4O4th ARMY SECURITY AGENCY DETACHMENT

Deployed: 4 May 1965
Cover Designation: Detachment 1, 3d Radio Research Unit
Assigned Command: 53d US Army Security Agency Special Operations Command (3d RRU)
Supported Command: 173d Airborne Brigade
Location: Bien Hoa
Reassigned Command: 303d Army Security Agency Battalion in May 1966
Cover Redesignation: 404th Radio Research Detachment on 29 July 1966
Reassigned Command: 313th Army Security Agency Battalion on 1 December 1967
Relocated: Phu Hiep in February 1968
Relocated: LZ English (Bong Son) on January 69
Reassigned Command: US Army Security Agency Field Station, Pleiku on 30 September 1971
Inactivated: 1 April 1972 (zero strength 28 August 1971)*
Vietnam Campaign Credit: 2-17
Vietnam Honors: 1 PUC, 6 MUCs, and 1 RVN CGP
*Residual mission transferred to 330th Radio Research Field Station on 23 July 1971