During the years of 1967?1971 as part of the Vietnam War the 198th was part of the United States Army's 23rd "Americal" Infantry Division. In 1968, elements of the 198th Infantry Brigade, under the leadership of Lieutenant Colonel Robert B. Nelson, participated in the Battle of Kham Duc. On 21 November 1969, Colonel Joseph G. Clemons, (of Pork Chop Hill fame), assumed command of the 198th Infantry Brigade.
The 198th Infantry Brigade was reactivated on 15 May 2007 at Fort Benning, Georgia to serve as an Infantry Training Brigade. It is commanded by Colonel Jonathan Neumann and the Command Sergeant Major Micheal Evans.
Headquarters & Support Company
19 INF DUI.gif 1st Battalion, 19th Infantry, commanded by LTC Mark R. Read and Command Sergeant Major is CSM Charles Room
19 INF DUI.gif 2nd Battalion, 19th Infantry commanded by LTC Michael Fazio and Command Sergeant Major Puckett
50 Inf Rgt DUI.jpg 1st Battalion, 50th Infantry commanded by LTC Thomas Nelson and CSM Woods
54 Inf Rgt DUI.png 2nd Battalion, 54th Infantry commanded by LTC Lawrence Baker and CSM Tucker
2?54 IN was under the administrative control of 192d Infantry Brigade until 24 August 2011.
58 Inf Rgt DUI.gif 2nd Battalion, 58th Infantry commanded by LTC Jeffrey S. Crapo and Command Sergeant Major Timothy N. Johnson