The 1-110th Armor Massachusetts Army National Guard was formed in 1959.

The Headquarters Company was the
26th Cavalry Recon Troop that fought in Yankee Division's
drive to Bastogne under Milliken's and Patton's III Corps of the Third Army.

This unit was in Natick from 1947-1959. It eventually moved to Worcester.

Company A was in Clinton.

Company B was in Hudson.

Company C was in
Concord.

The 110th Armor and 26th Cavalry were combined into the 1-110th Cavalry in 1988 with 1-110th
Armor becoming A Troop 110th Cavalry.