A continued operations in TAN PHU TRUNG (XT6711).  Two platoons conducted airmobile operations into (XT700132, XT701135).  One old VC body was found at (XT694134).  2 VC structures,  3 bunkers,  and 3 sampans were destroyed in the objective area.  Co A closed into their fwd combat base (XT6711) at 1710 hrs.

                               1st  Bn,  27th  Infantry

     Co A conducted Eagle Flight opns at 0947 hrs into (XT4824, XT4415, XT5122, and XT5223).  At 1142 hrs, Co A destroyed 55 tons of rice (XT15220).  At 1330 hrs Co A received SA fire from (XT525230).  Co A returned fire resulting in 1 VC KIA (BC) and 1 VC WIA.  The WIA led Co A to a tunnel in which 1 US M1 carbine, 1 45 cal pistol, and misc. documents were found.  At 1555 hrs, 1VCS was captured (XT448158).  2 VCS were captured (XT446158) at 1600 hrs.  All elements closed CU CHI at 1650 hrs.

                                2nd  Bn,  27th  Infantry

     At 0209 hrs, a scout dog alerted his handler to enemy presence forward of the Bn forward base perimeter, (XT555985).  At 0220 hrs, an unknown number of VC detonated a trip flare positioned by Co A.  Small arms, claymore mines, mortars, and automatic weapons were immediately employed by the VC against the Bn perimeter.  Bn returned fire and the VC broke contact.  Co A and Co B conducted a reconnaissance of the battle area at dawn.  Enemy 60mm and 81mm mortar positions were found (XS564983) and (XS564969).  Remains of 2 VC were found at (XS559986) and an additional 5 VC KIA (BC) were found at (XS561586).  One VCC and 1 VCS were apprehended in the battle area.  Five Chicom claymores, 11 rifle grenades, 5 - 51mm rds, 5 - 60mm rds, one assault rifle, and misc. documents were also found.  The VC had dug 20 fighting positions in preparation for the attack.  The Bn had negative casualties.  Medcap in THO MO (XS 5689) treated 95 persons

(p10)


                              24  Oct  1966

1st Bn  (Mech),  5th  Infantry

     Bn continued S&D opns in the HO BO WOODS (XT558281).  Co C sustained 1 WIA (XT584285) at 0940 hrs from a sniper.  At 1230- hrs, Co C destroyed 3 bunkers (XT579287).  Bn (-) commenced return to CU CHI at 1300 hrs.  At 1330 hrs, Co B located a VC base camp (XT597266) consisting of 20 bunkers and two trenches.  At 1650 hrs, Co C destroyed a booby trap factory and 20 booby traps, 600 lbs of TNT, one claymore                         All elements closed CU CHI base camp at 1800 hrs.  Co A continued operations in TAN PHU TRUNG (XT6711) with negative contact.  Recon plat engagd 2 VC at 1100 hrs (XT573277) resulting in 2 VC KIA (Poss).

                              1st  Bn,  27th  Infantry

     Plat Co A conducted S&D opns west of CU CHI (XT607154) at 1000 hrs.  One 105mm dud was destroyed (XT623137) at 1047 hrs.  All elements returned to base camp at 1303 hrs.  3 B 1/27 Inf replaced 2 B 1/27 at TRANG BANG (XT487192) as A 1/8 Arty security force.

                               2d Bn,  27th  Infantry

     Bn conducted airmobile extraction from the forward combat base.  All elements closed  CU CHI base camp at 1530 hrs.
          25 Oct  1966          

1st  Bn  (Mech),  5th  Infantry

     Co A continued operations in  TAN PHU TRUNG (XT6711).  At 0800 hrs, two platoons conducted a detailed search of (XT648103) and (XT650396).  One VCS base (XT687104) at 1151 hrs.

                                1st  Bn,  27th  Infantry

     Bn conducted a two company airmobile assault utilizing ten LZ's surrounding the objective (XT530212).  The assault commenced at 0825 hrs.  At 1450 hrs, supporting plat of the 34th Armor returned fire on 2 VC snipers resulting in 2 VC KIA (BC) (XT530214).  Four structures were destroyed by Co B (XT516207).  Co B was extracted at 1650 hrs.  Co C was resupplied and remained in the obj area overnight

                                 2d  Bn,  27th  Infantry

     Bn continued to defend CU CHI base camp sector and continued improvement of the bunker / barrier line.
       26   Oct  1966

    1st  Bn  (Mech),  5th  Infantry

     Co A departed its forward combat base (XT687104) in TAN PHU TRUNG at 1000 hrs and returned to CU CHI at 1046 hrs.  Co B conducted ambush patrolling in  BAO CAP (XT633178).  Medcap in  TAN PHU TRUNG (XT6809) treated 55 patients.

