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United States Army Chemical Biological Radiological and Nuclear School (USACBRNS)
Active1918 – present
Country United States
Branch United States Army
Garrison/HQFort Leonard Wood
Motto(s)Elementis regamus proelium (Let Us Rule the Battle by Means of the Elements or We rule the battle through the elements)
ColorsCobalt Blue and Gold
33rd Chief of Chemical/ CommandantColonel W Bochat
Regimental Chief Warrant OfficerChief Warrant Officer 4 Matthew D. Chrisman
Regimental Command Sergeant MajorCommand Sergeant Major Raymond Perez Quitugua Jr.
LTG Thomas W. Spoehr, LTG Leslie Smith, MG Peggy Combs, LTG Maria Gervais, MG James Bonner, BG Daryl O. Hood, BG Sean Crockett

The United States Army CBRN School (USACBRNS), located at Fort Leonard Wood, Missouri, is a primary American training school specializing in military Chemical, Biological, Radiological, and Nuclear (CBRN) defense.[1] until 2008, it was known as the United States Army Chemical School.

Training Facilities

Seal of the U.S. Army Chemical Corp

In accordance with U.S. Federal Law, Fort Leonard Wood, Missouri is designated as the central location for all of the Department of Defense's CBRN Operations Training and home to the Chemical Corps Regiment. It was moved from Fort McClellan Alabama after the base was closed by the Defense Base Closure and Realignment Commission (BRAC) in 1999.

The Army CBRN School provides numerous courses for Commissioned Officers, Non-Commissioned Officers and Initial Entry Soldiers. Numerous international organisations also send students to train at the CBRN School. Additionally, the US Air Force, US Navy, US Coast Guard and US Marine Corps also maintain training elements at Fort Leonard Wood, in partnership with the Army CBRN School, to train their personnel in CBRN operations.

Fort Leonard Wood and the United States Army CBRN School have facilities, in which to conduct training, such as Chemical Defense Training Facility (or CDTF) where military students from across the globe train and become familiar with nerve agents in realistic scenarios, and conduct training with radiological isotopes and inert biological agents. The Edwin R. Bradley Radiological Teaching Laboratories is one of the few radiological teaching laboratories licensed by the NRC in the Department of Defense. It provides a variety of training in radiological and nuclear defense under the supervision of credentialed scientists.

The newest facility at the CBRN School is the Lieutenant Joseph Terry CBRN Training Facility. Opened in November 2007, the 1LT Joseph Terry Chemical, Biological, Radiological, Nuclear (CBRN) Responder Training Facility occupies approximately 22.5 acres (91,000 m2) and provides a state-of-the-art[peacock prose] CBRN Responder Training Campus for Inter-Service and other Agencies as requested. The US Army CBRN School is the lead for all DOD CBRN Response Training. This facility provides unmatched[peacock prose] training opportunities in the fields of CBRN Consequence Management, Hazardous Materials Incident Response, Realistic training venues and other CBRN Response arenas as required. The CBRN School also provides training in Sensitive Site Assessment and Exploitation.

In addition to training, the CBRN School also develops doctrine for Operations, researches and develops materiel requirements, and conducts joint service experimentation as the Joint Combat Developer for the Department of Defense's Chemical and Biological Defense Program.

Official name change

On 11 January 2008, The U.S. Army Chemical School was renamed as The U.S. Army Chemical, Biological, Radiological and Nuclear School (USACBRNS). The name change was to encompass, in the title of the school the wide range of training and expertise maintained by the U.S. Army Chemical Corps.


As of 6 June 2023, the Commandant of the U.S. Army CBRN School is Colonel W Bochat United States Army CBRN School. The Assistant Commandant is Colonel Sedrick L. Jackson. The Regimental Command Sergeant Major is CSM Raymond P. Quitugua Jr.. The Regimental Chief Warrant Officer is CW4 Matthew D. Chrisman.[2]

Former Commandants and Chiefs of Chemical

Name Photo Term Began Term Ended Y M D Reason
Director of Chemical Warfare Service
- MG William L. Sibert 17 May 1918 1 Mar 1920 1 9 14 Resigned 1884 (USMA)
Chief of the Chemical Warfare Service
1. MG Amos A. Fries 1 Jul 1920
(16 Jul 1920)
27 Mar 1929 8 8 12 Relieved 1898 (USMA)
2. MG Harry L. Gilchrist 28 Mar 1929 27 Mar 1933 4 - - Relieved 1900
3. MG Claude E. Brigham 9 May 1933
(24 May 1933)
23 May 1937 4 - - Relieved 1901 (USMA)
4. MG Walter C. Baker 24 May 1937 30 Apr 1941 3 11 7 Retired 1901
5. MG William N. Porter 31 May 1941 30 May 1945 4 - - Relieved 1910
* MG William N. Porter 31 May 1945 10 Nov 1945 - 5 11 - -
* BG Alden H. Waitt 10 Nov 1945 29 Nov 1945 - - 20 - -
6. MG Alden H. Waitt 29 Nov 1945 20 Aug 1946 - 8 23 Retired 1920
Chief of the Chemical Corps
6. MG Alden H. Waitt 20 Aug 1946 30 Sept, 1949 3 1 11 Retired 1920
7. MG Anthony C. McAuliffe 1 Oct 1949 1950 Relieved 1919 (USMA)
Chief Chemical Officer
7. MG Anthony C. McAuliffe 1950 31 Jul 1951 Relieved 1919 (USMA)
8. MG Egbert F. Bullene 25 Aug 1951 31 Mar 1954 2 6 25 Retired 1917 (USNA)
9. MG William M. Creasy 7 May 1954 31 Aug 1958 4 3 25 Retired 1926 (USMA)
10. MG Marshall Stubbs 1 Sept, 1958 31 Jul 1962 3 11 - Relieved 1929 (USMA)
Chief of Chemical
24. BG Thomas W. Spoehr 29 Jun 2006
25. BG Leslie C. Smith 10 Aug 2010 1983 (ROTC)
26. COL Vance P. Visser 10 Aug 2010 24 Aug 2012 1984 (ROTC)
27. BG Peggy C. Combs 7 Sept, 2012 5 June 2014 1985 (ROTC)
28. BG Maria R. Gervais 5 June 2014 26 May 2016 1987 (ROTC)
29. BG James E. Bonner 26 May 2016 6 July 2017 1988 (ROTC)
30. BG Antonio (Andy) Munera 29 June 2017 25 April 2019 1991 (ROTC)
31. BG Daryl O. Hood 25 April 2019 4 June 2021 1991 (ROTC)

See also


  1. ^ Marcus Kabel (19 July 2008). "Army changes name of chemical school in Fort Leonard Wood". Columbia Missourian. Associated Press. Retrieved 14 June 2023.
  2. ^ U.S. Army CBRN School web site. Retrieved 13 November 2020.