120th Engineer Battalion Unit Crest (Never Idle) - Sold in Pairs SBBA~Double~11349DBR The trident below it alludes

The trident below it alludes to the Mississippi River

National Guard

Criteria: The Aerospace Experimental Psychologist insignia is a military badge of the United States Navy which is issued to those members of the Navy Medical Service Corps who have been qualified as in-flight aviation observers with certification in psychology

5th Security Force Assistance Brigade (no motto)

Laos and Thailand between the dates of November 15

120th Engineer Battalion Unit Crest (Never Idle) - Sold in Pairs SBBA~Double~11349DBR The trident below it alludesUnited States Army 120th Engineer Battalion Unit Crest (Never Idle) 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