31st ADA (Air Defense Artillery) Brigade Unit Crest (Ready and Vigilant) - Sold in Pairs SBBA~Double~11018DBR covered with dark blue or

covered with dark blue or black cloth

and Coast Guardsmen

United States Army 2nd Engineer Battalion Unit Crest

as well as preform the duties associated with flight engineers

also known as the "SEAL Trident"

31st ADA (Air Defense Artillery) Brigade Unit Crest (Ready and Vigilant) - Sold in Pairs SBBA~Double~11018DBR covered with dark blue orUnited States Army 31st ADA (Air Defense Artillery) Brigade Unit Crest (Ready and Vigilant) Criteria: Unit Crests are unique to each unit in the U. S. Army and are officially known as Distinctive Unit Insignia although most Soldiers refer to them as "Unit Crests." The insignia design is derived from the coat of arms authorized for a unit. All personnel assigned to the organization wear the insignia, except general officers, the Sergeant Major of the