"Mia Pen Rai Cop"

In the "Land of Smiles"


   United States of America                                          Kingdom of Thailand



US Department of Labor categorizes ALL who served during the Vietnam War years are Vietnam Era Veterans,. 

We are Thailand Veterans of the Vietnam War 

You have reached the United States Army Support, Thailand Association website, dedicated to working with our fellow Veterans seeking fair and equal treatment and compensation with the Department of Veterans Affairs for suffering the ailments and symptoms of herbicide exposure (Agent Orange) used on ALL U.S. military bases during the War in Southeast Asia.

There are several parts to the USARSUPTHAI ASSOCIATION - 

  1. The website ( where we have site members, maintain photos and documents and publish a USARSUPTHAI online Directory - If you get an email verifying your information it's to determine who is still among us and active in the association. If you are not on our website as a site member, simply create a profile (include your full name, city, state and your time in Thailand) it will be picked up on our Directory. 

  2. The email list is where we exchange official emails to our members (some do not use Facebook) so use this link:  and if you want to unsubscribe from our group email list use this link: and to send emails simply create and send a new email to: or reply to an email you wish to respond to.

  3.  Join us on our USARSUPTHAI FB group

  4. Join our Thailand Laos Cambodia Veterans FB group

  5. Visit the 519th Transportation Association Thailand

USARSUPTHAI is organized as an online Veterans group.

Vice President Barry P. Meyer ( updates our online Directory making corrections, deletions and note of deceased members.

Sergeant At Arms Frank Marsh is the Senior Admin of our Facebook Group.

FYI (for your information) ? You do not have to have been assigned to USARSUPTHAI, but a member of the DOD stationed in Thailand, you are welcome and ask to be listed in our Directory so that others searching may be able to find you a bit easier.


Joseph J. Wilson, Jr.  Co-Founder & President

Barry P. Meyer - Vice President

Frank Marsh - Sergeant At Arms



The Directory contains all members that have provided Thailand assignment information 

Yahoo Data Current as of: 01 SEP 2020 (To be Deleted 31 DEC 2022
Facebook Data Current as of: 15 NOV 2021
Groups IO Data Current as of 01 SEP 2020
WEBS Data Current as of 01 SEP 2020
MeWe Data Capture in Process
The Directory contains a Data Sheet that you can copy, enter your data, and submit per below.

See if your information is correct; Search for somebody by name, unit, base, location, dates...send correct data to ADMIN or contact admin .......

This is not a Department of Defense website!

While information on the internet is plentiful, it's hard to find a starting point. Let us be that starting point! This site is intended to be a place where online organizations and Veterans groups will find information concerning Army units stationed in Thailand under the command and/or operational control of the United States Army Support, Thailand (USARSUPTHAI).

ADMIN NOTE: The site member portion of this website is a good place to make yourself know to our group, but in order to have real time interaction (one on one) I suggest that you join us on Facebook or on our Yahoo Groups email server.

The USARSUPTHAI Association is an organization about Thailand based Army units for personnel, online organizations and veterans groups.

Created 4/22/2009 

President, Co-Founder & Webmaster: Joseph J. Wilson, Jr. (

Vice President and Admin Officer: Barry P. Meyer (


The USARSUPTHAI ASSOCIATION is proud to announce our “USARSUPTHAI” Reunion 27 – 30 June 2024 at the Thousand Hills Resort Hotel (formerly Radisson Hotel Branson), 120 S. Wildwood Dr., Branson, Missouri 65616.

“USARSUPTHAI Reunion” information is available on USARSUPTHAI FB Events.

The Thousand Hills Resort Hotel

Make your hotel reservation for “USARSUPTHAI” Reunion by calling 1-888-566-5290 before cutoff date 27 May 2024

To obtain the THAILAND REUNION rates:

 Double Queen Room @ $101.95 per night (+12.1% tax)

 Handicap Accessible @ $101.95 per night (+12.1% tax)

Guaranteed group rates have been extended from 24 June – 3 July 2024 for our guests who wish to arrive early or depart after the reunion.

Check in begins at 4:00 pm on Thursday 27 June 2024, and check out at 11:00 am on Sunday 30 June 2024. We have reserved a block of 30 rooms and a hospitality (meeting) room open daily.

