U.S. ARMY 57TH AIR DEFENSE ARTILLERY REGIMENT UNIT CREST (DUI)

The 57th Air Defense Artillery Regiment Distinctive Unit Insignia was first approved for the 57th Coast Artillery Regiment (Tractor Drawn) on 3 February 1931. It was redesignated for the 57th Field Artillery Battalion on 27 June 1952, then for the 57th Artillery Regiment on 12 December 1958. It was redesignated effective 1 September 1971 for the 57th Air Defense Artillery Regiment.

In November 1918, the 57th Artillery (Coast Artillery) achieved the greatest feat of its French wartime service when it was able to cut the railway line between Montmedy and Sedan, working from its positions near Stenay. This is what is symbolized on the shield of the 57th Air Defense Artillery Regiment unit crest, with the dual lines between the arms of Montmedy (a black lion) and the arms of Sedan (a black board) broken in the middle by the Regiment, shown by the rampant lion in red, the color of Artillery. The shield is colored gold, the same as the shield of Lorraine where the famous engagement occurred. The unit motto, VETO, is Latin for “I Forbid.”

As of Summer 2023, there are no active Battalions in the 57th Air Defense Artillery Regiment, but a Stars & Stripes article dated 13 February 2023 refers to yet-to-be reactivated 1st Battalion, 57th Air Defense Artillery Regiment that "will be based in Ansbach."

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.