1. Military Specification MIL-S-3001F. (6 November 1964)
The 137th Infantry Regiment (First Kansas) is an infantry regiment of the United States Army. It is a part of the Kansas Army National Guard and has served with distinction in the Philippine Insurrection, World War I, and World War II. Today, only the 2nd Battalion (2–137) exists as the 2–137th Combined Arms Battalion, and is a component of the 635th Regional Support Group.
The 1st and 2nd Battalions were again called to active service on 13 May 1968 during the Vietnam War as part of the 69th Infantry Brigade (SEP) and sent to Fort Carson, Colorado. The regiment and brigade became a part of the 5th Infantry Division (Mechanized). It remained at Fort Carson until 12 December 1969 when it was released from active duty, and returned to the Kansas Army National Guard. Many of the enlisted soldiers and most of the Regiment's Officers were sent to Vietnam as replacements to regular army units.