The 158th Infantry was demobilized and returned to state service following the end of World War II. It was redesignated in June 1967 as the 258th Infantry Brigade. It was subsequently reorganized and redesignated in August 1968 as the 258th Military Police Brigade. In August 1976 the unit was reorganized and redesignated as the 258th Support Center, later the 258th Rear Area Operations Center. The Cannon Company, 158th Infantry was reorganized as the 153d Field Artillery Brigade (including units of the 180th Field Artillery Regiment). The 153d FA Brigade was reorganized and redesignated as the 98th Troop command in 2006. In September 2010 the unit was reorganized and redesignated as the 158th Maneuver Enhanced Brigade. The 1st Battalion, 180th Field Artillery Regiment was reorganized and redesignated in 2006 as the 1st Battalion, 158th Infantry Regiment and assigned as an element of the 29th Infantry Brigade Combat Team (HI ARNG).