Military Assistance Command Vietnam (MAC V) Combat Service Identification Badge Command Units a wrench and a lightning

a wrench and a lightning bolt refer to the unit's primary mission of quick vehicle repair and support

"Strength Through Knowledge

keeping the swivel attached to your weapon until you remove it

and operate telecommunications systems

United States Army I (1st) Corps Unit Crest (America's Corps)

Military Assistance Command Vietnam (MAC V) Combat Service Identification Badge Command Units a wrench and a lightningUnited States Army Military Assistance Command Vietnam (MAC V) Combat Service Identification Badge Criteria: This is the metal Combat Service Identification Badge (CSIB) worn on the Army Service Uniform (ASU). Worn to reflect combat service with the U. S. Army Military Assistance Command Vietnam (MACV). Sold individually.