U.S. ARMY 1ST INFANTRY DIVISION UNIT CREST (DUI)

In keeping with the straightforward design of its Combat Service Identification Badge (CSIB), elegant simplicity is the hallmark of the Distinctive Unit Insignia (DUI) of the  "Big Red One," the 1st Infantry Division. The red and blue hemispheric borders are taken from the distinguishing flags of infantry divisions. In the middle stands Lady Victory with outstretched arms. It's the same figure found atop the 1st Infantry Division Monument in Washington, D.C., with the difference being that the statue features her carrying a flag.
 

Also known as a unit crest, a Distinctive Unit Insignia (DUI) is 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.
 

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