                              1st Bn,  27th  Infantry

     Co C continued S&D operations in (XT517210).  Two daylight ambushes were established at (XT525213) and (XT521207).  At 1500 hrs, Co C moved to (XT537232) and set up a company base.




                           2d  Bn,  27th  Infantry

     Co C conducted an airmobile assault into (XT606069 and XT587049) at 1300 hrs.  Co B was Bn reaction force at CU CHI.  Recon and Security by plat provided security for B 1/8 Arty at (XT6111).  At 1315 hrs 2 VCS were captured (XT580050).  Co C returned to base camp at (XT509141).

                                                       (p11)

27  Oct  1966

1st Bn  (Mech),  5th  Infantry

     Bn (-) conducted Reconnaissance in force / S&D opns (XT5214).  At 1205 hrs,  Co A captured 1 VCC (XT498154) with a pistol belt, 1 hand grenade, 25,000 piastres, and misc. documents.  Bn (-) established a fwd combat base at (XT509141).

                               1st  Bn,  27th  Infantry

     Bn conducted maintenance of equipment and base camp defense.  Scheduled_”Buddy” opn was cancelled due to lack of aircraft support.

                               2nd  Bn,  27th  Infantry

     Co A conducted an airmobile combat assault into (XT5608 and XT5708) at 1127 hrs.  Four booby traps were destroyed at 1233 hrs (XT572087).  At 1585 hrs, 1 tunnel and 1 VC grenade were destroyed (XT572087) and 1 VCC and 3 VCS were captured at (XT586084).  Medcap at  DUC HANH B treated 120 patients.

                                              28  Oct  1966

                              1st Bn  (Mech),  5th  Infantry

     Bn (-) forward combat base was established at (XT509141).  Co A conducted S&D opns (XT5015).  At 0830 hrs, Co A captured 1 VCS (XT552155).  At 1510 hrs, two bunkers were destroyed (XT509158) by Co A.  The company returned to the fwd combat base at 1600 hrs.  Co C conducted S&D opns at (XT5114).  At 1225 hrs, two grenade booby traps and one punji pit were destroyed by Co C (XT515143).  All elements returned to the fwd combat base at 1520 hrs.  Co B continued civil affairs and security opns in TAN PHU TRUNG (XT5910).

                              1st  Bn,  27th  Infantry

     Co B commenced a combat assault into (XT535195) at 0755 hrs.  At 0825 hrs, Co B destroyed 1 - 105 dud (XT550189).  At 0945 hrs, Co B completed search of the objective (XT535195) and was airlifted to (XT5127) at 1000 hrs.  At 1010 hrs, 2 VCS were captured at (XT508277).  2 VCC were captured at (XT513272).  Upon completion of the search at 1140 hrs (XT5127), Co B commenced Eagle Flight resulting in 1 VC KIA (BC) (XT481242).  1 VCS was captured (XT507216) at 1310 hrs.  Arty was directed on 6 VC at (XT514207) resulting in 6 VC KIA (Poss).  Co B returned to base camp at 1400 hrs.   Co C was positioned at TRANG BANG at 0841 hrs as a reaction force for Co B.  Co C returned to base camp at 1400 hrs.
                         2nd  Bn,  27th  Infantry

     Recon plat departed CU CHI at 0730 hrs to escort B 1/8 Arty to BAO THAI airstrip (XT643050).  At 0830 hrs ARVN 3/49 Inf (-) conducted a combat assault into (XT520000).  One company of the ARVN 1/49 Inf conducted a combat assault into (XT630040) at 0945 hrs.  Co B 2/27 Inf conducted a combat assault into (XT4806) at 1110 hrs.  At 1130 hrs, supporting gunships engaged 12 VC (XT477064) resulting in 5 VC KIA (BC) and 4 VC KIA (Poss).  At 1135 hrs, Co B captured 3 VCC hiding in a hole at (XT493064) and one pound of documents.  Co B captured 1 VCC at 1331 hrs (XT499067).  Two WIA       were sustained by Co B when a VC threw two hand grenades from a foxhole (XT499067).  The VC was immediately killed.  Two WIA were sustained as a result of sniper fire (XT499067) at 1515 hrs.  Co B was extracted at 1520 hrs.  ARVN elements reported 5 VC KIA (BC), 7 VCC, and 1 pound of documents captured.

