151st Medical Battalion Unit Crest (Wings of Mercy) - Sold in Pairs SBBA~Double~11244DBR Distinctive unit insignia (DUI) are

Distinctive unit insignia (DUI) are worn on the Army Class A Greens and Army Service Uniform (ASU)

The blue "cactus" on the crest

41st Infantry Brigade Combat Team Unit Crest (We Will Prevail)

NOMAD SHADOW (ONS) Nov 5

Army Training and Doctrine Command Combat Service Identification Badge

151st Medical Battalion Unit Crest (Wings of Mercy) - Sold in Pairs SBBA~Double~11244DBR Distinctive unit insignia (DUI) areUnited States Army 151st Medical Battalion Unit Crest (Wings of Mercy) 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