Shoulder Sleeve Insignia of the 31st Chemical Brigade.

DescriptionWithin 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.SymbolismThe two "D's" stand for the "Dixie Division" from which the brigade descended.BackgroundThe 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.
Vector version of [1], obtained from the Army Institute of Heraldry.