                                                       (P12)

29  Oct  1966

1st  Bn  (Mech),  5th  Infantry

     Bn (-) conducted an S&D opns (XT5015)  (XT5315) commencing 0730 hrs.  At 1224 hrs, Co C found and destroyed 1 Chicom AT mine at (XT535150).  At 1555 hrs, an APC detonated an AT mine (XT548151) resulting in minor damage.  Co A established a forward combat base at (XT525141).  Bn (-) closed into CU CHI at 1840 hrs.  Plat Co B escorted C 2/13 Arty to TRANG BANG

                                  1st  Bn,  27th  Infantry

     Bn (-) conducted an airmobile “Buddy” opn with 6 PF Co's from TRANG BANG (XT4819) and GO DAU HAU (XT3825).  At 0840 hrs, Co A departed for TRANG BANG.  Co A commenced Eagle Flights at 1355 hrs.  Five VCS were apprehended at (XT430242) and (XT46250).  PF elements captured 9 VCC, 8 VCS, 2 US carbines, 2 Chicom carbines, 2 hand grenades, and a 50 pound medical chest.

                                   2nd  Bn,  27th  Infantry

     Bn continued to defend CU CHI base camp sector.  All companies conducted mortar training.

                              30  Oct  1966

                              1st  Bn,  (Mech),  5th  Infantry

     Co A conducted “Bushmaster” opns at (XT525142) with negative contact.  During the day, S&D opns were conducted in (XT527146) with negative contact.  The company base remains at (XT525142).

                                  1st  Bn,  27th  Infantry

     First plat, C 1/27 Inf replaced third plat B 1/27 Inf as security for B 2/13 Arty at  TRANG BANG.  The exchange was airmobile.  Bn conducted refresher training.  Co B ambush patrol engaged 2 VC at 2145 hrs  (XT600137) resulting in 2 VC KIA (BC).

                                    2nd  Bn,  27th  Infantry     

     Co A and Co C conducted an airmobile assault into (XT4706) and (XT4707) supported by B 1/8 Arty at DUC LAP airstrip (XT545050).  At 1055 hrs, Co A received 60mm mortar fire and AW fire from (XT476059) resulting in 1 WIA.   Fire was neutralized by gunships and Arty.  At 1152 hrs, Co A found 3 hand grenades, 1 VC field pack, and 5 lbs of documents at (XT475064).  Co A sustained 2 WIA (XT480065) at 1235 hrs from sniper fire.  Fire was returned immediately resulting in 3 VC KIA (BC), 4 VC KIA (poss).  At 1530 hrs Co A destroyed 1 VC structure (XT486066).  All elements closed base camp at 1730 hrs.  During the operation, RCA was employed using UH18 helicopters (XT523991) with a 10 knot wind from the NE.  The target was a VC supply route

31  Oct  1966

         1st  Bn  (Mech),  5th  Infantry

     Co A completed “Bushmaster” and S&D opns in THAI MY (XT5214) returning to CU CHI base camp at 1255 hrs.  Co C; conducted S&D opns in TAN PHU TRUNG (XT695105) with two platoons for Eagle Flights and one platoon on the ground.  Co C at 1500 hrs found 1 VC bedroll and misc. clothing (XT711112).  An extensive tunnel complex was discovered at (XT702102).  Exploitation was halted due to darkness and will resume 010700 Nov.  Gunships supporting the operation engaged 2 VC resulting in 1 VC KIA (BC) and 1 VCC captured.

                         1st  Bn,  27th  Infantry

     Co B conducted Eagle Flights in TRANG BANG District.  12 VCS were apprehended.  All elements closed CU CHI base camp at 1147 hrs.

                                             (p13)

                         2nd  Bn,  27th  Infantry

     Bn conducted refresher training and continued to defend CU CHI base camp sector.

1  Nov  1966

        1st  Bn,  (Mech),  5th  Infantry

     Co C continued exploitation of the tunnel complex (XT702102).  A large ammo cache which included 1 US 45 cal. SMG was found in the tunnel at 1010 hrs.  At 1745 hrs, Co C destroyed the tunnel complex.  Bn (-) conducted maintenance of vehicles and equipment.

                         1st  Bn  27th  Infantry

     Bn came under Opcon of the 196th Inf Bde.

