US ARMY 92nd Chemical Battalion Patch Wyvern Distinctive Unit Insignia. Description: A 3 x 3.5 inch patch consisting of a blue benzene ring shaped shield bearing a gold wyvern with red tongue, tail, barb claws, and collar, the collar bearing a white fleur-de-lis, and holding a gold hilted sword with white blade bearing a blue vertical wavy bar; attached below a gold scroll inscribed "HIDE BEHIND ME" in blue letters. Symbolism: Cobalt blue and golden yellow (gold) are the colors used for chemical units. The benzene ring is adapted from the Chemical Corps insignia of branch. The wyvern, by virtue of its ability to breathe fire, smoke and gas, is symbolic of the Chemical Corps mission. The collar charged with a fleur-de-lis and the sword with a wavy pale represent the unit's participation in World War II campaigns in France and the Rhineland. Background: The distinctive unit insignia was approved on 7 November 1985.