U.S. Army South "Defense and Fraternity" Crest afaircrew 1st Marine Expeditionary Force CSIB

1st Marine Expeditionary Force CSIB

followed by a number representing the rank

Army Aircrew Senior Badge Bundle

Career Counselor Black Metal Pin-on Badge

U.S. Army South "Defense and Fraternity" Crest afaircrew 1st Marine Expeditionary Force CSIBU. S. Army South "Defense and Fraternity" 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