The focus on this reunion will include a discussion on “HOW THE PACT ACT AFFECTED MY CLAIM” AT 9am on 29 June 2024 conducted by – Joe Wilson

Reunion attendees will receive a Branson 2020 lapel pins (we didn’t do 2024 pins) with their paid registration.


An Overview US Army in Thailand

During Vietnam War (Era)

1962 - 1976



After WWII, the occupation of Japan and the Korean War armistice the United States was instrumental in putting together an Asian equivalent of NATO with the signing of the Manila Pact signed on 8 September 1954 leading to the creation of the Southeast Asian Treaty Organization (SEATO) and headquartered in Bangkok in 1955. SEATO was considered a concept of anti-communist collective defense to Southeast Asia whereby the military forces of each member were intended to be coordinated to provide for the collective defense of the member states.



During the 1950’s the civil war in the Kingdom of Laos grew and by the early 1960’s the Kingdom of Thailand requested and received assistance when it seemed that this internal war would spill over and into its borders.


The first US combat troops were stationed at Bangkok’s Don Muang Royal Thai Air Force Base, and consisted of 4 combat aircraft stationed on alert beginning April 1961. As communist aggression increased in the region by 1962 priority for US intervention to Thailand was favored over that in Vietnam. It wasn’t until the “Gulf of Tonkin” incident that President Johnson committed US forces to Vietnam, while bolstering US troop strength in Thailand as well.


Due to the nature of the “Gentleman’s Agreement” between Thailand and the United States that prevented other nations from knowing the full extent of the US involvement to protect its ally, all communications and/or news “officially” proclaiming the extent of this involvement was banned by the Thai government.


Officially all bases were “Royal Thai Bases” and were commanded by Thai commanders, yet command of US troops was retained by the United States. News and news organizations were not permitted to name actions originating from Thailand and US personnel were not given official recognition for injuries received in actions in Thailand.*


This became a “Secret War” and still today said recognition is being sought by personnel who were there “unofficially”.


The most noticeable were the air crews who flew combat missions into North and South Vietnam, Laos and even Cambodia.


Not seen were the Army Special Forces personnel training Royal Thai Police and Royal Thai Army units and personnel to fight Communist Thai (CT) and NVA insurgents throughout Thailand.


There were US Coast Guardsmen manning LORAN stations in not so noticeable locations throughout central and northern Thailand. US Army Engineers carved bases and roadways out of virtual jungle in demanding weather conditions?


Also unseen were the huge number of support troops who manned radio stations, field hospital and aid stations, motor pool dispatch offices and unit orderly rooms.


There were the military police and “top secret” recon patrols keeping an eye on things on “both” sides of the Mekong River.


It has been said that an army moves on its stomach. Well that stomach has to be fed. That is the job of the cooks and food preparation specialists. Before they can begin preparing their meals those rations and supplies have to be transported and disbursed to the respective bases and organizational mess or dining halls.


Another thing that fuels an army is funds. Everyone loves payday. Monies are received and paid out to various businesses and injected into the local economy through employment of local nationals at every level of the military. Military bases must be protected and defended in the event of subversive attacks.


Each of these unique functions is the specific responsibility of a host of military units of the various services within the US Department of Defense.


It is next to impossible to do justice to the virtually hundreds of military commands and organizations who made up this backbone within Thailand, yet each one is vitally important to the success and survival of the others.


I want to focus on facts that helped keep the Kingdom of Thailand from almost certain domination by the increasing communist threat in the region of Southeast Asia.



The US Army’s IX Corps located at Fort Buckner on Okinawa was the parent organization for US Army Special Forces units operating throughout Southeast Asia from early 1960’s throughout the mid 1970’s and for the 9th Logistical Command (B) and would later become the 9th Regional Support Command and ultimately the 9th Theater Army Area Command at Camp Zama, Japan in 1994.



In May 1962, the Military Assistance Command, Thailand was formed in Bangkok.


SEATO Exercise Air Cobra

In 1962 the escalation of hostilities in Laos led to SEATO Exercise Air Cobra taking place in Thailand with United States and Australian military forces as a show of force and solidarity with Thailand. As the hostilities began to subside and at the request of the Thai Government the 809th Engineer Battalion (Construction) prepared to begin construction of the Bangkok By-Pass Road from Chachaengsao to Kabin Buri.


