Also known as a unit crest or DUI, a Distinctive Unit Insignia 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 (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.
Enlisted personnel wear the insignia centered on a shoulder loop by placing it an equal distance from the outside shoulder seam to the outside edge of the shoulder-loop button. Officers (except Generals) wearing grade insignia on the shoulder loops center the DUI by placing it an equal distance between the inside edge of the grade insignia and the outside edge of the button.
Full 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.
♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦
This Distinctive Unit Insignia was originally approved for the 104th Infantry Division on 15 December 1942 and was redesignated for the 104th Division Training in 1959. It was also authorized for the 104th Division (Institutional Training) until a new insignia, designed under the guidance of Major General T.K. Moffett and based heavily on the unit’s Shoulder Sleeve Insignia, was approved. That new insignia has since been redesignated for the 104th Training Division and the current 104th Training Division (Leader Training).
The design of the 104th Infantry Division Distinctive Unit Insignia was based upon two things: the numerical designation of the unit and its motto. A heraldic martlet (similar to a small bird such as a martin) is perched on the interior of a circle with a decrescent in its beak. The decrescent symbolizes the Roman numeral “C” for 100, and the martlet is the heraldic representation of the fourth son, adding up to 104. The unit motto, “We Succeed,” cements the insignia.
Click here for the current 104th Training Division unit crest.