The 5th Battalion, 20th Infantry Regiment ("Sykes' Regulars") was redesignated on 16 August 1986 as Headquarters and Headquarters Company, 5th Battalion, 20th Infantry (Mechanized) assigned to the 1st Brigade, 2nd Infantry Division on Camp Casey, Korea. From 1986 to 1995 the 5th Battalion, 20th Infantry (Mechanized) were responsible for conducting patrol missions along the Korean DMZ during the Cold War. Once the Cold War ended the battalion was pulled off of their permanent position along the DMZ, and conducted stability and support operations (SASO) throughout South Korea. In 1995, the battalion was reassigned to Fort Lewis, and the 2nd Battalion, 9th Infantry replaced them at Camp Casey.
Tags: 5th, batalion, bn, 20, 20th