JTF 116

In May 1962 Joint Task Force 116 (Army, Air Force and Marines) was created to conduct military operations along the Laotian border areas in support of Royal Thai military forces. Many of the units comprising the joint task force were stationed in Korea, Okinawa and Hawaii. This task force comprised of a Marine Battalion Landing Team (BLT), the 1st Battle Group, 27th Infantry (25th Infantry Division) and supporting elements under a detachment of the 9th Logistical Command. In August 1962, they were joined by an army aviation company composed of Caribou aircraft and the 1st Battle Group, 35th Infantry (25th Infantry Division) replaced the 27th Infantry. The task force was withdrawn in November 1962 after the situation in Laos stabilized.



9th Logistical Command (B)

Elements of the 9th Logistical Command (B) remained in Thailand as an administrative and logistical support headquarters overseeing the Communications Electronics Base, Thailand, Korat Army Depot and various construction projects, including the Sattahip Port Complex and the extension of the Bangkok By-Pass Road from Sattahip to Korat. All other 9th Logistical Command units moved from Okinawa to join the headquarters in Thailand. The 9th Logistical Command (B) was inactivated on 12 June 1970 at Camp Samae San, Sattahip.




On 25 April 1966 the United States Army Support Command, Thailand was activated on Okinawa and elements began deploying to Thailand on 17 October with the rear detachment closing on Camp Friendship on 15 November 1966. On 1 January 1967 USARSUPTHAI officially assumed command and/or operational control over all Army units in Thailand. The USARSUPTHAI was inactivated on 1 July 1974 at Camp Samae San, Sattahip.


The missions of USARSUPTHAI are as follows:

(1)     Tactical: Provide the U. S. Army nucleus for a unilateral, bilateral or combined tactical headquarters to conduct ground combat operations in Thailand;

(2)     Training: Conduct continuing OJT (on-the-job training) of assigned Army units;

(3)     Planning: Conduct U. S. Army planning to support joint operational plans for current operations and contingency U. S. unilateral, bilateral and SEATO plans;

(4)     Management: Exercise command management supervision of U. S. Army construction programs, logistic operations, real property, facilities and project stocks; and

(5)     Logistical and Administrative: Provide

(1)     Logistical support to U. S. Air Force operations in North Vietnam and Laos and

(2)     U. S. Army and joint service support as directed.



All Army units in Thailand came under the operational control of USARSUPTHAI and played a vital part of the war in Vietnam and early on:




Detachments of the 46th Special Forces Company (Airborne) operated with and trained Royal Thai Army and Royal Thai Police personnel and provided medical support to a number of remote villages throughout northern Thailand. 



The 428th Medical Battalion had responsibility for 2 field hospitals, the 5th Field Hospital in Bangkok and the 31st Field Hospital in Korat, plus a number of dental and medical detachments.  



The 44th Engineer Group had overall responsibility for building infrastructure and roadway nets that would link each military base together, providing better access in an area primarily consisting of jungle growth utilizing units of the 809th Engineer Battalion and other engineer assets brought in for that specific purpose (quite a huge undertaking, even by today’s standards). The 697th Engineer Company (Pipeline) had the responsibility for constructing buildings, huge “Tank Farms” for fuel storage facilities, all the buildings and even the plumbing for every base in Thailand.  



The 596th Quartermaster Company arriving in Thailand as part of the US Strike Command had the responsibility of operating those massive “Tank Farms” for each of the airbases to be used by United States Air Force personnel and fell under the 9th Logistical Command (B).




The USA STRATCOM Signal Battalion, Provisional had the responsibility of building and maintaining critical communications networks and links that would tie these military bases to the rest of the US Army forces in Southeast Asia and beyond.



The transportation needs of US forces would be met by two transportation battalions, the 499th Transportation Battalion (Terminal) and the 519th Transportation Battalion (Motor Transport).


The 499th was responsible for receiving cargo in country at the Deep Water Ports of Sattahip, the Ammunition Piers at Vayama and the Peers in Bangkok.


