189th Infantry Brigade Unit Crest (Swift and Lethal) - Sold in Pairs SBBP~178_NOSWWIIM-plate The double sided key represents

The double sided key represents vigilance and security

The two I-Beams in the design are symbolic of the unit's mission to provide organization structure

The lightning flashes are indicative of the speed and power of electronic communication

Criteria: These unit crests are worn by the 12th Aviation Brigade

United States Navy Electronics Technician Collar Device

189th Infantry Brigade Unit Crest (Swift and Lethal) - Sold in Pairs SBBP~178_NOSWWIIM-plate The double sided key representsUnited States Army 189th Infantry Brigade Unit Crest (Swift and Lethal) 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 the Senior