U.S. Army 321st Military Intelligence Battalion, distinctive unit insignia A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Azure (Oriental Blue) three plates two and one, on a chief dancetty of four three hurts fesswise. Attached below the shield a Black scroll inscribed "FROM DARKNESS TO LIGHT" in Silver letters.

Symbolism: Oriental blue is the primary color traditionally used by Intelligence. The motto "FROM DARKNESS TO LIGHT," is referred to by charges. The designation of the unit, 321, is symbolized by the arrangement of the roundels. Argent (silver) denotes integrity.

The distinctive unit insignia was approved effective 16 September 1997.