The 519th was responsible for transporting much of this cargo (in concert with the local ETO Company) from the ports all the way to destination (more than 1066 highway miles) utilizing Trailer Transfer Points strategically placed enroute at critical points (Sattahip, Korat and Khon Kaen).


The lifeblood of the entire US military operations depended upon their success.



These are the major commands that controlled much of the Army’s assets in Thailand:


Joint US Military Assistance, Thailand

Joint US Military Advisory Group, Thailand

Joint US Military Advisory Group, Thailand, Support Group, Provisional

Joint US Military Advisory Group, Thailand, Support Group A

US Army Bangkok Area Command, Provisional

US Army Depot, Thailand, Provisional (later 501st Field Depot)

US Army Sattahip Area Command, Provisional

US Army Special Troops, Bangkok

US Army Special Troops, Korat

US Army Special Troops, Sattahip

US Army Support Command, Thailand

9th Logistical Command (63 – 70)**




* United States Air Force in Thailand -  

**Appendix B - The US Army in Thailand during the Vietnam Conflict (Vietnam Order of Battle – Shelby L. Stanton)


Army Units in Thailand

(Not complete listing)


1st AVN CO (Caribou) (Korat RTAFB)

1st BG, 27th INF (JTF 116)

1st BG, 35th INF (JTF 116)

1st BN, 35th INF, 25th INF DIV (JTF 116)

1st SFG, D CO (ABN) 10/66 – 4/15/67 (Lopburi)

1st SFG, HHD 3rd BN 3/31/72 – 4/74 (Lopburi)


1st SIG BN


5th MED HOSP (FLD HOSP) 5/9/66 – 11/10/70 (Bangkok)

5th MIL HIS DET 1965 (Korat)

5th RRU (Provisional) 1962 (Bangkok)

5th RRU Bangkok Became 83rd RRSOU in 9/66 - 20/70

5th RRU, DET "D" 1965 (Ramasun)

7th AIR PLT (Friendship)

7th ASA UNIT (FLD STN) 5/15/62 – 6/30/71 (Bangkok)

7th AVN DET Udorn 68-74

7th AVN DET Utapao 6/74-5/75

7th DISB SEC, DET 1 (Finance) 1965 (Bangkok)

7th MAINT BN (DS) 7/15/65 – 7/25/71 (Korat)

7th RRFS, B CO (Khao Khieo) (Ramasun)

7th US ASA (FLD STA) (Radio Research) 5/15/62 – 6/30/71 (Bangkok)

9th LOG CMD (B), DET 1(Provisional) – (Bangkok)

9th LOG CMD, HHD (LOG SPT) Apr 63 - 12 Jun 70 (Korat, Sattahip)

9th LOG CMD, PAD 55/56 (Friendship)

9th LOG CMD, PBO, Sattahip (9th Log)

9th TERM CMD (Samae San)

9th US ASA (FLD STA) SPC INT DET 1962 (Bangkok)

11th US ASA (Recon Unit) 8/1/62 – 9/1/69 (Bangkok)

12th MP DET (Criminal Investigations)

13th MP CO (Separate) 1/24/69 – 3/29/73 (Korat)

16th EN CO (DT) 8/2/67 – 1/9/71 (Boehle, Sakon Nakhon)

16th INF (Samae San)

17th MI DET (Bangkok)

20th ORD CO (DS)

21st MED DEP (MED DEP) 3/15/67 – 5/15/70 (Korat)


28th SIG CO (Friendship)

29th SIG CO

29th SIG GRP, HHD (SIG SPT) 9/12/66 – 6/30/71 (Bangkok)

31st MED HOSP (FLD HOSP) 6/1/62 – 5/15/70 (Korat RTAFB)

33rd TR PLT (REFER) 5/10/67 – 4/1/70 (Korat)

35th FIN & DISB CO (Korat)

40th MP BN (MP SPT) 3/18/67 – 12/30/70 (Korat)

41st ORD CO (DIR AMMO SPT) 3/6/66 – 9/1/66 (Korat)

44th EN GRP, HHD (CON) 12/62 – 1/1/70 (Korat)

46th SF CO (SPEC WAR) 4/15/67 – 3/31/72 (Lopburi)

47th F & A CO

53rd TR CO (CGO) 11/12/66 – 12/30/70 (Vayama, Sattahip)

