The Distinctive Unit Insignia of the 193rd Support Battalion (designated as the 193rd Brigade Support Battalion at the time of its inactivation in 2015 at Fort Leonard Wood, Missouri) was originally approved on 11 August 1978. It was amended to include metric measurements in the description and to revise the symbolism on 26 February 1993. It features a complex heraldry charge called a fret, which consists of two bendlets placed in saltire (“x” shape) interlaced with a mascle (diamond shape with open interior). The barbed ends on the blue bendlets are an allusion to the direction and scope of the Battalion’s operations—essentially to the “four corners” of the world. Barbs also suggest weaponry and equipment employed by the Battalion’s personnel, the interlacing of the fret denotes coordination and control.
A red annulet (the circle that forms the border of the insignia) represents a wheel and, combined with the lightning flashes on it, suggests efficient mobility. The couped fleur-de-lis denotes wartime service in Europe, and the scarlet color recalls the Meritorious Unit Commendation the unit received for service in the Normandy, Northern France, Ardennes-Alsace, and Central Europe campaigns. The blue of the bendlets is a reference to support of Infantry units. “Strength In Diversity” is the unit motto and refers to its multifaceted capabilities.
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Also known as a DUI or a unit crest, this Distinctive Unit Insignia was originally approved for the 193d Support Battalion on 11 August 1978. It was amended to include metric measurements in the description of the insignia and revise the symbolism on 26 February 1993. Distinctive Unit Insignias are worn by all Soldiers (except General Officers) in units that have been authorized to be issued the device. It is worn centered on the shoulder loops of the Army Green Service Uniform (AGSU) and the blue Army Service Uniform (ASU, Enlisted only) with the base of the insignia toward the outside shoulder seam. DUIs are not worn on the Dress variations of either uniform, however.
More guidance on wear of the DUI is found in DA Pamphlet 670-1, Section 21-22, "Distinctive unit insignia" and 21–3(d) and (e), "Beret" and "Garrison Cap," respectively.