451ST CHEMICAL BATTALION
Distinctive Unit Insignia
A gold color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of three billows of white smoke issuing upwards and behind a gold retort half filled with a "liquid" of cobalt blue within and surmounting a gold benzene ring, all above a blue scroll bearing the inscription "RESOLUTE AND LOYAL" in gold letters.
Cobalt blue and yellow (gold) are the colors used for Chemical organizations. The chemical retort and the billowing smoke within the benzene ring refer to their command or operational control of chemical smoke generator companies.
The distinctive unit insignia was approved on 28 October 1968.
NOTE: A coat of arms was never approved for this battalion.