High Quality Content by WIKIPEDIA articles! Coats of arms of US infantry regiments are heraldic emblems associated with infantry regiments in the US Army. Under Army Regulation 840-10, each regiment and separate table of organization and equipment (TOE) battalion of the US Army is authorized a coat of arms to be displayed on the organization`s flag, called the "colors." This coat of arms usually forms the basis for the unit`s distinctive unit insignia (DUI), the emblem worn by all members of the unit on their service uniforms.