54th EN CO (CON SPT) 12/20/68 – 6/15/70 (Sakon Nakhon)

55th SIG CO (SPT) 7/1/65 – 7/1/69 (Korat)

57th MAINT CO (DS) 7/20/66 – 2/20/71 (Korat)

57th MAINT CO (ORD) 4/1/63 – 7/20/66 (Korat)

57th ORD DET (DS) 1965 (Korat)

57th TR CO (Truck)

70th AVN FLT DET (Friendship)

73rd MP DET (Desk & Recpt)

83rd RRSOU Bangkok 1959-9/66

83rd US ASA Special Operations Unit (Mil Int) 1962 (Bangkok)

88th MP DET (Reg & ID)

89th MP DET (Desk & Recpt)


91st EN CO (DT) 8/7/67 – 6/15/70 (Raum Chit Chai & Kanchanaburi)

91st MED DET 1962 (Korat)

93rd PSY OPN CO (SPC WAR) 6/23/67 – 6/30/74 (Bangkok)

95th MED DET

98th ORD DET (Expl Disp)

101st ENG DET (Well Drill) (Essayons) 11/9/67

105th SIG DET (SVCS SPT) (Bangkok)

125th SIG BN, 25th INF DIV (JTF 116)

128th MED BN (Korat)

133rd MED GRP, HHD (MED SPT) 1/1/68 – 11/10/70 (Korat)

136th MED DET 1962 (Bangkok)

136th MP DET (Desk & Recpt)

138th TR DET (TTPO) (Vayama)

142nd EN CO (Samae San)

144th EN DET (DS) 11/68 – 1/12/71

145th EN CO (Samae San)

153rd APU (Type U) (Postal) (Sattahip)

162nd MED DET (Vayama)

165th TR CO (LT AMPH VEH - LARC) 4/26/67 – 11/1/68 (Utapao RTAFB, Sattahip)

167th SIG CO (RR VHF) 5/62 – 5/6/63 (Bangkok)

172nd TR DET (MOV CON) (Friendship)

182nd EN CO (Well Drill) (Sattahip) 11/9/67

193rd EN CO (Welding) (Charn Sinthope, Phanom Sarakham)

201st SIG DET (RB) (Korat)

207th SIG CO (TROPO) 4/15/63 – 7/1/69 (Korat& Khon Kaen)

219th MP CO (PHY SEC) 11/20/66 – 6/25/71 (Korat)

229th TR CO (TERM SVC) 4/30/67 – 12/20/68 (Sattahip)

233rd TR CO (TERM SVC) 11/11/66 – 12/20/68 (Sattahip)

234th EN CO (UTIL) (Vayama)

248th QM DET (Laundry & Bath) 1962 (Korat)

249th QM DET (Laundry & Bath) 1962 (Korat)

252nd MED DET (Dental Service) (Korat)

254th TR DET (Friendship)

256th AG CO (PS) 12/28/67 – 6/25/71 (Korat)

258th SIG CO (Radio Rep Avn) 1962 (Korat)

258th TR DET (Friendship)

260th TR CO (PETRO) 12/15/66 - 10/31/75 (Sattahip)

270th ORD DET (Friendship)

270th TR DET (Aircraft Rep) Korat RTAFB 69 - 71

281st MP CO (SEC GRD) 11/11/66 – 10/31/75 (Sattahip)

282nd EN DET (Water Purif) 4/27/67

291st TR CO (CGO) 2/28/67 – 6/30/71 (Korat)

302nd SIG BN, HHD (SPT) 7/14/69 – 6/30/71 (Bangkok)

302nd SIG CO (Bangkok)

303rd MP DET

304th MP DET

305th S & S Co (DS) 3/12/68 - 4/15/69) (Kanchanburi)

313th TR CO (REFER) 11/24/66 – 3/31/72 (Bangkok)

324th SIG CO (TROPO) 6/30/71 – 2/1/72 (Sattahip)

325th SIG BN, HHD (SPT) 7/14/69 – 12/31/70 (Bangkok)

331st ORD CO (Supply Depot) 1965 (Korat)

331st S & S CO (FWD REP PARTS) 7/15/65 – 12/20/68 (Korat)

