United States Army 3rd Chemical Mortar Battalion

U. S. ARMY 3RD CHEMICAL MORTAR BATTALION -  The 3rd Chemical Brigade is a training brigade of the United States Army based at Fort Leonard Wood, Missouri, retaining for historic reasons its name.  

The 3rd Chemical Brigade was first constituted on January 1, 1942 as the 3rd Chemical Battalion.   It was activated at Fort Benning, Georgia.  The unit was reorganized and redesignated as the 3rd Chemical Mortar Battalion on March 11, 1945.  It was inactivated on January 2, 1946 at Camp Patrick Henry, Virginia.  The unit reactivated at Fort Bragg, North Carolina on September 18, 1950, but again inactivated there on February 5, 1953. On September 20, 1989, the unit was disbanded.

The unit reconstituted on October 1, 1999 in the Regular Army and was redesignated as 3rd Chemical Brigade.  Command of the unit was transferred to the United States Army Training and Doctrine Command, and activated at Fort Leonard Wood, Missouri.

Campaign participation credit World War II

• Sicily (with arrowhead)
• Naples-Foggia
• Rome-Arno
• Southern France (with arrowhead)
• Rhineland
• Ardennes-Alsace
• Central Europe