 Such training continued into the following year as the brigade prepared for a field training exercise at Fort Irwin in June 1967.The 191st Infantry Brigade was inactivated on 29 February 1968 at Helena, Montana, after only five years of existence, although some of its subordinate elements remained active as separate units.This included the 8th Battalion, 40th Armor, which was reassigned to the 63d ARCOM.