334th SIG CO (SPT) 11/6/67 – 7/1/69 (Bangkok)

347th GEN DISP (Medical)

347th SIG CO (SPT) 11/6/67 – 7/1/69 (Bangkok)

362nd SIG CO (-DET) (Tropo) 1962 (Bangkok)

379th SIG BN, HHD (SPT) 8/25/63 – 6/30/71 (Sattahip)

428th MED BN, HHD (MED SPT) 6/1/66 – 1/1/68 (Korat)

442nd SIG BN, HHD (SPT - LL) 11/6/67 – 6/30/71 (Korat)

449th TR BN (TERM) 10/25/66 – 12/20/68 (Sattahip)


492nd MED DET (Dental Svc)

499th TR BN, HHC (TERMINAL) (Vayama) 10/25/66 – 12/20/68

501st USA DEPOT (FLD DEPOT) 3/18/67 – 12/20/68 (Korat)

503rd MED DET (VET R/S)


505th EN DET (WATER PURIF) 6/24/67

505th TR CO (CGO) 11/12/66 – 12/30/70 (Sattahip)

509th ASA UNIT (Ramasun)

511th SUP & SVC CO (GEN SPT) 1/5/67 – 12/20/68 (Korat)

513th MP DET 1965 (Friendship)

513th MP PLT 1962 (Friendship)

515th QM DET (Refer Opns & Maint) 1962

518th ORD CO (GAS)

519th TR BN, HHD (TRK) 12/16/66 – 2/20/71 (Korat)

523rd MED AMB DET 67 - 68 (Korat)

528th EN DET (UTIL) 6/15/70 (Friendship, Korat)

531st EN DET (UTIL)

538th EN BN, A CO (CON) 7/14/65 – 6/15/70 (Essayons)

538th EN BN, B CO (CON) 7/14/65 – 6/15/70 (Essayons)

538th EN BN, C CO (CON) 7/14/65 – 6/15/70 (Sungwein)

538th EN BN, D CO (CON) 7/14/65 – 6/15/70 (Nit Noy, Samae San)

538th EN BN, HHD (CON) 7/14/65 – 6/15/70 (Essayons)

549th EN DET (CA)(Friendship, Korat)

549th QM CO

555th SUP CO

556th MAINT CO (LT DS) 2/7/68 – 7/1/69 (Kanchanaburi)

558th ORD CO (PARK) 1965 (Korat)

558th S & S CO (GS) 3/17/66 – 7/1/69 (Kanchanaburi)

558th S & S CO (HVY MS) 7/15/65 – 12/20/68 (Korat)

561st EN CO (CON) 8/10/63 – 6/15/70 (Raum Chit Chai & Kanchanaburi)

562nd MAINT CO (LT DS) 1/13/67 – 6/25/71(Sattahip)

562nd MED DET (Dental Service)

569th TR CO (CGO) 12/1/67 – 4/1/70 (Khon Kaen)

579th QM DET (Graves Reg) 1962 (Korat)

580th QM DET (Supply 1962 (Korat)

581st QM DET (Petrol) 1862 (Korat)

582nd EN DET (Fire Fighting) 6/24/67

589th EN DET (Utility)

590th S & S CO (DS) 9/30/63 – 12/20/68 (Korat)

593rd EN CO (CON) 6/6/63 – 8/1/63 (Korat)

596th QM CO (PETRO DEPOT) 6/27/66 – 12/20/66 (Sattahip)

597th EN CO (Essayons)

597th MAINT CO (DS) 5/9/66 – 9/1/69 (Korat)

597th TR CO (Vayama)

598th SUP CO

599th ORD CO (AMMO DS/GS) 5/7/67 – 6/25/71 (Sattahip)

608th Quartermaster Detachment

640th TR DET (TUGBOAT) (Samae San)

697th Engineer Company (-) (Pipeline) 8/29/65 – 12/1/69 – Camp USARTHAI – Korat

697th Engineer Company, 3rd Platoon (Pipeline) 8/25/67 – 12/1/69 – Nakhon Phanom

712th PMU CO (Medical Lab) 1967 – 1968 – Korat

720th MP BN (Friendship)

738th EN CO (SP) 3/2/63 – 7/15/65 (Korat)

