517th ADA (Air Defense Artillery) Unit Crest (We Sweep the Sky) - Sold in Pairs ISLAND_14D~81231 United States Army 91st Engineer

United States Army 91st Engineer Battalion Unit Crest (Acts Not Words)

Constructed with 1000 Denier nylon

United States Army 156th Armor Regiment Unit Crest (First to Fight)

United States Army Staggered-Right 1/8-Inch Spaced 13 Ribbon Mount

Korea Defense Service Medal

517th ADA (Air Defense Artillery) Unit Crest (We Sweep the Sky) - Sold in Pairs ISLAND_14D~81231 United States Army 91st EngineerUnited States Army 517th ADA (Air Defense Artillery) Unit Crest (We Sweep the Sky) 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 Army and