                         2nd  Bn,  27th  Infantry

     Bn (-) established a forward combat base at DUC HANH B (XT576078) and conducted revolutionary development operations.  Construction of the forward base and repair of the road network was begun.  Co A remained at CU CHI to defend the base camp sector.

2  Nov  1966

1st Bn  (Mech),  5th  Infantry

     Bn conducted maintenance of vehicle and equipment in preparation for opn commencing 030615 Nov 66.  Co C completed opns in TAN PHU TRUNG and closed CU CHI at 0900 hrs.

                               2nd  Bn,  27th  Infantry

     Co B conducted revolutionary development opns in DUC HANH B (XT576078).  Co A and Co C continued defense of CU CHI base camp sector.  

                               3    Nov    1966

                         1st  Bn  (Mech),  5th  Infantry

     Bn commenced an attack into (XT6322) at 0615 hrs.  Co A captured one rifle grenade, 1 US carbine,  1 M1 rifle, 106 - 75mm rds,  124 fuzes,  6 blocks of C4, and 30 SMG magazines at XT655232) with the assistance of a CHIEU HOI.  Co A established a base (XT655321) at 1800 hrs.  An unknown number of VC were engaged by Co B (XT614227), resulting in 3 VC KIA (BC).  Two Chicom assault rifles, two claymore mines, and one VC grenade were captured.  At 1605 hrs, one APC detonated an AT mine (XT646237) resulting in 1 WIA and minor vehicle damage.  Two bunkers and one CBU bomb were destroyed at 1645 hrs. (XT647238).  Co B established a base (XT647241) at 1725 hrs.  At 1000 hrs, Co C destroyed 1 VC booby trap (XT613243).  An unknown number of VC in a bunker were engaged by Co C at 1253 hrs (XT638239).  The VC broke contact at 1700 hrs.  Co C sustained 2 KIA and 3 WIA.  Bn (-) and Co C established a base at (XT635235).  B Trp, 3 /4 Cav had one APC detonate an AT mine (XT650210) at 0902 hrs, resulting in 1 WIA and extensive vehicle damage.  At 1206 hrs, 2 APC's hit AT mines (XT643227) resulting in 2  WIA.  Six bunkers and three tunnels were destroyed (XT642227) at 1400 hrs.  Trp B established a Co base (XT642228) at 1800 hrs.

                         2nd  Bn,  27th  Infantry               (p14)

       Bn (-) continued to conduct revolutionary development opns in DUC HANH B (XT576078).  At 1335 hrs, one plat, Co A moved to (XT617146) to destroy a VC tunnel.  The tunnel was destroyed and the patrol returned to base camp at 1517 hrs.  Bn (-) returned to CU CHI at `1835 hrs.  At 1620 hrs, Bn was alerted to commit Bn HQ and 1 Co in support of 196th Inf Bde within two hours.  One company was alerted for commitment on 4 Nov.  Bn HQ and Co A came under Opcon of 196th Bde at 18800 hrs.  2/27 Inf terminated Operation KAILUA 032400 Nov 66.

4  Nov  1966

1st  Bn  (Mech),  5th  Infantry

     Bn conducted S&D / reconnaissance in force opns (XT6523).  Co A destroyed 1 - 155 rd, one bunker, one trench (XT644226), 1 AT mine, one 105 rd, and three booby trapped Chicom grenades near the entrance to a tunnel  (XT645228).  Co B located a VC base area (XT626245) and a bunker (XT641235), which contained 4 M-79 rds and a pistol belt.  At 1005 hrs, Co B found a weapons cache (XT644237) which contained 1 US M-1 rifle, 1 30 cal MG,  1 US BAR,  6 Chicom carbines, SA ammo, 2 claymore mines, explosives and 2 - 155 duds.  Seven bunkers were destroyed by Co C at 1130 hrs (XT641237).  At 1250 hrs, Co C discovered 3 bunkers that were booby trapped with 14 CBU bombs, 2 - 81mm rds, 1  105 dud, and 1 - 8 inch rd, (XT638231).  A Co C APC detonated an AT mine resulting in 2 WIA and minor damage (XT588203).  Co B received SA fire at 2123 hrs (XT579189).  Fire was immediately returned resulting in 1 VC KIA (Poss).  Bn (-) closed base camp at 2350 hrs,.  B Trp, 3 /4 Cav established an outpost at (XT628198).  Co A continued to move through the night.