809th EN BN HHD (CON) 2/22/62 – 1/30/71 (Charn Sinthope, Phanom Sarakham & Raum Chit Chai)

809th EN BN, A CO (CON) 1/30/71 (Raum Chit Chai

809th EN BN, B CO (CON) 2/22/62 – 9/25/70 (Inland Road, Lightning, Sattahip)

809th EN BN, C CO (CON) 2/24/62 – 1/9/71 (Inland Road, Raum Chit Chai, Sakon Nakhon, NKP & Charn Sinthope & Boehle)

809th EN BN, D CO (CON) 4/4/67 – 12/15/70 (Ku Su Mon & Sakon Nakhon, & Kanchanburi)

809th EN BN, EQUIP & MAINT CO (CON) 2/22/62 – 1/30/71 (NKP

851th SIG DET (Radio Rep AVN) Korat

857th SIG DET (Stg & Issue)

972nd SIG BN

999th EN BN (Friendship)

999th SIG BN 1961-62 (Ramasun)


AMSF-T (Bangkok)


BKK SIG BN (PROV) (SPT) Unknown – 7/14/69 (Bangkok)

Cobra-7 (Ramasun)

DCA (Friendship)


DCSSPO (Friendship)

DEPCHJUSMAGTHAI (PROJ 404)                        

DET 4, 6922nd SECURITY WING 4/65 - 1/8/70

DET 4, 6922nd SECURITY WING Inception 4/65 - 1970/71

DET 4, 6922nd SECURITY WING Inception 4/65 - 1970/71

DET A, 7th RRFS Minburi-DF 65-76

DET A, 83rd RRSOU Minburi-DF 65-76

DET A, 83rd RRSOU Miniburi-DF 65-76

DET B, 7th RRFS Chiang Mai-DF 62-76

DET B, 83rd RRSOU Ubon-DF 62-76

DET B, 83rd RRSOU Ubon-DF 62-76

DET C, 7th RRFS Ubon-DF 62-76

DET C, 83rd RRSOU Chiang Mai-DF 62-76

DET C, 83rd RRSOU Chiang Mai-DF 62-76

DET D, 7th RRFS Phanom Sarakham-DF 70-76

DET D, 83rd RRSOU Udorn-DF 14/4/65 - 25/9/66

DET D, 83rd RRSOU Udorn-DF/Intercept 4/14/65 - 8/25/66

DET D, 83rd RRSOU became 7th RRFS 25/9/66 - 20/6/76

DET J, 7th RRFS Ubon-Intercept 9/68 6/74

DET J, 83rd RRSOU Ubon-Intercept 9/68 6/74

H & S CO (Ramasun)

HQ DET, 7th RRFS Udorn after 10/70

HQ DET, 83rd RRSOU Bangkok

After closing the 83rd RRSOU, all detachments were re-designated to 7th RRFS.



JTF116 (Friendship)

MARS (Friendship)




NAVY SECURITY DET Udorn 1/71 - 5/5/76

SRU-11 (Signal Research Unit 11) Don Muang RTAFB, Bangkok (8/1/62 - 9/1/69)

STRATCOM SIG BN (PROV) (LL COMMO) (Unknown - 7/14/69) (Udorn, Ubon)


TR MVMT OFC I (Sattahip)


















USACC-THAILAND-I&S (U.S. Army Communications Command-Thailand)

USARSUPTHAI (Friendship)


USARSUPTHAI CE Division (Friendship)


USARSUPTHAI G-3 Section (Friendship)

USARSUPTHAI HHD Liaison (Friendship)



USASCCCCA (Friendship)


USASTRATCOM FAC (Samae San) (Warin)

USASTRATCOM SIG Bn. Long Lines Communications Unknown - 7/14/69 UBON

USASTRATCOM SIG Bn., Provisional- Long Lines Communications Unknown - 7/14/69



USASTRATCOM-Thailand (Phu Mu)

USATA (Samae San)


US Marine Battalion Landing Team (BLT)



On 1 July 1974 USARSUPTHAI was inactivated at Camp Samae San, Sattahip and all of its functions were assumed by the U.S. Military Assistance Command, Thailand, Support Group (USMACTHAI, SG) and all U.S. forces were requested to be out of the country by March 1976.