The 632nd Armor Regiment traced its lineage back to the 632nd Tank Destroyer Battalion that saw service in World War II as well as the 132nd Tank Battalion and 105th Armor Regiment of the Wisconsin National Guard.

[1] Company B at Sparta was consolidated into the new 105th Light Equipment Maintenance Company together with headquarters and headquarters troop of the 1st Squadron, 105th Cavalry and Troop C of the same squadron.

[2][3][4] The same reorganization also eliminated the 32nd Infantry Division, and the 1st Battalion, 632nd Armor became a nondivisional unit under the control of the 264th Armor Group headquarters.

[9] The M48-equipped battalion, more than 500-strong, was sent to West Germany with the brigade in January 1986 for three weeks to participate in Exercise Reforger '86.

[11] In late 2001, the 1st Battalion, 632nd Armor was inactivated as a result of the reorganization of the 32nd Infantry Brigade from mechanized to light infantry.