ADA (Air Defense Artillery) Center and School Unit Crest (Militant) - Sold in Pairs O-2 First Lieutenant " is printed along the

" is printed along the top of the design and neatly summarizes the unit's primary mission

It was a part of aviation

This unit served in the North Russia Intervention and WW2

Beef Roast

ADA (Air Defense Artillery) Center and School Unit Crest (Militant) - Sold in Pairs O-2 First Lieutenant " is printed along theUnited States Army ADA (Air Defense Artillery) Center and School Unit Crest (Militant) 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