5  Nov  66

1st  Bn  (Mech),  5th  Infantry

     Co A closed into base camp at 0630 hrs.  B Trp, 3 /4 Cav was engaged by an RPG-2, SA, and rifle grenade fire, resulting in one APC damaged,  1 KIA, and 5 WIA.  Fire was immediately returned.  During the 20 minute fire fight, Trp B sustained 4 WIA.  Arty fire was adjusted on the enemy and the VC broke contact.  All elements returned to base camp at 1225 hrs.  Co B moved to GO DAU HA and closed at 1730 hrs.  At approximately 2215 hrs, an aerial observer reported a 50 - 60 vehicle convoy crossing the Cambodian - Vietnam border (XT2824).  Lead elements of Co B occupied positions (XT301250) at 2230 hrs to intercept the convoy.  The Bn (-) was alerted and moved to an assembly area (XT416238) at 0155 hrs.  No contact was made.
6  Nov  1966

1st  Bn  (Mech),  5th  Infantry

     Bn attached to 1st Infantry Division at 060700 Nov  66.

7 - 14  Nov  1966

During this period, all elements of the Brigade, with the exception of Brigade HQ were attached to
other units participating in Operation ATTLEBORO.  On 10 Nov 66, 2nd Bde officially commenced Operation ATTLEBORO.  Operation KAILUA terminated on 14 Nov 66,

                              (p15)

12. Results:

a. Enemy Losses

VC KIA (BC)     67               SA ammo            7,006
VC KIA (Poss)     175               Arty duds            27
VCC -           34               Documents -           80 lbs
VCS          112               Sampans          15
Rice          7.8 tons               TNT                600 lbs
Small Arms     22               Piastres -           81,500
Structures     167               75mm  RR  ammo     106 rds
Tunnels          16               CBU               40
Mines          24               MG               1
Hand Grenades     8               RPG - 2               22rds
Bunkers          120  

b. Friendly Losses:

KIA          5
WIA          64
DOW          1
APC  M113     Combat loss - 2     

12.  Administrative Matters:

a.  Supply:  Resupply activities were based out of the Division base at CU CHI.  Resupply was by use of UH1D and CH-47 helicopters.  No supply problems were encountered during the operation.     

b.  No problems were encountered in any other area.

13. Special Equipment and Techniques:  Scout-dogs were used by battalion on the perimeter of forward combat bases to advantage.  The dogs provide early warning, particularly in dense areas where visibility is poor.

14.   Commander's Analysis:     None

15.   Recommendations:          None

     FOR THE COMMANDER:

                              FRANKLIN D. LUKSIK
                              Captain,  Infantry
                              Adjutant



                              (p16)

     ADDENDUM to Combat After Action Report  (Operation KAILUA)

     Psyops. / Civil Affairs:

a.  General:  During the period 12 Oct - 14 Nov 66, the Brigade S-5 Section participated in Operation KALILUA in the province of HAU NGHIA.  This operation was highly successful from a Civil Affairs standpoint.

b.  Accomplishments:

(1)  A total of 19 MEDCAP's were conducted by battalion surgeons, treating 2,511 Vietnamese National patients.

(2)  The following Helping Hand items were distributed during this period:

(a)     Clothing:     Approximately 5,760 lbs.
(b)     Foodstuffs:     Approximately 2,350 lbs.
(c)     Candy:          Approximately 127 lbs.
(d)     Soap:          169 bars.
(e)     Shoes:          123 pairs.
(f)     Women's Purses:    55 each.
(g)     Raincoats:     15  each
(h)     School tablets:     150 each

(3)  A total of 14 leaflet air drop missions were flown by S-5 personnel, or in support of 2nd Bde, by Psyop team from 246th Psyop Co and Div G-5, air dropping approximately 156,000 leaflets.  In addition,  approximately 14,400 leaflets were handed out by battalions in area of operations

(4)  A total of seven detainees were returned to the area from which evacuated.  Each detainee was given a “solatium” box from Helping Hand.

(5)  Three Vietnamese amputees were transported by the Bde S-5, from PHUOC HIEP (XT5517) to the Amputee Hospital in SAIGON  for fitting of artificial limbs.  The Bde S-5 presented the family of these amputees a gift of 500 $VN to enable them to pay transportation costs from PHUOC HIEP to SAIGON and return, to visit hospitalized members of the family.  

(6)  In DUC HANH “B” (XT5707), the 2/27 continued work on road repair, outpost, and playground.  The 1/5 strung 500 meters of barbed wire around school in TAN PHU THUNG (XT6810).



FRANKLIN D. LUKSOK
Captain,  Infantry
Adjutant