U.S. Army 4th Cavalry Unit Crest (each) path Distinctive unit insignia (DUI) of

Distinctive unit insignia (DUI) of a design approved by The Institute of Heraldry

Army South "Defense and Fraternity" Crest (each)

(Spear with Airborne Tab)

are authorized under Paragraph 28-22 of Army Regulation 670-1

and “O” for officers

U.S. Army 4th Cavalry Unit Crest (each) path Distinctive unit insignia (DUI) ofU. S. Army 4th Cavalry Unit Crest (each). A distinctive unit insignia (DUI) is a metallic heraldic badge or device worn by soldiers in the United States Army. The DUI design is derived from the coat of arms authorized for a unit. DUIs may also be called "distinctive insignia" (DI) or, imprecisely, a "crest" or a "unit crest" by soldiers or collectors. The U. S. Army Institute of Heraldry is responsible for the design, development and authorization of