Shoulder Sleeve Insignia

Description
Within a red circle 2 1/2 inches (6.35cm) in diameter and 3/16 of an inch (.48cm) in width on a white disc the red letters D D back to back in the form of an octagon, elements of letters 1/8 inch (.32cm) in width.

Symbolism
The two "D's" stand for the "Dixie Division" from which the brigade descended.

Background
The shoulder sleeve insignia was originally approved for the 31st Division on 7 March 1919. It was redesignated for the 31st Armored Brigade on 25 February 1974. The insignia was redesignated effective 30 September 2002, with description updated and a symbolism added, for the 31st Chemical Brigade. (TIOH Drawing Number A-1-96)