U.S. 199th Light Infantry Brigade
Overview
 
The 199th Infantry Brigade (Light) is a major combat unit of the United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 which served in the Reserves from 1921–1940, in the active Army from 1966 to 1970 (serving in the Vietnam War
Vietnam War
The Vietnam War was a Cold War-era military conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam, supported by its communist allies, and the government of...

) briefly in 1991–1992 at Fort Lewis
Fort Lewis
Joint Base Lewis-McChord is a United States military facility located south-southwest of Tacoma, Washington. The facility is under the jurisdiction of the United States Army Joint Base Garrison, Joint Base Lewis-McChord....

, and from 2007 as an active Army training formation at Fort Benning
Fort Benning
Fort Benning is a United States Army post located southeast of the city of Columbus in Muscogee and Chattahoochee counties in Georgia and Russell County, Alabama...

.

The brigade was first formed in the West Virginia
West Virginia
West Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...

 Organized Reserve in 1921, as part of the 100th Infantry Division. It incorporated the 398th and 399th Infantry Regiments.
However with the reorganisation of the Army from four-regiment to three-regiment divisions as World War II approached, the Brigade was disbanded in 1940.

The formation was formed for the second time at Fort Benning
Fort Benning
Fort Benning is a United States Army post located southeast of the city of Columbus in Muscogee and Chattahoochee counties in Georgia and Russell County, Alabama...

, Georgia in 1966.
 
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