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History

• HQ & HQ Company at Bien Hoa from sometime between November 1966 and January 1967¹: 31 
• 145th Security Platoon at Bien Hoa from sometime between November 1966 and January 1967²: 31 
• 87th Quartermaster Detachment (PETRL) at Bien Hoa from sometime between November 1966 and January 1967³: 31 
• 68th Assault Helicopter Company at Bien Hoa from 17 July 1966⁴: 11 
  • 391st Transportation Detachment (KD) at Bien Hoa from sometime between November 1966 and January 1967⁵: 31 
  • 282nd Signal Detachment (RL) at Bien Hoa from sometime between November 1966 and January 1967⁶: 31 
  • 430th Medical Detachment (OA) at Bien Hoa from sometime between November 1966 and January 1967⁷: 31 
• 117th Assault Helicopter Company at Bien Hoa from 1 January 1968⁸: 12  until sometime between February 1970 and April 1970⁹: 19 
  • 140th Transportation Detachment (KD) at Bien Hoa from 1 January 1968¹⁰: 12 
  • 256th Signal Detachment (RL) at Bien Hoa from 1 January 1968¹¹: 12 
• 118th Assault Helicopter Company at Bien Hoa¹²: 32 
  • 573rd Transportation Detachment (KD) at Bien Hoa¹³: 32 
  • 198th Signal Detachment (RL) at Bien Hoa¹⁴: 32 
• 190th Assault Helicopter Company at Bien Hoa from 8 September 1967¹⁵: 19 
  • 605th Transportation Detachment (KD) at Bien Hoa from 1967¹⁶: 46 
  • 520th Medical Detachment (OA) at Bien Hoa from 1967¹⁷: 46 
• 334th Aviation Company (Armed)/(Assault Helicopter)/(Aerial Weapons Company) at Bien Hoa from sometime between February and April 1967¹⁸: 45 
  • 571st Transportation Detachment (KD) at Bien Hoa¹⁹: 45 
  • 320th Signal Detachment (RL) at Phu Loi²⁰: 45 

Current structure

• 1st Battalion²¹
  • A Company
  • B Company
  • D Company

References

1. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf ↩

2. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf ↩

3. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf ↩

4. Wickham, K (1966). Lessons learned - Headquarters 12th Combat Aviation Group (1 May 1966 – 31 Jul 1966) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200157/https://apps.dtic.mil/dtic/tr/fulltext/u2/385757.pdf ↩

5. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf ↩

6. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf ↩

7. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf ↩

8. Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf ↩

9. Wickham, K (1970). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1970 – 30 Apr 1970) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/511151.pdf ↩

10. Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf ↩

11. Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf ↩

12. Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf ↩

13. Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf ↩

14. Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf ↩

15. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Aug 1967 – 31 Oct 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200145/https://apps.dtic.mil/dtic/tr/fulltext/u2/388846.pdf ↩

16. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Aug 1967 – 31 Oct 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200145/https://apps.dtic.mil/dtic/tr/fulltext/u2/388846.pdf ↩

17. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Aug 1967 – 31 Oct 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200145/https://apps.dtic.mil/dtic/tr/fulltext/u2/388846.pdf ↩

18. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1967 – 30 Apr 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/386514.pdf ↩

19. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1967 – 30 Apr 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/386514.pdf ↩

20. Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1967 – 30 Apr 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/386514.pdf ↩

21. "1-145th Aviation Regiment". U.S. Army. 15 March 2020. Archived from the original on 31 October 2020. Retrieved 15 March 2020. https://home.army.mil/novosel/usaace/units/1AB/1-145th ↩